Search results for: FRICTION HEAT PARTITION

• Partition of friction heat between sliding semispaces due to adhesion-deformational heat generation

  Publication

  • O. Nosko

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Year 2013

  Analytical expressions of heat-partition coefficient and contact temperatures for two sliding semispaces with account for adhesion-deformational heat generation and contact heat exchange have been obtained. The rate of deformational heat generation is assumed to decay exponentially with increase of distance from the interface. It has been shown that heat-generation configuration and the intensity of contact heat exchange have impact...

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• Heat transfer enhancement, flow visualization and friction characteristics in rib-roughened channels

  Publication

  • A. Stąsiek
  • M. Jewartowski
  • D. Mikielewicz
  • J. Stąsiek

  - Year 2011

  W pracy przedstawiono wyniki badań eksperymentalnych związanych z intensyfikacją wymiany ciepła w kanałach wyposażonych w żebra, które poprawiają warunki przejmowania ciepła od ścianki do przepływającego medium. W badaniach wykorzystano system PIV oraz termografię ciekłokrystaliczną.

• Analytical solution of non-stationary heat conduction problem for two sliding layers with time-dependent friction conditions

  Publication

  • N. Belyakov
  • O. Nosko

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Year 2016

  In this article we conduct an overview of various types of thermal contact conditions at the sliding interface. We formulate a problem of non-stationary heat conduction in two sliding layers with generalized thermal contact conditions allowing for dependence of the heat-generation coefficient and contact heat transfer coefficient on time. We then derive an analytical solution of the problem by constructing a special coordinate...

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• Investigation on polypropylene friction stir joint: effects of tool tilt angle on heat flux, material flow and defect formation

  Publication

  • F. Guangle
  • J. Tomków
  • M. E. Abdullah
  • H. A. Derazkola

  - Journal of Materials Research and Technology-JMR&T - Year 2023

  Tool tilt angle (TTA) is a critical factor that can control material flow in polymeric materials' friction stir joining (FSJ). This study selected a TTA range between 0° to 4° for FSJ of polypropylene (PP) polymer sheet. A modified computational fluid dynamic (CFD) technique was implemented to gain a deep understanding of the effects of TTA during FSJ of PP. The PP joint's internal flow, defect formation, heat generation, and tensile...

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• An inverse algorithm for contact heat conduction problems with an interfacial heat source based on a first-order thermocouple model

  Publication

  • O. Nosko

  - INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER - Year 2024

  Inverse problems of contact heat conduction with an interfacial heat source are common in various fields of science, engineering and technology. In this study, an algorithm for their solution is developed based on an inverse parametric optimisation method with an impulse response function describing the heat partition and contact heat transfer. A first-order thermocouple model with a time constant parameter is embedded in the impulse...

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• Perfect thermal contact of hyperbolic conduction semispaces with an interfacial heat source

  Publication

  • O. Nosko

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Year 2021

  The problem of thermal contact between two bodies with a heat source at their interface presents great scientific and practical interest. On the time scale of a nanosecond or shorter, heat propagation should be considered in the form of thermal waves of finite speeds. This study investigated the thermal behaviour of hyperbolic conduction semispaces in perfect thermal contact subjected to the action of an interfacial heat source....

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• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B37/#A35

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A39/#B41

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A35/#B37

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B48/#A45

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B41/#A39

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A23/#B22

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration 12 min. The...

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B39/#A41

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B34/#A33

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A45/#B48

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A41/#B39

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC  over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The...

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A25/#B21

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B22/#A23

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN over CrN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  6 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A33/#B34

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC  over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B21/#A21

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 25 min....

• TiN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A45/#A47

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  20 min. The test...

• TiN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A45/#B45

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - series: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  90 min. The test...

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_2

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_3

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_3

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_5

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_5

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_5

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_3

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_3

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_3

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_5

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_4

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_2

  Open Research Data

  open access

  • K. Suwińska
  • J. Łubiński

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_3

  Open Research Data

  open access

  • J. Łubiński
  • K. Suwińska

  Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.

• DLC coating doped with W in ring-on-ring sliding with water lubrication 10MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of 1% W (tungsten) doped DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: WATER. Tribometer: PT-3. Overall test time >15h. The test was...

• DLC coating in ring-on-ring sliding with water lubrication 10MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: WATER. Tribometer: PT-3. Overall test time >15h. The test was augmented by vibration...

• DLC coating in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 20MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h. The test was augmented...

• DLC coating in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 10MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h. The test was augmented...

• DLC coating in ring-on-ring sliding with water lubrication 20MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: WATER. Tribometer: PT-3. Overall test time >15h. The test was augmented by vibration...

• DLC coating doped with W in ring-on-ring sliding with water lubrication 20MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of 1% W (tungsten) doped DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: WATER. Tribometer: PT-3. Overall test time >15h. The test was...

• DLC coating doped with W in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 20MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of 1% W (tungsten) doped DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h....

• DLC coating doped with W in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 10MPa/0.1m/s

  Open Research Data

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of 1% W (tungsten) doped DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h....

• On the partition dimension of trees

  Publication

  • J. A. Rodriguez-Velazguez
  • I. G. Yero
  • M. Lemańska

  - DISCRETE APPLIED MATHEMATICS - Year 2014

  Given an ordered partition Π={P1,P2,…,Pt} of the vertex set V of a connected graph G=(V,E), the partition representation of a vertex v∈V with respect to the partition Π is the vector r(v|Π)=(d(v,P1),d(v,P2),…,d(v,Pt)), where d(v,Pi) represents the distance between the vertex vv and the set Pi. A partition Π of V is a resolving partition of G if different vertices of G have different partition representations, i.e., for every...

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• Calculating the Partition Coefficients of Organic Solvents in Octanol/Water and Octanol/Air

  Publication

  • M. Nedyalkova
  • S. Madurga
  • M. Tobiszewski
  • V. Simeonov

  - Journal of Chemical Information and Modeling - Year 2019

  Partition coefficients define how a solute is distributed between two immiscible phases at equilibrium. The experimental estimation of partition coefficients in a complex system can be an expensive, difficult, and time-consuming process. Here a computational strategy to predict the distributions of a set of solutes in two relevant phase equilibria is presented. The octanol/water and octanol/air partition coefficients are predicted...

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