Search results for: CERAMIKA SICN

• Nagniatanie ślizgowe stali hartowanej Cf53 kulkami ceramicznymi

  Publication

  • S. Dzionk
  • B. Ścibiorski
  • P. Waszczur

  - Mechanik - Year 2014

  Ceramika techniczna dostępna na rynku a stosowana na ostrza skrawające mogłaby być używana również na elementy robocze narzędzi nagniatających. Duża twardość tych materiałów jest korzystna natomiast inne właściwości fizyczne w tym parametry struktury geometrycznej powierzchni powodują, że nie zawsze są właściwym materiałem na elementy robocze w procesie nagniatania materiałów hartowanych. W tym artykule przedstawiono wyniki badań...

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• XPS study of the YST ceramics

  Open Research Data

  open access

  • M. Łapiński

  Yttrium-doped strontium titanate  was prepared via conventional solid-state reaction method from Y2O3 (Sigma Aldrich, 99,9%), TiO2 (Sigma Aldrich, 99%) and SrCO3 (Sigma Aldrich,98%). For comparision, two other techniques were used for synthesis: Pechini and wet methods. Both kind of samples were measured, after and before reduction process (in a hydrogen)....

• Processing and Application of Ceramics

  Journals

  ISSN: 1820-6131 , eISSN: 2406-1034

• XPS analysis of strontium titanate ceramics

  Open Research Data

  open access

  • M. Łapiński

  The chemical composition of the strontium titanite doped with yttrium and iron ceramic samples was investigated. Samples of Y0.07Sr0.93Ti0.8Fe0.2 were prepared by solid phase reaction and sintered for 24 and 48 hours. Chemical composition was measured by UHV OmicronNanotechnology XPS system.  The analysis confirmed the chemical composition of the ceramics...

• Electrochemical performance of Co3O4/CeO2 electrodes in H2S/H2O atmospheres in a proton-conducting ceramic symmetrical cell with BaZr0.7Ce0.2Y0.1O3 solid electrolyte

  Publication

  • T. Kraia
  • S. L. Wachowski
  • E. Vollestad
  • R. Strandbakke
  • M. Konsolakis
  • T. Norby
  • G. Marnellos

  - SOLID STATE IONICS - Year 2017

  The electrochemical performance of Co3O4/CeO2 mixed oxide materials as electrodes, when exposed to H2S/H2O atmospheres, was examined employing a proton conducting symmetrical cell, with BaZr0.7Ce0.2Y0.1O3 (BZCY72) as the solid electrolyte. The impact of temperature (700–850 °C) and H2S concentration (0–1 v/v%) in steam-rich atmospheres (90 v/v% H2O) on the overall cell performance was thoroughly assessed by means of electrochemical...

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• The topography of Bi2VO5.5 ceramics prepared by melt-quenching technique was measured with confocal microscope

  Open Research Data

  open access

  • N. Wójcik
  • J. Ryl

  The topography of Bi2VO5.5 ceramics prepared by melt-quenching technique was measured by confocal microscope. 

• α-Lipoic Acid Reduces Ceramide Synthesis and Neuroinflammation in the Hypothalamus of Insulin-Resistant Rats, While in the Cerebral Cortex Diminishes the β-Amyloid Accumulation

  Publication

  • M. Maciejczyk
  • E. Żebrowska
  • M. Nesterowicz
  • E. Supruniuk
  • B. Choromańska
  • A. Chabowski
  • M. Żendzian-Piotrowska
  • A. Zalewska

  - Journal of Inflammation Research - Year 2022

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• Enhanced Mechanical and Electromechanical Properties of Compositionally Complex Zirconia Zr1–x(Gd1/5Pr1/5Nd1/5Sm1/5Y1/5)xO2−δ Ceramics

  Publication

  • A. Kabir
  • B. Lemieszek
  • M. Varenik
  • V. Buratto Tinti
  • S. Molin
  • I. Lubomirsky
  • V. Esposito
  • F. Kern

  - ACS Applied Materials & Interfaces - Year 2024

  Compositionally complex oxides (CCOs) or high-entropy oxides (HEOs) are new multi-element oxides with unexplored physical and functional properties. In this work, we report fluorite structure derived compositionally complex zirconia with composition Zr1- x(Gd1/5Pr1/5Nd1/5Sm1/5Y1/5)xO2-δ (x = 0.1 and 0.2) synthesized in solid-state reaction route and sintered via hot pressing at 1350 °C. We explore the evolution of these oxides'...

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• Piotr Jasiński prof. dr hab. inż.

  People

  Katedra Inżynierii Materiałów Funkcjonalnych WETI

  Piotr Jasinski obtained MSc in electronics in 1992 from the Gdansk University of Technology (GUT), Poland. Working at GUT, he received PhD in 2000 and DSc in 2009. Between 2001 and 2004 Post Doctoral Fellow at Missouri University of Science and Technology, while between 2008 and 2010 an Assistant Research Professor. Currently is an Associate Professor at Gdansk University of Technology working in the field of electronics, biomedical...

• Ceramic Materials

  Journals

  ISSN: 1505-1269

• Wielopoziomowy przekształtnik trakcyjny SiC z izolacją od sieci 3kV DC realizowaną za pomocą transformatorów 30kHz do napędów EZT

  Publication

  • M. Adamowicz
  • J. Szewczyk
  • J. Pietryka
  • S. Giziewski
  • P. Kruk

  - Year 2019

  W referacie przedstawiono wielopoziomowy izolowany kaskadowy przekształtnik DC-AC z tranzystorami SiC MOSFET 1,2kV, przeznaczony do napędów elektrycznych zespołów trakcyjnych (EZT). Zaproponowana konstrukcja przekształtnika, przeznaczonego do pracy przy zasilaniu z sieci trakcyjnej 3kV DC, spełnia założenia energoelektronicznego transformatora trakcyjnego (z ang. Power Electronic Traction Transformer). Budowa modułowa z niskonapięciowych...

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• Zn-dust derived ultrafine grained ZnO non-linear ceramic resistors via in-situ thermal oxidation of cermet reactant mixture

  Publication

  • M. Jeen
  • S. Balanand
  • S. Anas
  • A. Peer
  • S. Ananthakumar
  • B. Santhosh

  - Materials & Design - Year 2016

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• Influence of the Grain Size Distribution of the Limestone Additives on the Color Properties and Phase Composition of Sintered Ceramic Materials Based on Cream-Firing Clays

  Publication

  • K. Wiśniewska
  • E. Kłosek-Wawrzyn
  • R. Lach
  • W. Pichór

  - Materials - Year 2022

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• Third-order nonlinear optical features of zirconia-added lead silicate glass ceramics embedded with Pb2Fe2O5 perovskite crystal phases and role of Fe ions

  Publication

  • C. Chandrakala
  • A. Reddy
  • J. Jedryka
  • V. Kumar
  • G. Raju
  • N. Venkatramaiah
  • V. Kumar
  • G. Lakshminarayana
  • N. Veeraiah

  - APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING - Year 2020

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• Valence state of Manganium in a MnCoO ceramics

  Open Research Data

  open access

  • M. Łapiński

  Manganium -cobalt based ceramics materials were produced by solid state reaction and sintred in a furnance in air atmosphere for 20h. Annealing temperature was 600 Celsius degree. For investigations a series of samples, with a various composition was chosen: MnCoO, Mn, Co2O and Mn2CoO. In order to determine valence states of the Mn, X-Ray photoemission...

• Chemical composition analysis of the LSNO ceramics

  Open Research Data

  open access

  • M. Łapiński

  The chemical composition of a series of La-Sb-Nb-O ceramics manufactured by the solid-phase reaction method was analyzed. The samples with a various antimony content were measured by XPS method (OmicronNanotechnology UHV system). Analysis confirmed presence of elements: La, Sb, Nb.

• SPTNO ceramics measured by XPS method

  Open Research Data

  open access

  • M. Łapiński

  SPTNO (Sr-Pr-Ti-Ni-O) ceramic were manufactured by solid state reaction, from oxides compounds. Synthesis conducted in air atmosphere at temperature in a range of 800-900 deg. Chemical composition of prepared materials were measured by XPS (X-Ray photoemision spectroscopy) method. UHV OmicronNanotechnology system with 128 channel Argus hemispherical...

• Ograniczenie trwałości skojarzeń ceramicznych w wyniku propagacji pęknięć powierzchniowych = Fatigue life limitation of ceramic materials due to surface crack propagation

  Publication

  • W. Karaszewski

  - TRIBOLOGIA - Year 2009

  Przedstawiono krótką analizę literaturową dotyczącą mechanizmów propagacji pęknięć w materiałach ceramicznych oraz wyniki dotychczasowych badań doświadczalnych wybranych materiałów ceramicznych z uwzględnieniem wpływu pęknięć powierzchniowych na trwałość ceramicznych skojarzeń tocznych.

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• Characteristics of LaCo 0.4 Ni 0.6-x Cu x O 3-δ ceramics as a cathode material for intermediate-temperature solid oxide fuel cells

  Publication

  • Y. Liu
  • S. Wang
  • Y. Hsu
  • H. Kai
  • P. Jasiński

  - JOURNAL OF THE EUROPEAN CERAMIC SOCIETY - Year 2018

  In this study, the effects of Cu-ion substitution on the densification, microstructure, and physical properties of LaCo0.4Ni0.6-xCuxO3-δ ceramics were investigated. The results indicate that doping with Cu ions not only enhances the densification but also promotes the grain growth of LaCo0.4Ni0.6-xCuxO3-δ ceramics. The Cu substitution at x ≤ 0.2 can suppress the formation of La4Ni3O10, while the excess Cu triggers the formation...

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• Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society

  Journals

  ISSN: 0454-5648

• Marek Adamowicz dr hab. inż.

  People

  Department of Controlled Electric Drives

  Stopień naukowy doktora uzyskał w 2008 r. na Wydziale Elektrotechniki i Automatyki Politechniki Gdańskiej. W latach 2005 – 2011 pracował na Akademii Morskiej w Gdyni. W 2010 r. jako laureat programu NCBR LIDER wybrał Wydział Elektrotechniki i Automatyki Politechniki Gdańskiej jako jednostkę realizującą swój projekt z zakresu szerokopasmowych przyrządów półprzewodnikowych i ich zastosowań w elektrowniach wiatrowych. Od 2011 roku...

• MAX phase ternary carbide derived 2-D ceramic nanostructures [CDCN] as chemically interactive functional fillers for damage tolerant epoxy polymer nanocomposites

  Publication

  • S. Vaisakh
  • K. Mahesh
  • S. Balanand
  • R. Metz
  • M. Hassanzadeh
  • S. Ananthakumar
  • B. Santhosh

  - RSC Advances - Year 2015

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• Badania uszkodzeń powłok ceramicznych wskutek tarcia ślizgowego w ruchu postępowo-zwrotnym = Wear pattern testing of ceramic coatings under reciprocating sliding

  Publication

  • K. Druet

  - TRIBOLOGIA - Year 2009

  Badano (wykorzystując mikroskop optyczny oraz skaningowy) morfologię uszkodzeń wybranych powłok ceramicznych ( m.in. DLC z dodatkiem wolframu) nakładanych na podłoże stalowe, będących skutkiem tarcia slizgowego w ruchu postępowo-zwrotnym skojarzenia kula-powierzchnia płaska. Ślady zużycia na kulach, czyli obszary wygładzonych plateau, mają kształt zbliżony do elipsy. Praca, przy zmiennym zwrocie sił stycznych działających na powierzchnię...

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• The structure of vanadate glass-ceramics containing BaTiO3.

  Open Research Data

  open access

  • N. Wójcik
  • J. Ryl
  • J. Karczewski

  The structure of vanadate glass-ceramics doped with BaTiO3 was measured by SEM technique. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on...

• The morphology of vanadate glass-ceramics containing BaTiO3

  Open Research Data

  open access

  • N. Wójcik
  • J. Ryl

  The morphology of vanadate glass-ceramic doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573...

• Investigations of the valence state of Co in a MnCoO ceramics

  Open Research Data

  open access

  • M. Łapiński

  McCoO ceramics materials were produced by solid state reaction and sintred in a furnance in air atmosphere for 20h. Annealing temperature was 600 Celsius degree. For investigations a series of samples, with a various composition was chosen: MnCoO, Mn, Co2O and Mn2CoO. Chemical behaviour of the Cobaltium was measured by XPS method.  The analyses were...

• Effect of particle size and weight fraction of SiC on the mechanical, tribological, morphological, and structural properties of Al-5.6Zn-2.2Mg-1.3Cu composites using RSM: fabrication, characterization, and modelling

  Publication

  • R. Kumar
  • K. Jha
  • S. Sharma
  • V. Kumar
  • C. Li
  • E. Eldin
  • S. Rajkumar
  • G. Królczyk

  - Heliyon - Year 2022

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• Elementy analizy RAMS i cyklu życia napędów nowej generacji w układzie e-transformatora realizowanych w technologii SiC do elektrycznych zespołów trakcyjnych

  Publication

  • M. Adamowicz
  • S. Paweł
  • Z. Krzemiński
  • J. Guziński

  - Year 2018

  Transport kolejowy podlega ciągłej presji, aby zwiększać dostępność połączeń i obniżać koszty przejazdów. Konstruktorzy pociągów i przewoźnicy, w odpowiedzi na stawiane oczekiwania, starają się wdrażać pojawiające się na rynku nowe innowacyjne rozwiązania. Europejski program Shift2Rail stawia ambitne cele w stosunku do kluczowych wskaźników wydajności (z ang. KPI - Key Performance Indicators) systemu kolejowego obejmującego infrastrukturę,...

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• System lokalizacji dla niewidomych, oparty na nawigacji satelitarnej i zliczeniowej

  Publication

  • S. Ceranka

  - Year 2007

  Opracowano, wykonano i przetestowano prototyp urządzenia nawigacyjnego dla osób niewidomych złożony z palmtopa, zawierającego mapę elektroniczną, odbiornika GPS, modułu czujników przyspieszenia i pola magnetycznego oraz klawiatury bezprzewodowej i syntezatora mowy, umożliwiający samodzielne poruszanie się po nieznanym terenie, w szczególności na terenie miasta. W urządzeniu tym zaimplementowano szereg algorytmów wyznaczania położenia...

• Zastosowanie filtracji cząsteczkowej w systemie nawigacji dla niewidomych.

  Publication

  • S. Ceranka

  - Year 2003

  W pracy opisano system nawigacji dla niewidomych wyposażony w odbiornik GPS,mapę cyfrową i czujniki nawigacji zliczeniowej. Problem estymacji położenia pieszego w oparciu o informacje z różnych źródeł rozwiązano przy użyciu podejścia zwanego filtracją cząsteczkową. Zastosowano techniki grupowania cząsteczek i odwzorowania w obszar wypukły, aby zagwarantować, że oszacowania położenia w każdej chwili spełniają ograniczenia nakładane...

• A Novel Microstructural Evolution Model for Growth of Ultra-Fine Al2O3 Oxides from SiO2 Silica Ceramic Decomposition during Self-Propagated High-Temperature Synthesis

  Publication

  • M. Kopec
  • S. Jóźwiak
  • Z. Kowalewski

  - Materials - Year 2020

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• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K07

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K04

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K08

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K02

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K05

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K03

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K01

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K09

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Experimental validation and comparison of a SiC MOSFET based 100 kW 1.2 kV 20 kHz three-phase dual active bridge converter using two vector groups

  Publication

  • T. Lagier
  • P. Dworakowski
  • C. Buttay
  • P. Ladoux
  • A. Wilk
  • P. Camail
  • E. Anak

  - Year 2020

  Full text to download in external service

• Nonlinear impedance of vanadate glass-ceramics containing BaTiO3

  Open Research Data

  open access

  • N. Wójcik
  • R. Barczyński
  • J. Ryl

  The nonlinear impedance of vanadate glasses doped with BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated (573...

• Linear impedance of vanadate glass-ceramics containing BaTiO3

  Open Research Data

  open access

  • N. Wójcik
  • R. Barczyński
  • J. Ryl

  The linear impedance of vanadate glass-ceramics containing BaTiO3 was measured. Samples of the composition of x[BaO,TiO2]–(80 − x)V2O5–20Bi2O3 where x = 5, 10 and 15 in mol% were prepared by a conventional melt quenching technique. The melting was performed in alumina crucibles at the temperature of 1273 K–1373 K. The melts were poured on a preheated...

• Sb measurements in a Bi-Sb-Te ceramics materials

  Open Research Data

  open access

  • M. Łapiński

  The influence of the temperature of the annealing of ceramic materials with the composition Bi0.5Sb1.5Te3O9 was investigated. The materials were annealed at the temperature of 440 degrees Celsius and 450 degrees Celsius. There were no significant differences in the valence of antimony and other elements.

• Influence of the annealing condictions on the chemical structure of LaBaGdCo ceramics

  Open Research Data

  open access

  • M. Łapiński

  Ceramic samples based on Barium, Lanthanum, Gadolinium and Cobaltium were produced by solid state reaction.  After sintring in a furnance, samples were annealed at 300 Celsius degree in wet and dry atmosphere. Annealing takes 72h or 2h. Results of annealing were observed by X-Ray photoemission spectroscopy (XPS), OmicronNanotechnology.  XPS analysis...

• Lanthanum investigations in ceramics annealed in a dry and wet atmosphere

  Open Research Data

  open access

  • M. Łapiński

  Ceramics based on Barium, Lanthanum, Gadolinium and Cobaltium were produced by standard solid state reaction from oxides and carbonate powders. After sintring, samples were annealed for 2 hours or 72 hours at 300 Celsius degree in a both: wet and dry atmosphere. Results of annealing on a chemical composition and valence state of lanthanum were observed...

• Numerical analysis of crack propagation in silicone nitride

  Publication

  • W. Karaszewski

  - Key Engineering Materials - Year 2012

  The properties of ceramics, specifically low density, high hardness, high temperature capability and low coefficient of thermal expansion are of most interest to rolling element manufacturers. The influence of ring crack size on rolling contact fatigue failure has been studied using numerical fracture analysis. Such cracks are very often found on ceramic bearing balls and decrease fatigue life rapidly. The numerical calculation...

• Sebastian Lech Wachowski dr inż.

  People

  Instytut Nanotechnologii i Inżynierii Materiałowej

  Born in 1987 in Bydgoszcz, Poland. In 2012 graduated MSc in Applied Physics: Nanotechnology and in 2017 finished, with honours,  PhD in physics at Gdańsk University of Technology. Since the beginning of his academic journey interested in functional materials, especially in high-tech ceramics. Devoted to the development of high temperature protonic conductors for water vapour electrolyzers and fuel cells. During his career has several...

• A Pilot Study on Machining Difficult-to-Cut Materials with the Use of Tools Fabricated by SLS Technology

  Publication

  • M. Deja
  • D. Zieliński

  - Materials - Year 2021

  The growing use of contemporary materials in various industrial sectors, such as aerospace, automotive, as well as the oil and gas industry, requires appropriate machining methods and tools. Currently, apart from the necessity to obtain high-dimensional and shape accuracy, the efficiency and economic aspects of the selected manufacturing process are equally important, especially when difficult-to-cut materials, such as hard and...

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