Wyniki wyszukiwania dla: CERAMIC COATING SURFACE OXIDATION ELECTROSTATIC SPRAY DEPOSITION THERMAL STRESS SLURRY TESTS SURFACE FRACTURE

• Protective properties of Al2O3 + TiO2 coating produced by the electrostatic spray deposition method

  Publikacja

  • A. Krella
  • A. Krupa
  • M. Gazda
  • A. Sobczyk
  • A. Jaworek

  - CERAMICS INTERNATIONAL - Rok 2017

  Mechanical resistance of Al2O3 + TiO2 nanocomposite ceramic coating deposited by electrostatic spray deposition method onto X10CrAlSi18 steel to thermal and slurry tests was investigated. The coating was produced from colloidal suspension of TiO2 nanoparticles dispersed in 3 wt% solution of Al2(NO3)3, as Al2O3 precursor, in ethanol. TiO2 nanoparticles of two sizes, 15 nm and 32 nm, were used in the experiments. After deposition,...

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• Fatigue Bending of V-Notched Cold-Sprayed FeCoCrNiMn Coatings

  Publikacja

  • P. Cavaliere
  • A. Perrone
  • A. Silvello
  • A. Mirowska
  • G. Blasi
  • I. G. Cano

  - Metals - Rok 2022

  Cold-spray coatings were produced by FeCoCrNiMn high-entropy alloy powders deposited on carbon steel substrate. The coatings were realized at intermediate temperature and high pressure (at 1100 °C and 7 MPa). The coating microstructure was characterized by scanning electron microscopy and X-ray diffraction, revealing a very dense deposition and high flattening ratio of the splatted particles. This had a large influence on the...

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• APPLIED SURFACE SCIENCE

  Czasopisma

  ISSN: 0169-4332 , eISSN: 1873-5584

• Transverse surface waves on a cylindrical surface with coating

  Publikacja

  • V. Eremeev
  • G. Rosi
  • S. Naili

  - INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE - Rok 2020

  We discuss the propagation of transverse surface waves that are so-called whispering-gallery waves along a surface of an elastic cylinder with coating. The coating is modelled in the framework of linearized Gurtin–Murdoch surface elasticity. Other interpretations of the surface shear modulus are given and relations to so-called stiff interface and stiff skin model are discussed. The dispersion relations are obtained and analyzed.

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• EFFECT OF SURFACE STATE AND STRESS ON AN OXIDATION OF THE ZIRCALOY-2 ALLOY

  Publikacja

  • A. Hernik
  • G. Gajowiec
  • W. Serbiński
  • A. Zieliński

  - International Journal of Managent Information Technology Engineering - Rok 2016

  Zr alloys are widely used as materials for nuclear fuel pellets in the nuclear industry. In the case of the LOCA or RIA happen, a temperature may locally reach high values. Even if the high temperature maintains shortly, the zirconium oxides may become permeable, absorb hydrogen appearing in cooling water from decomposition reaction and crack because of formation and brittle failure of hydrides. Such model cannot so far take into...

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• Surface Science - 2021/2022

  Kursy Online

  • L. Piotrowski

  The goal of the subject is the presentation of basic problems resulting from he existence of interfacebetween material objects and its surroundings. Discussion of the consequences arising from the existenceof surface energy. Analysis of possible applications of surface phenomena in technology. Understanding ofproblems and benefits resulting from decreasing dimensions of objects with the special emphasis on thesemiconductor band...

• Drop-coating deposition surface-enhanced Raman spectroscopy on silver substrates for biofluid analysis

  Publikacja

  • M. Wróbel
  • Z. Huang
  • S. Siddhanta
  • I. Barman

  - Rok 2019

  Utilization of surface-enhanced Raman spectroscopy as a measurement technique is of particular interest in biodetection due to its superb chemical specificity and high sensitivity. The use of SERS substrates further improve this method by massive enhancement of the molecule Raman spectrum, permitting very low levels of detection. Therefore it is important to seek for new ways to develop reliable substrates, which are quickly and...

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• Surface Science - 2023/2024

  Kursy Online

  • A. Manohar
  • J. Ryl
  • L. Piotrowski
  • A. Tober

  The course is not a full time lecture but on the consultation/handouts. The consulations are held every two weeks. The course is based on the Springer textbook: Surface Science An Introduction Downloadable at: https://link.springer.com/book/10.1007/978-3-662-05179-5 (PG network or vpn access) The goal of the subject is the presentation of basic problems resulting from he existence of interfacebetween material objects...

• Fracture surface formation of notched 2017A-T4 aluminium alloy under bending fatigue

  Publikacja

  • W. Macek

  - INTERNATIONAL JOURNAL OF FRACTURE - Rok 2022

  The effect of cyclic loading on facture surface topology in notched components made by aluminium alloys is not completely clear. Fractogra-phy and fracture mechanics can help to understand this interdependency. This paper aims to study the distribution of the fracture surface roughness of notched 2017A-T4 aluminium alloy after bending fatigue using an optical focus-variation surface measurement technique by applying the fracture...

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• Deposition and growth of thin ceramic films

  Publikacja

  • A. Chrzan
  • D. Grudzień
  • J. Karczewski

  - Rok 2015

  : Thin ceramic films play an important role in modern technology. One of the more utilized methods of deposition of ceramic films is spin coating. In this paper we investigate optimal deposition parameters for LaNi0.6Fe0.4O3−δ thin layers spin coated from a polymeric precursor. The quality of the obtained layers is checked using scanning electron microscopy. Additionally, we investigate the growth of grains in ceramic films annealed at...

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