Detail publikace

Improving contact damage resistance of spinel translucent ceramics through a multi-layer design

NAJAFZADEHKHOEE, A. JABR, A. TALIMIAN, A. PAPŠÍK, R. DRDLÍK, D. MACA, K. GALUSEK, D. BERMEJO, R.

Originální název

Improving contact damage resistance of spinel translucent ceramics through a multi-layer design

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The brittle response of transparent spinel ceramics to contact damage is limiting their application as an alternative to glasses and single crystals. In this work, we explore a strategy to enhance the contact damage resistance of spinel ceramics by embedding alumina layers in a multi-layer architecture. Crack initiation upon Hertzian indentation was investigated in MgAl2O4 - Al2O3 laminates and compared to their corresponding monoliths. Contact stresses during loading were analyzed using finite element simulations by considering the elastic properties of the layers and contact non-linearities. Results were analyzed using Weibull statistics. It was found that the effect of in-plane residual stresses on crack formation in the laminate depends on the disposition of the compressive spinel layers, either at the surface or embedded in the structure. Embedding alumina between spinel layers increased the load-bearing capability before crack initiation by similar to 70 % compared to spinel, offering a promising approach to enhance contact damage resistance.

Klíčová slova

Transparent; Contact damage; Multi-layers; Residual stresses; Hertzian indentation

Autoři

NAJAFZADEHKHOEE, A.; JABR, A.; TALIMIAN, A.; PAPŠÍK, R.; DRDLÍK, D.; MACA, K.; GALUSEK, D.; BERMEJO, R.

Vydáno

1. 4. 2025

Nakladatel

ELSEVIER SCI LTD

Místo

London

ISSN

1873-619X

Periodikum

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

Ročník

45

Číslo

4

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221924009440

BibTex

@article{BUT193824,
  author="Aliasghar {Najafzadehkhoee} and Abdullah {Jabr} and Ali {Talimian} and Roman {Papšík} and Daniel {Drdlík} and Karel {Maca} and Dušan {Galusek} and Raul {Bermejo}",
  title="Improving contact damage resistance of spinel translucent ceramics through a multi-layer design",
  journal="JOURNAL OF THE EUROPEAN CERAMIC SOCIETY",
  year="2025",
  volume="45",
  number="4",
  pages="9",
  doi="10.1016/j.jeurceramsoc.2024.117071",
  issn="1873-619X",
  url="https://www.sciencedirect.com/science/article/pii/S0955221924009440"
}