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Títol: Contact damage in artificially aged 3Y-TZP
Autor: Armas Sancho, Zamir de
Jiménez Piqué, Emilio
Mestra Rodríguez, Álvaro Miguel
Anglada Gomila, Marcos Juan
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
Matèries: Àrees temàtiques de la UPC::Enginyeria dels materials::Materials ceràmics
Condensed matter -- Structure
Condensed matter -- Thermal properties
Thin films -- Surfaces
3Y-TZP materials
Matèria condensada
Làmines (Enginyeria)
Tipus de document: Article
Descripció: The behaviour of hydrothermal degraded 3 % molar yttria stabilised zirconia under monotonic spherical indentation has been studied. The investigation is focused mainly on analysing the response under spherical indentation in terms of the transformed monoclinic surface layer that appears after hydrothermal degradation. The mechanisms of damage are ring and cone cracking, similarly as in as sintered specimens. The permanent damage induced in degraded specimens is always larger than in the as sintered specimens. The "plastic" damage measured by the value of the indentation strain in degraded specimens is larger than in as sintered specimens at the same indentation pressure. The critical contact load to induce ring cracking is determined and it is found that in degraded specimens its value is lower than in as sintered specimens. The results are discussed in terms of elastic properties and microstructure of the degraded layer.
Altres identificadors i accés: De Armas, Z. [et al.]. Contact damage in artificially aged 3Y-TZP. "IOP Conference Series: Material Sciences and Engineering", 2010, vol. 27, p. 51-56.
0213-3725
http://hdl.handle.net/2117/10286
10.1088/1757-899X/5/1/012013
Disponible al dipòsit:E-prints UPC
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