Young's modulus and hardness of multiphase CaZrO3-MgO ceramics by micro and nanoindentation

被引：39
作者：
Silva, Abilio P. [1 ,2 ]
Booth, Fernando [1 ,3 ]
Garrido, Liliana [3 ]
Aglietti, Esteban [3 ]
Pena, Pilar [1 ]
Baudin, Carmen [1 ]
机构：
[1] CSIC, ICV, Kelsen 5, Madrid 28049, Spain
[2] Univ Beira Interior, Ctr Mech & Aerosp Sci & Technol C MAST UBI, Rua Marques dAvila & Bolama, P-6201001 Covilha, Portugal
[3] CIC CONICET La Plata, CETMIC, Ctr Tecnol Recursos Minerales & Ceram, Camino Centenario & 506,CC 49,B1897ZCA MB Gonnet, Buenos Aires, DF, Argentina
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2018年 / 38卷 / 04期
关键词：
Young's modulus; Hardness; CaZrO2; Ca-ZrO2; Nanoindentation; MECHANICAL-PROPERTIES; INSTRUMENTED INDENTATION; HETEROGENEOUS MATERIALS; CALCIUM ZIRCONATE; ELASTIC-MODULUS; SLIDING WEAR; PHASE; COMPOSITES; SYSTEM; STEEL;
D O I：
10.1016/j.jeurceramsoc.2017.11.007
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The aim of this work is to determine the values of the hardness and elastic modulus of the phases present in CaZrO3-MgO-ZrO2 composites and to analyse their contribution to the composite properties. Two materials previously developed with the same major phases (CaZrO3, MgO and c-ZrO2) present in different volume fractions and grain size have been analysed. The hardness and Young's modulus of each phase determined by nanoindentation are independent from the specific composite and coincident with nanoindentation values for single phase bulk materials. The contribution of the individual phases to Young's modulus of the multiphase materials is in agreement with calculations using the nanoindentation values and the Voight upper limit of the "rule of mixtures". Scale effect due to microcracking has been observed for micro-hardness values of the composites and differences between calculations and experimental values are related to this effect.
引用
收藏
页码：2194 / 2201
页数：8
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