Ferroelastic behavior of LaCoO3: A comparison of impression and compression techniques

被引：11

作者：

Akbari-Fakhrabadi, Ali ^{[1
]}

Rodriguez, Oliver ^{[1
]}

Rojas, Ricardo ^{[1
]}

Meruane, Viviana ^{[2
]}

Pishahang, Mohammad Hossein ^{[2
]}

机构：

[1] Univ Chile, Dept Mech Engn, Adv Mat Lab AmLab, Santiago, Chile

[2] Univ Chile, Lab Mech Vibrat & Rotodynam LVMR, Dept Mech Engn, Santiago, Chile

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2019年 / 39卷 / 04期

关键词：

Ferroelasticity; LaCoO3; Impression; Compression; MECHANICAL-BEHAVIOR; INDENTATION TESTS; TISSUES; MODULUS; CREEP;

D O I：

10.1016/j.jeurceramsoc.2018.11.008

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：

Ferroelastic mechanical behavior of LaCoO3 was investigated by the impression test and compared with the conventional compression test using digital image correlation technique for deformation measurement. The results show that the coercive stress for ferroelastic deformation can be detected by impression test, which is less than critical stress for such deformation in the compression test. Room temperature ferroelastic impression creep characterization showed different equilibrium penetration of flat-end punch at different constant stresses, which can be characterized by Prony series equation.

引用

页码：1569 / 1576

页数：8

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