Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
Feature: Cutting edge research on electroceramics 2018: Full papers
Measurement of mechanical properties of BaTiO3 layer in multi-layered ceramic capacitor using a microcantilever beam specimen
Hiroshi YAMAGUCHIJunichi TATAMIMotoyuki IIJIMA
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2019 Volume 127 Issue 6 Pages 335-338

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Abstract

The measurement of the mechanical properties of electroceramics is important for improving the reliability of ceramic components and devices. Although information of the mechanical properties at the microscale level, especially under tensile or bending stress, is desired, this has not yet been reported. In this study, a bending test using a microcantilever beam specimen was applied to measure the mechanical properties of the BaTiO3 layer in a multi-layered ceramic capacitor. As a result, a nonlinearity relationship between stress and strain was observed during the bending test. The bending strength and failure strain, measured using the microcantilever beam specimen, were much higher than those measured using bulk specimens and almost the same or higher than those of conventional Si3N4 ceramics, as the fracture origin was nano-size.

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© 2019 The Ceramic Society of Japan
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