Strength control of a ceramic composite by electric field

Akira Kishimoto; Satoshi Seo

doi:10.1117/12.424423

6 April 2001 Strength control of a ceramic composite by electric field

Akira Kishimoto, Satoshi Seo

Proceedings Volume 4234, Smart Materials; (2001) https://doi.org/10.1117/12.424423
Event: Smart Materials and MEMS, 2000, Melbourne, Australia

Abstract

The change in strength of barium titanate/zirconia composite on polarization treatment is evaluated, and the mechanism of this phenomenon is discussed. We have already reported that the bending strength of this composite has increased on longitudinal poling. In this study bending strength of BT/8YSZ composite increased on longitudinal poling and decreases on transverse poling compared with the untreated samples. Both strengthened and weakened specimens tend to return to the almost original strength by heating over Tc of barium titanate. Then, the crack propagation after polarization treatment is observed by SEM, and the detour of cracks around barium titanate grains is found in the cracks going along the poling direction. The detour of crack probably has close connection with the increase in strength in the poling direction.

Citation Download Citation

Akira Kishimoto and Satoshi Seo "Strength control of a ceramic composite by electric field", Proc. SPIE 4234, Smart Materials, (6 April 2001); https://doi.org/10.1117/12.424423

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available