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Effect of Grain Size and Poling on the Fracture Mode of Lead Zirconate Titanate Ceramics
Author(s) -
Kim SangBeom,
Kim DohYeon,
Kim JeongJoo,
Cho SangHee
Publication year - 1990
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1990.tb05113.x
Subject(s) - lead zirconate titanate , poling , transgranular fracture , materials science , grain size , ceramic , intergranular fracture , composite material , intergranular corrosion , lead titanate , fracture (geology) , metallurgy , ferroelectricity , microstructure , optoelectronics , dielectric
The fracture mode of lead zirconate titanate (PZT) ceramics at room temperature is investigated as a function of grain size. The fracture mode is almost intergranular at small grain size and changes to predominantly transgranular at large grain size. Application of an electric field (poling) causes a change in the fracture mode from transgranular to intergranular. The observed fracture behavior of PZT ceramics is explained in relation to a possible domain structure.