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Lead-free ferroelectric relaxor ceramics derived from BaTiO3
被引:60
|作者:
Ravez, J
[1
]
Simon, A
[1
]
机构:
[1] CNRS, Inst Chim Mat Condensee, F-33608 Pessac, France
来源:
关键词:
D O I:
10.1051/epjap:2000140
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
A large number of lead-free BaTiO3-based ceramics were prepared. Depending on the composition, some of them exhibit a relaxer behaviour whose characteristics were related to the type of ionic substitution and to the substitution rate. The relaxer effect is all the more favoured as the composition deviates more from BaTiO3 and as the substitution is heterovalent in the 6-coordination number crystallographic site. Some of these materials could prove valuable (dielectrics for capacitors and actuators) because they are environment-friendly.
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页码:9 / 13
页数:5
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