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Abstract:
采用高温烧结制备钨青铜型Ba4 Sm2 Fe2 Nb8 O30铁电体,研究了氧气下退火热处理对其晶体结构、介电性能和铁电性能的影响.研究表明,退火处理后,Ba4 Sm2 Fe2 Nb8 O30铁电体仍为钨青铜单相,但是晶胞体积略有增大;介电常数明显降低,而介电损耗略有升高.退火前后Ba4 Sm2 Fe2 Nb8 O30铁电体均观测到典型的电滞回线:退火前其矫顽电场Ec=8.35 kV/cm,剩余极化强度Pr=0.62 C/cm2;而退火后铁电性能改善为Ec=7.2 kV/cm,Pr=1.57 C/cm2.
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金属热处理
ISSN: 0254-6051
CN: 11-1860/TG
Year: 2018
Issue: 3
Volume: 43
Page: 151-154
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 5
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