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Low‐Temperature Sintering, Densification, and Properties of Z‐type Hexaferrite with Bi 2 O 3 Additives
Author(s) -
Zhang Hongguo,
Li Longtu,
Zhou Ji,
Yue Zhenxing,
Gui Zhilun
Publication year - 2001
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.1151-2916.2001.tb01110.x
Subject(s) - sintering , materials science , solid state , grain boundary , planar , grain size , composite material , mineralogy , microstructure , chemical engineering , chemistry , engineering , computer graphics (images) , computer science
The effect of the addition of Bi 2 O 3 on the densification, low‐temperature sintering, and electromagnetic properties of Z‐type planar hexaferrite was investigated. The results show that Bi 2 O 3 additives can improve the densification and promote low‐temperature sintering of Z‐type hexaferrite prepared by a solid‐state reaction method. The presence of Bi 2 O 3 in the grain boundaries and the generation of Fe 2+ degrade the initial permeability of the samples but make the quality factor and cut‐off frequency increase. Various possible mechanisms involved in generating these effects were also discussed.