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Effect of the Strontium:Barium Ratio and Atmosphere on the Sintering Behavior of Strontium Barium Niobate
Author(s) -
Lee Wen Jiung,
Fang TsangTse
Publication year - 1998
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.1151-2916.1998.tb02334.x
Subject(s) - sintering , strontium barium niobate , materials science , barium , strontium , oxygen , niobium , activation energy , partial pressure , molar ratio , limiting , mineralogy , analytical chemistry (journal) , metallurgy , chemistry , catalysis , ferroelectricity , mechanical engineering , biochemistry , optoelectronics , organic chemistry , chromatography , dielectric , engineering
The sintering behavior of Sr x Ba 1− x Nb 2 O 6 (SBN) ( x = 0.5, 0.6, and 0.7) was studied. The densification rate increased and the evaluated activation energy of SBN decreased as the Sr:Ba molar ratio increased. Also, when SBN50 (SBN where x = 0.5) was sintered at <1300°C, the densification rate decreased as the oxygen partial pressure increased, and, at 1300°C, the oxygen partial pressure had insignificant influence on the densification. The relationship of sintering behavior and structure of SBN has been discussed, and the niobium ion was suggested as being the rate‐limiting species when sintering SBN.