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Densification and Microstructural Development of SrTiO 3 Sintered with V 2 O 5
Author(s) -
Chen JyhShim,
Young RonJong,
Wu TaiBor
Publication year - 1987
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.1151-2916.1987.tb04893.x
Subject(s) - sintering , microstructure , materials science , precipitation , liquid phase , phase (matter) , metallurgy , chemical engineering , mineralogy , chemistry , thermodynamics , physics , organic chemistry , meteorology , engineering
Precipitation of TiO 2 occurs during the sintering of SrTiO 3 with V 2 O 5 added as a liquid‐phase sintering agent. Satisfactory densification can be obtained at 1250°C when using a high content of V 2 O 5 during sintering. However, a microstructure of fine grains and large pores results along with the precipitation of TiO 2 . The precipitation of TiO 2 can be repressed by the addition of excess SrO. A well‐sintered microstructure with superior densification can thus be obtained at 125O°C from specimens sintered with a low content of V 2 O 5 and an appropriate amount of excess SrO.