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Effects of Bovine Serum Albumin on the Low Temperature Synthesis of Barium Titanate Microparticles via a Solid State Route
Author(s) -
Ando Chie,
Kishi Hiroshi,
Oguchi Hiroshi,
Senna Mamoru
Publication year - 2006
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.1551-2916.2006.00917.x
Subject(s) - barium titanate , crystallinity , bovine serum albumin , particle size , materials science , phase (matter) , chemical engineering , nanoparticle , particle (ecology) , oxygen , particulates , chemistry , inorganic chemistry , chromatography , nanotechnology , organic chemistry , metallurgy , ceramic , composite material , oceanography , geology , engineering
Fine particulate and phase pure barium titanate with its average particle size as small as 120 nm and its tetragonality as high as 1.0085 was obtained by adding bovine serum albumin (BSA) to the reactant mixture comprising fine particulate BaCO 3 and TiO 2 . In the presence of BSA, BaCO 3 decomposed at substantially lower temperatures as a consequence of coordination of BSA preferentially to the ligand field of Ba. Elimination of remaining free carbon by increasing oxygen partial pressure under flowing air was one of the technical key issues of the high crystallinity and sinterability of the product.