Metal Organic Resin Derived Barium Titanate; II, Kinetics of BaTiO3Formation
作者： Suresh Kumar , Gary L. Messing
DOI: 10.1111/J.1151-2916.1994.TB04528.X
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摘要: A physicochemical model has been developed for the kinetics of barium titanate formation from X-ray-amorphous, metal organic precursors by relating changes in physical structure precursor particles with degree transformation isothermally heated powder samples. From electron microscopy and gas adsorption, it is evident that consist 20-to 60-nm crystallites < 10-nm intraparticle pores. Ba,Ti oxycarbonate phase forms on heating precursor, which subsequently decomposes to form BaTiO3 It concluded follows shrinking core model, overall rate-controlled diffusion CO2 through nanometer-size
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