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	Microwave synthesis of BaTiO/sub 3/ from BaCO/sub 3/ and TiO/sub 2/
	Yanyi Liu ; Wei Pan
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ barium compounds crystallisation materials preparation microwave heating powders scanning electron microscopy solid-state phase transformations titanium compounds X-ray diffraction/ barium titanate microwave synthesis barium carbonate titanium oxide microwave oven X-ray diffraction XRD scanning electron microscopy SEM phase compositions powder morphologies Ba/sub 2/TiO/sub 4/ Ba/sub 4/TiO/sub 9/ crystallization barium titanate powder particle size microwave heating 300 to 500 nm 950 C 1050 C 10 mins BaCO/sub 3/ BaTiO/sub 3/ TiO/sub 2// A8120E Powder techniques, compaction and sintering A8130H Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder A6140G Structure of powders and porous materials A6470K Solid-solid transitions B8540C Process heating/ size 3.0E-07 to 5.0E-07 m temperature 1.22E+03 K temperature 1.32E+03 K time 6.0E+02 s/ BaCO3/ss CO3/ss O3/ss Ba/ss C/ss O/ss BaTiO3/ss TiO3/ss O3/ss Ba/ss Ti/ss O/ss TiO2/bin O2/bin Ti/bin O/bin
中文摘要	BaTiO/sub 3/ powder was synthesized from BaCO/sub 3/ and TiO/sub 2/ using a domestic microwave oven. The samples were synthesized under different temperatures with various holding times. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to examine the phase compositions and morphologies of the result samples. The main phase obtained at 950 degrees C was BaTiO/sub 3/, and the intermediate phases Ba/sub 2/TiO/sub 4/ and Ba/sub 4/TiO/sub 9/ were also detected. The pure, well-crystallized BaTiO/sub 3/ powder could be obtained at 1050 degrees C within 10 minutes and the particle size ranged from 300-500 nm. In comparison with conventional synthesis, faster speed and finer grains could be achieved through microwave heating.
语种	英语 ; 英语
出版者	Trans Tech Publications ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20654]
专题	清华大学
推荐引用方式 GB/T 7714	Yanyi Liu,Wei Pan. Microwave synthesis of BaTiO/sub 3/ from BaCO/sub 3/ and TiO/sub 2/[J],2010, 2010.
APA	Yanyi Liu,&Wei Pan.(2010).Microwave synthesis of BaTiO/sub 3/ from BaCO/sub 3/ and TiO/sub 2/..
MLA	Yanyi Liu,et al."Microwave synthesis of BaTiO/sub 3/ from BaCO/sub 3/ and TiO/sub 2/".(2010).

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