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	A promising Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic for thermal barrier coatings
	Qiang Xu ; Wei Pan ; Chunlei Wan ; Longhao Qi ; Hezhuo Miao
	2010-05-10 ; 2010-05-10
关键词	Experimental/ calcium ceramics crystal structure doping samarium compounds sintering solid-state phase transformations thermal barrier coatings thermal expansion X-ray diffraction X-ray spectra/ TBC ceramic thermal barrier coatings sintering solid state reaction method phase structure thermal expansion coefficient XRD high temperature dilatometry pyrochlore crystal structure calcium doping X-ray spectral shift Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ 10 h 1600 C samarium lattice/ A8160D Surface treatment and degradation of ceramics and refractories A8120L Preparation of ceramics and refractories A8120E Powder techniques, compaction and sintering A8130H Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder A6570 Thermal expansion and thermomechanical effects A6160 Crystal structure of specific inorganic compounds A6170T Doping and implantation of impurities A7870C X-ray scattering (condensed matter)/ temperature 1.87E+03 K time 3.6E+04 s/ Sm1.9Ca0.1Zr2O6.95/ss O6.95/ss Sm1.9/ss Ca0.1/ss Zr2/ss Ca/ss Sm/ss Zr/ss O/ss
中文摘要	Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic was sintered at 1600 degrees C for 10 h in air by solid-state reaction method. The phase structure and thermal expansion coefficient were measured by XRD and a high-temperature dilatometry method, respectively. The results show that the crystal structure of Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic is still pyrochlore. The doping with calcium cation leads to a shift of the X-ray spectrum of Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic to lower 29 values. The experiments also show that the thermal expansion coefficients of Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic are higher than those of Sm/sub 2/Zr/sub 2/O/sub 7/ ceramic. These results are related to the vacancy induced by doped calcium cation in the samarium lattice.
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/123456789/21100]
专题	清华大学
推荐引用方式 GB/T 7714	Qiang Xu,Wei Pan,Chunlei Wan,et al. A promising Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic for thermal barrier coatings[J],2010, 2010.
APA	Qiang Xu,Wei Pan,Chunlei Wan,Longhao Qi,&Hezhuo Miao.(2010).A promising Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic for thermal barrier coatings..
MLA	Qiang Xu,et al."A promising Sm/sub 1.9/Ca/sub 0.1/Zr/sub 2/O/sub 6.95/ ceramic for thermal barrier coatings".(2010).

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