SYNTHESIS AND CHARACTERIZATION OF A NEW NIOBATE: Sr_6Ti_7Nb_9O_(42)

SYNTHESIS AND CHARACTERIZATION OF A NEW NIOBATE: Sr_6Ti_7Nb_9O_(42)

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摘要 A new niabate Sr6Ti7Nb9O42 was synthesized for the first time by solid state reaction in SrO-TiO2-Nb2O5 ternary system. The new compound was characterized by EPMA, XRD, SEM and DTA. The X-ray powder diffraction data of Sr6Ti7Nb9O42 were firstly reported in the paper. Sr6Ti7Nb9O42 crystallizes the hexagonal system with unit cell parameters a=8.9991(4) A,c= 11.5118(9)A. and space group P6/mcm (193), z=1. The calculated and measured densities are 4. 783 g/cm3 and 4. 764 g/cm3, respectively. A new niabate Sr6Ti7Nb9O42 was synthesized for the first time by solid state reaction in SrO-TiO2-Nb2O5 ternary system. The new compound was characterized by EPMA, XRD, SEM and DTA. The X-ray powder diffraction data of Sr6Ti7Nb9O42 were firstly reported in the paper. Sr6Ti7Nb9O42 crystallizes the hexagonal system with unit cell parameters a=8.9991(4) A,c= 11.5118(9)A. and space group P6/mcm (193), z=1. The calculated and measured densities are 4. 783 g/cm3 and 4. 764 g/cm3, respectively.

作者张辉

出处《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2000年第3期59-61,78,共4页 武汉理工大学学报（材料科学英文版）

基金 Funded by Grant-in-Aid Project (No. 95-04) of International Centre for Diffraction Data.

关键词 SrO-TiO2-Nb2O5 system NIOBATE X-ray powder diffraction SrO-TiO2-Nb2O5 system niobate X-ray powder diffraction

分类号 O641 [理学—物理化学]

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参考文献7

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Journal of Wuhan University of Technology(Materials Science)

2000年第3期

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SYNTHESIS AND CHARACTERIZATION OF A NEW NIOBATE: Sr_6Ti_7Nb_9O_(42)

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