Ba(Mg1/3Ta2/3)O3合成过程及烧结性的研究

无机材料学报

Ba(Mg_1/3Ta_2/3)O₃合成过程及烧结性的研究

卞建江; 赵梅瑜; 殿之文

中国科学院上海硅酸盐研究所; 上海 200050

收稿日期:1997-07-16 修回日期:1997-08-11 出版日期:1998-10-20 网络出版日期:1998-10-20

Synthesizing Process and sinterability of Ba(Mg_1/3Ta_2/3)O₃

BIAN Jian-Jiang; ZHAO Met-Yu; YIN Zhi-Wen

Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China

Received:1997-07-16 Revised:1997-08-11 Published:1998-10-20 Online:1998-10-20

摘要/Abstract

摘要： 利用DTA／TGA、XRD、SEM等分析手段，研究了不同起始原料制备的BMT合成过程及其烧结行为，发现以Ta₂O₅·xH₂O为起始原料，可减少合成过程中产生的中间相，在较低的温度下合成单相BMT，改善了其烧结性．

关键词: 合成过程, 烧结性, Ta₂O₅·xH₂O

Abstract: Ba(Mg_1/3Ya_2/3)O₃ solid-state formation reactions and its sinterability were studied in relation with different raw materials, Ta₂O₅·xH₂O and T₂O₅ raw materials with different
phase structure and grain size were employed as the source Ta₂O₅, along with BCO₃ and MgO. The experiment results indicated that the adoption of
Ta₂O₅·xH₂O can retard the intermediate phase and leads to more complete reaction at lower temperature than that with Ta₂O₅, which is
due to the local stoichiometric homogeneities of the mixed powder and the phase transformation Ta₂O₅ from Ta₂O₅·xH₂O. The sinterability
of the powder prepared from Ta₂O₅·xH₂O is much better than that of the powder from Ta₂O₅.

Key words: reaction process, sinterability, Ta₂O₅·xH₂O

中图分类号:

TB323

卞建江,赵梅瑜,殿之文. Ba(Mg_1/3Ta_2/3)O₃合成过程及烧结性的研究[J]. 无机材料学报.

BIAN Jian-Jiang,ZHAO Met-Yu,YIN Zhi-Wen. Synthesizing Process and sinterability of Ba(Mg_1/3Ta_2/3)O₃[J]. Journal of Inorganic Materials.

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Ba(Mg_1/3Ta_2/3)O₃合成过程及烧结性的研究

Synthesizing Process and sinterability of Ba(Mg_1/3Ta_2/3)O₃

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