-
64浏览
-
0点赞
-
0收藏
-
0分享
-
70下载
-
0评论
-
引用
期刊论文
Mn4+ and W6+ substitution on Bi2O3-ZnO-Nb2O5-based low firing ceramics
Ceramics International 30(2004)1219-1223,-0001,():
The ion substitution with Mn4+ and W6+ co-substituted Nb5+ in B site of a low firing Bi2O3-ZnO-Nb2O5-based A2B2O7 pyrochlore ceramicswas investigated. TheMn4+ andW6+ co-substitutionwas tentatively introduced in cubic-monoclinic pyrochlores co-existing ceramics Bi3xZn2−3x (ZnxNb2−x−2yMnyWy) O7 (x = 0.5-0.65, y=0, 0.02, 0.05, 0.1) and the results shows interested regular influence on the structure, dielectric properties with the amount of substitution amount change. With the structure evaluation and electrical properties measurement results, the Mn4+ and W6+ substituted Nb5+ in B site shows effective to depress the grain growth and the ceramic with fine grains in 1-3m can be obtained. The electrical properties was also enhanced in smaller substitution amount but degraded with the substitution amount increasing. Based on these results, small amount of Mn4+ andW6+ substitution was successfully applied to a base ceramic with the electrical properties satisfied the NP0 specification to miniaturize the grains and enhance the sintering behavior.
【免责声明】以下全部内容由[汪宏]上传于[2005年05月19日 18时35分03秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。
本学者其他成果
同领域成果