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author:

梁炳亮 (梁炳亮.) [1] | 郑兴华 (郑兴华.) [2] (Scholars:郑兴华) | 倪维庆 (倪维庆.) [3] | 周小红 (周小红.) [4]

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Abstract:

采用固相合成法制备了(1-x)Ba4Sm9.33Ti18O54-xCa0.61Nd0.26TiO3[(1-x)BST-xCNT]系微波介质陶瓷.探讨了组成、烧结温度对微波介质陶瓷结构、介电性能的影响.x<0.6时,(1-x)BST-xCNT陶瓷为正交结构的新型钨青铜单相.x≥0.6时,相继出现了第二相Sm2Ti2O7和钙钛矿相,最终形成钙钛矿单相.微波介质陶瓷的介电常数ε随x的增大持续升高,品质因子Qf值则先增大后迅速减小再急剧增大.1 325~1 350 ℃烧结样品的微波介电性能达到最佳:x=0时,ε=75,Qf=8985GHz,谐振频率温度系数τf=-8.2×10-6/℃;x=0.2时,ε=75,Qf=9 552GHz,τf=-14.4×10-6/℃;x=1时,ε=108.9,Qf=14919GHz,τf=236.2×10-6/℃.

Keyword:

微波介电性能 微波介质陶瓷 新型钨青铜 钙钛矿

Community:

  • [ 1 ] [梁炳亮]福州大学
  • [ 2 ] [郑兴华]福州大学
  • [ 3 ] [倪维庆]福州大学
  • [ 4 ] [周小红]福州大学

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Source :

硅酸盐学报

ISSN: 0454-5648

CN: 11-2310/TQ

Year: 2006

Issue: 12

Volume: 34

Page: 1437-1441

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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