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Author:

蒋毅坚 (蒋毅坚.) (Scholars:蒋毅坚) | P.S.Dobal (P.S.Dobal.) | R.S.Katiyar (R.S.Katiyar.) | 王越 (王越.)

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CQVIP CSCD

Abstract:

采用固相反应技术制备了x分别为0.05、0.08和0.11的(Ta2O5)1-x(TiO2)x陶瓷;在室温至600℃范围内,测量了这些陶瓷样品的拉曼光谱随温度的变化.随着温度的升高,拉曼光谱中位于35~38cm-1的最低频移的声子模发生软化,并随之发生结构相变.拉曼光谱和实验结果都表明:组分x分别为0.05、0.08和0.11的(Ta2O5)1-x(TiO2)x陶瓷分别在360、450和540℃发生了由三斜至单斜相的结构相变.上述结论得到了(Ta2O5)0.92(TiO2)0.08单晶热膨胀系数测量数据的支持.

Keyword:

结构相变 拉曼光谱 热膨胀系数 (Ta2O2)1-x(TiO2)x陶瓷

Author Community:

  • [ 1 ] [蒋毅坚]北京工业大学
  • [ 2 ] [P.S.Dobal]Department of Physics,University of Puerto Rioo, San Juan, PR00931-3343, Puerto Rico
  • [ 3 ] [R.S.Katiyar]Department of Physics,University of Puerto Rioo, San Juan, PR00931-3343, Puerto Rico
  • [ 4 ] [王越]北京工业大学

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Source :

光散射学报

ISSN: 1004-5929

Year: 2002

Issue: 1

Volume: 14

Page: 58-61

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 4

Chinese Cited Count:

30 Days PV: 9

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