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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.)

Abstract:

<正>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(Ti O2)x陶瓷;在室温至600°℃范围内,测量了这些陶瓷样品的喇曼光谱随温度的变化。随着温度的升高,喇曼光谱中位于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。喇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(Ti O2)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(TiO 2)0.08单晶热膨胀系数测量数据的支持。

Keyword:

Ta_2O_5 TiO_2 结构相变 喇曼光谱

Author Community:

  • [ 1 ] Department of Physics,University of Puerto Rico
  • [ 2 ] 北京工业大学激光工程研究院

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Source :

Year: 2001

Language: Chinese

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: 6

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