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作者:

Wang, Yue (Wang, Yue.) | Zhu, Xue-wen (Zhu, Xue-wen.) | Jiang, Yi-jian (Jiang, Yi-jian.) (学者:蒋毅坚)

收录:

CPCI-S EI Scopus SCIE

摘要:

(Ta2O5)(1-x)(TiO2)(x) system ceramics has been studied intensively as a promising dielectric material for next generation of high density dynamic random access memories instead of SiO2 and Si3N4. It is found that the dielectric permittivity of (Ta2O5)(1-x)(TiO2)(x) ceramics was dependent of fabrication process. But in the previous work, their calcining and sintering time were too long, generally for 24 h or even more. A relatively quick sintering process was provided which calcining and sintering time can be decreased to 12 h at 1200 C and 1 h at 1550 C, respectively. This kind of sintering process can save a lot of energy and time that is In favor of the industrial production. Under this sintering process, the composition dependent dielectric properties of (Ta2O5)(1-x)(TiO2)(x) ceramics have been studied in a wide range of composition (0.01 <= x <= 0.20), and the dielectric constants of most compositions can be drastically enhanced. The maximum dielectric value can reach 216 at composition x=0.04. In the meantime, the mechanism of improvement of ceramic dielectric constants sintered at 1550 degrees C was also discussed.

关键词:

Dielectric properties Sintering temperature (Ta2O5)(1-x)(TiO2)(x)

作者机构:

  • [ 1 ] [Wang, Yue]Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
  • [ 2 ] [Zhu, Xue-wen]Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
  • [ 3 ] [Jiang, Yi-jian]Beijing Univ Technol, Natl Ctr Laser Technol, Beijing 100022, Peoples R China

通讯作者信息:

  • [Wang, Yue]Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China

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来源 :

JOURNAL OF ELECTROCERAMICS

ISSN: 1385-3449

年份: 2008

期: 1-4

卷: 21

页码: 577-580

1 . 7 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

JCR分区:2

被引次数:

WoS核心集被引频次: 2

SCOPUS被引频次: 2

ESI高被引论文在榜: 0 展开所有

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