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Author:

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

Indexed by:

CPCI-S EI Scopus SCIE

Abstract:

(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.

Keyword:

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

Author Community:

  • [ 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

Reprint Author's Address:

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

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Source :

JOURNAL OF ELECTROCERAMICS

ISSN: 1385-3449

Year: 2008

Issue: 1-4

Volume: 21

Page: 577-580

1 . 7 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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