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作者:

Ji, LF (Ji, LF.) (学者:季凌飞) | Jiang, YJ (Jiang, YJ.) (学者:蒋毅坚)

收录:

EI Scopus SCIE

摘要:

Transparent tantalum-pentoxide (Ta2O5) ceramics with high density (> 97%) were prepared from commercial powder by laser sintering without addition of additives at ambient pressure. The ceramic pellet sintered at power density of 5.2 kW/cm(2) for 30 s, then cooling for 60 s exhibits the best transparency. The transmittance of the sample of 0.5 mm thick is up to 35% during the wavelength range from 270 to 3000 nm. The achievement of the transparency is attributed to the grains preferred growth resulting in elongation of grain boundaries, pure phase and low porosity due to the strictly heating directivity and the mass transfer in liquid phase during laser sintering. (c) 2005 Elsevier B.V. All rights reserved.

关键词:

transparent ceramic laser sintering tantalum-pentoxide (Ta2O5)

作者机构:

  • [ 1 ] Beijing Univ Technol, Natl Ctr Laser Technol, Beijing 100022, Peoples R China

通讯作者信息:

  • 蒋毅坚

    [Jiang, YJ]Beijing Univ Technol, Natl Ctr Laser Technol, Beijing 100022, Peoples R China

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来源 :

MATERIALS LETTERS

ISSN: 0167-577X

年份: 2006

期: 12

卷: 60

页码: 1502-1504

3 . 0 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: 9

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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