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作者:

Wei, Q (Wei, Q.) | Chen, ZX (Chen, ZX.) | Wang, ZH (Wang, ZH.) (学者:王志宏) | Hao, YL (Hao, YL.) | Zou, JX (Zou, JX.) | Nie, ZR (Nie, ZR.) (学者:聂祚仁)

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EI Scopus SCIE

摘要:

Phase composition and pore structure of La, Ce, Y and B doped unsupported alumina membranes were investigated by means of X-ray diffraction and N-2 adsorption. The role of La, Ce, Y and B addition in enhancing the thermal stability of alumina membranes is discussed. At temperatures ranging from 800 to 1000 degreesC, La and Y impregnation are more efficient than that of B and Ce to preserve the BET surface area and pore volume. The addition of La can partially stabilize the alumina membranes up to 1200 degreesC by the delay of phase transformation from gamma- to alpha-Al2O3. (C) 2004 Elsevier B.V. All rights reserved.

关键词:

thermal stability alumina membrane phase transformation pore structure

作者机构:

  • [ 1 ] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100022, Peoples R China

通讯作者信息:

  • 聂祚仁

    [Nie, ZR]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100022, Peoples R China

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来源 :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

年份: 2005

期: 1-2

卷: 387

页码: 292-296

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

JCR分区:1

被引次数:

WoS核心集被引频次: 25

SCOPUS被引频次: 27

ESI高被引论文在榜: 0 展开所有

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