Study on the Preparation and Structure of Mullite Membrane

Journal of Inorganic Materials

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Study on the Preparation and Structure of Mullite Membrane

HUANG Yong-Qian; ZHENG Chang-Qiong; XIE Chang-Qing

Department of Inorganic Materials; Sichuan Union University Chengdu 610065 China

Received:1997-11-17 Revised:1998-01-04 Published:1998-12-20 Online:1998-12-20

Abstract

Abstract: Supported;and unsupported mullite membranes were prepared by sol-gel process from bothtetraethyoxysilane (TEOS) and aluminium nitrate precursors. Structure, appearance and poresize of the mullilte membrane were characterized by DAT-TG, XRD, SEM and BET. The resultsshowed non-crystal xerogel membrane transformed into the mullite membrane after heat treatmentat 1050℃. The most concentrative pore diameter of unsupported mullite membrane was about3. 71nm.

Key words: sol-gel process, mullite membrane, structure, preparation

CLC Number:

O484

HUANG Yong-Qian,ZHENG Chang-Qiong,XIE Chang-Qing. Study on the Preparation and Structure of Mullite Membrane[J]. Journal of Inorganic Materials.

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Study on the Preparation and Structure of Mullite Membrane

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