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Production of continuous mullite fiber via sol-gel processingThe development of a continuous ceramic fiber which could be used in rocket engine and rocket boosters applications was investigated at the Marshall Space Flight Center. Methods of ceramic fiber production such as melt spinning, chemical vapor deposition, and precursor polymeric fiber decomposition are discussed and compared with sol-gel processing. The production of ceramics via the sol-gel method consists of two steps, hydrolysis and polycondensation, to form the preceramic, followed by consolidation into the glass or ceramic structure. The advantages of the sol-gel method include better homogeneity and purity, lower preparation temperature, and the ability to form unique compositions. The disadvantages are the high cost of raw materials, large shrinkage during drying and firing which can lead to cracks, and long processing times. Preparation procedures for aluminosilicate sol-gel and for continuous mullite fibers are described.
Document ID
19910045402
Document Type
Reprint (Version printed in journal)
Authors
Tucker, Dennis S.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Sparks, J. Scott
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Esker, David C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1990
Publication Information
Publication: American Ceramic Society Bulletin
Volume: 69
ISSN: 0002-7812
Subject Category
Mechanical Engineering
Distribution Limits
Public
Copyright
Other
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