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Hot isostatic pressing of silicon nitride Sisub3n4 containing zircon, or zirconia and silicaA hydrothermal synthesis apparatus with a 10 KB cylinder was used to obtain a sintered body of silicon nitride. The sintering auxiliary agents used were zircon (ZrSiO4) and a mixture of zirconia (ZrO2) and silica (SiO2). Experiments were conducted with the amounts of ZrSi04 or ArO2 and SiO2 varying over a wide range and the results compared to discover the quantity of additive which produced sintering in silicon nitride by the hot pressing method.
Document ID
19810018661
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Somiya, S. (NASA Headquarters Washington, DC United States)
Yoshimura, M. (NASA Headquarters Washington, DC United States)
Suzuki, T. (NASA Headquarters Washington, DC United States)
Nishimura, H. (NASA Headquarters Washington, DC United States)
Date Acquired
September 4, 2013
Publication Date
December 1, 1980
Subject Category
Composite Materials
Report/Patent Number
NASA-TM-75880
Accession Number
81N27199
Funding Number(s)
CONTRACT_GRANT: NASW-3199
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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