Preparation of silicon oxynitride glass fibers by ammonolysis of silica gels

ABSTRACTThe ultimate usefulness of oxynitride glasses and fibers depends upon the minimization or elimination of metallic defects that arise during processing. Despite this, the origins and chemistry of such defects in oxynitride glasses have received scant attention in the literature. The defects reduce glass transparency and cause oxynitride glass fibers to fail at relatively low stress levels. The same types of defects undoubtedly occur in the grain boundary glass phase of sintered Si3N4with unknown effects on material properties.Exampls are shown of Si-rich metallic defects in oxynitride glasses, and their effects on glass and fiber properties are discussed. Chemical reactions that produce the defects are considered, as are chemical analysis results supporting the proposed reaction mechanisms.

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Ab initio molecular orbital calculation of the interatomic potential and force constants in silicon oxynitride glass

Journal of Non-Crystalline Solids ◽

10.1016/0022-3093(88)90163-9 ◽

1988 ◽

Vol 101 (2-3) ◽

pp. 271-279 ◽

Cited By ~ 31

Author(s):

Morio Murakami ◽

Sumio Sakka

Keyword(s):

Ab Initio ◽

Molecular Orbital ◽

Interatomic Potential ◽

Molecular Orbital Calculation ◽

Force Constants ◽

Silicon Oxynitride ◽

Oxynitride Glass

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Synthesis of bulk silicon oxynitride glass through nitridation of SiO 2 aerogels and determination of T g

Journal of the American Ceramic Society ◽

10.1111/jace.17836 ◽

2021 ◽

Author(s):

Yuta Osawa ◽

Kenichiro Iwasaki ◽

Takayuki Nakanishi ◽

Atsuo Yasumori ◽

Yoshio Matsui ◽

...

Keyword(s):

Silicon Oxynitride ◽

Bulk Silicon ◽

Oxynitride Glass

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Yttrium-Silicon-Aluminum Oxynitride Glass Fibers

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1989.tb06055.x ◽

1989 ◽

Vol 72 (11) ◽

pp. 2183-2186 ◽

Cited By ~ 11

Author(s):

Donald R. Messier ◽

Robert P. Gleisner ◽

Ronald E. Rich

Keyword(s):

Glass Fibers ◽

Aluminum Oxynitride ◽

Oxynitride Glass ◽

Silicon Aluminum Oxynitride

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ChemInform Abstract: Alkali Durability of Oxynitride Glass Fibers

ChemInform ◽

10.1002/chin.199116288 ◽

2010 ◽

Vol 22 (16) ◽

pp. no-no

Author(s):

R. WUSIRIKA

Keyword(s):

Glass Fibers ◽

Oxynitride Glass

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Value-In-Use of Composite Reinforcing Fibers

MRS Proceedings ◽

10.1557/proc-702-u5.1.1 ◽

2001 ◽

Vol 702 ◽

Cited By ~ 2

Author(s):

Frederick T. Wallenberger

Keyword(s):

Carbon Fibers ◽

Polymer Matrix Composites ◽

Glass Fibers ◽

Matrix Composites ◽

Plant Fibers ◽

Commercial Use ◽

Pure Silica ◽

Silica Fibers ◽

Reinforcing Fibers ◽

Oxynitride Glass

ABSTRACTThis paper analyzes the value-in-use of advanced fibers, especially of those, which are used to reinforce polymer matrix composites. Of particular interest in this regard are some recent fibers, such as (1) pure silica fibers derived from water glass, (2) oxynitride glass fibers, having the same high elastic modulus as SM carbon fibers, and (3) Kenaf, as well as other natural plant fibers, which are beginning to find commercial use in selected automotive composites.

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