A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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Title |
A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF
SILICON NITRIDE POWDER
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Creator |
BANDYOPADHYAY, S
MAITI, H S |
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Subject |
Ceramic-Metal Systems
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Description |
The present invention relates to a synergistic composition and a
process for the preparation of silicon nitride powder from carbothermal
reduction and nitridation of silica by inventive steps of introducing alpha-
Si N powder simultaneously with some iron in the starting composition 3 4
resulting into a precursor powder after complete reduction and
nitridation containing atleast 90% Si N preferably rich in the alpha- 3 4
phase with the advantages such as cost effectiveness.
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Date |
2002-02-28
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Type |
Patent
NonPeerReviewed |
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Identifier |
CSIR-CGCRI, India (2002) A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER. IN230986.
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Relation |
http://cgcri.csircentral.net/5005/
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