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A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Field Value
 
Title A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER
 
Creator BANDYOPADHYAY, S
MAITI, H S
 
Subject Ceramic-Metal Systems
 
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.
 
Date 2002-02-28
 
Type Patent
NonPeerReviewed
 
Identifier CSIR-CGCRI, India (2002) A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER. IN230986.
 
Relation http://cgcri.csircentral.net/5005/