CSIR-CGCRI, India (2002) A SYNERGISTIC COMPOSITION FOR THE PREPARATION OF SILICON NITRIDE POWDER. IN230986.

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Abstract

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.

Item Type: Patent
Uncontrolled Keywords: SILICON NITRIDE POWDER
Subjects: Ceramic-Metal Systems
Divisions: UNSPECIFIED
Depositing User: Dr Chandana Patra
Date Deposited: 11 Feb 2021 09:29
Last Modified: 11 Feb 2021 09:29
URI: http://cgcri.csircentral.net/id/eprint/5005

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