Spray deposition of silicon powder structures
Abstract
Abstract SPRAY DEPOSITION OF SILICON POWDER BY PROJECTION FROM A FLAME GUN ON TO A PREHEATED FORMER, WHICH MAY BE CAPABLE OF BEING ROTATED OR RECIPROCATED TO FACILITATE CONTINUOUS AND EVEN DEPOSITION OF SILICON POWDER ON THE FORMER. THE FORMER MAY BE FORMED OF SILICON OR SILICON NITRIDE, IN WHICH CASE BOTH THE FORMER AND THE SILICON COMPACT, FORMED THEREON BY THE PROJECTED POWDER ARE HEATED IN AN ATMOSPHERE OF NITROGEN OR AMMONIA TO CONVERT THE SILICON TO SILICON NITRIDE. AS AN ALTERNATIVE, THE FORMER IS COATED WITH A SOLUBLE RELEASE AGENT BEFORE SPRAYING AND THE FORMER AND COMPACT FORMED THEREON ARE IMMERSED IN A SOLVENT TO DISSOLVE THE SOLUBLE RELEASE AGENT TO RELASE THE COMPACT, WHICH IS THEN HEATED IN AN ATMOSPHERE OF NITROGEN OR AMMONIA TO CONVERT THE SILICON TO SILICON NITRIDE.
Inventors
- 👤 Norman Lawrence Parr
- 👤 Robin Lawford Brown
Bibliographic Details
Claims Analysis
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