METHOD FOR MAKING A PYROLYTIC BORON NITRIDE ARTICLE
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jun 3, 2011
filing date -
Jun 3, 2011
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Abandoned
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Abstract
A method for producing a pyrolytic boron nitride (PBN) article comprises introducing a nitrogen containing gas and a boron containing gas into a heated reactor furnace under temperature and pressure conditions sufficient to form a PBN deposit and pulsing the flow of the reactant gases between an on and an off state. The method provides a multi-layered PBN article that exhibits a relatively weak bonding interface between adjacent PBN layers to allow for the layers to be peeled away from one another in a controlled manner.
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