NEW MATERIAL BASED ON BORON NITRIDE,ITS PROCESS OF PREPARATION AND ITS USE AS A REINFORCING AGENT

摘要

New boron nitride-based material characterised in that it has an essentially fibrillar morphology. The process for the preparation of such a material is characterised in that at least one nitride of alkali or alkaline-earth metals is reacted in a molten salts bath with at least one boron compound capable of being converted into boron nitride by the said nitride of alkali or alkaline-earth metals in the said molten salts bath. The product according to the invention finds an application as an agent for reinforcing composite materials.