POLYMERIC HYDRIDOSILAZANES, PROCESSES FOR THE PREPARATION THEREOF, SILICON NITRIDE-CONTAINING CERAMIC MATERIALS WHICH CAN BE PREPARED THEREFROM, AND THE PREPARATION THEREOF

摘要

Abstract of the disclosurePolymeric hydridosilazanes, processes for the preparationthereof, silicon nitride-containing ceramic materialswhich can be prepared therefrom, and the preparationthereofThe invention relates to novel polymeric hydridosilazanes,their preparation, their conversion into silicon nitride-containing ceramic material, and this material itself.To prepare the polymeric hydridosilazanes, polymerichydridothiosilazanes are reacted with NH3. To preparethe silicon nitride-containing ceramic material, thepolymeric hydridosilazanes are then pyrolyzed.