摘要:
A siliconized boron carbide composite material is made by infiltrating molten silicon metal into a porous mass including boron carbide. The porous mass contains little or no reactable carbon. The infiltration is designed and intended such that the infiltrant is substantially non-reactive with the constituents of the porous mass. The composite body so formed contains boron carbide and silicon metal, but substantially no silicon carbide formed in-situ from a reaction of the silicon metal with a carbon source. Such siliconized boron carbide composite materials have utility in armor applications.
摘要:
In a method for producing ceramic body by oxidation of a parent metal having a graded microstructure characterized by a plurality of zones differing from each other in one or more properties by altering the process conditions during formation of said ceramic body such that a zone of the oxidation reaction product formed posterior to said altering has one or more properties different from a zone of the oxidation reaction product formed anterior to said altering.
摘要:
In a method for producing ceramic body by oxidation of a parent metal having a graded microstructure characterized by a plurality of zones differing from each other in one or more properties by altering the process conditions during formation of said ceramic body such that a zone of the oxidation reaction product formed posterior to said altering has one or more properties different from a zone of the oxidation reaction product formed anterior to said altering.
摘要:
In a method for producing ceramic body by oxidation of a parent metal having a graded microstructure characterized by a plurality of zones differing from each other in one or more properties by altering the process conditions during formation of said ceramic body such that a zone of the oxidation reaction product formed posterior to said altering has one or more properties different from a zone of the oxidation reaction product formed anterior to said altering.