Process fo the production of Si.sub.2 N.sub.4 using a silicon, p

Process for direct nitriding of metals of low melting point

Process for growing silicon carbide whiskers by undercooling

Process for making silane

Process for making silicon nitride whisker

Process for manufacturing silane

Process for nitriding silicon containing materials

Process for preparation of high-type silicon nitride powder

Process for preparation of silane

Process for preparation of silane

Process for preparing an alpha-phase silicon nitride material an

Process for preparing ceramic fibers

Process for preparing disilane by using molecular sieves

Process for preparing fine fibers

Process for preparing high-purity .alpha.-type silicon nitride

Process for preparing refractory borides and carbides

Process for preparing silicon carbide fibers

Process for preparing silicon carbide foam

Process for preparing silicon carbide powder for use in semicond

Process for preparing silicon carbide whiskers