Si3N4 Bonded silicon carbide brick is a different type of refractory content, in which Si3N4 exists between SiC grains in needle-formed or fibrous crystalline form. GA's engineered ATF rod cladding is usually a multi-layered composite design made up of SiC fiber inside of a SiC matrix. The ATF program was http://jeffreyivkh611.tearosediner.net/15-people-you-oughta-know-in-the-conductivity-of-silicon-carbide-industry