Izitini ze-Si3N4-SiC

Lo mkhiqizo waqala ukuvela ngasekupheleni kwawo-1960, futhi isici sawo ukuthi usebenzisa i-Si3N4 njengesibophezelo. I-Si3N4 ikhona phakathi kwezinhlamvu ze-SiC ngendlela yamakristalu afana nenaliti noma ama-fibrous, futhi iwuhlobo olusha olubalulekile lwezinto eziphikisayo. Ngokuvamile iqukethe u-70% kuya ku-75% we-silicon carbide kanye no-18% kuya ku-25% we-silicon nitride. Inokumelana nokugqwala okuhle, amandla aguquguqukayo angu-1400 ℃ angu-50 kuya ku-55MPa, kanye ne-porosity ebonakalayo engu-15%. I-coefficient yokwandisa okushisayo (4.5 ukuya ku-5.0) × 10-2℃-1. Ilungiswa ngendlela yokushisa ephezulu ye-sintering. Isetshenziselwa ikakhulukazi i-blast furnace tuyere kanye ne-aluminium electrolytic cell lining. Eminyakeni yamuva, inkampani yethu isebenzise izitini ze-silicon nitride eziboshelwe i-silicon carbide emlonyeni we-silicon ore esithandweni somlilo kanye nesikhwama samanzi se-silicon, esithuthukisa kakhulu impilo yesithando nempilo yesevisi yesikhwama samanzi se-silicon.