Pilikia Si3N4-SiC

Ua ʻike mua ʻia kēia huahana i ka hopena o nā makahiki 1960, a ʻo kona ʻano ʻo ia ka hoʻohana ʻana iā Si3N4 i mea hoʻopili. Aia ʻo Si3N4 ma waena o nā kīʻaha SiC ma ke ʻano o ka nila a i ʻole nā ​​aniani fibrous, a he ʻano koʻikoʻi hou o nā mea refractory. Loaʻa iā ia ka 70% a 75% silicon carbide a me 18% a 25% silicon nitride. Loaʻa iā ia ke kūpaʻa corrosion maikaʻi, 1400 ℃ ikaika flexural o 50 a 55MPa, a me ka porosity o 15%. Koefficient hoʻonui wela (4.5 a 5.0) × 10-2 ℃-1. Hoʻomākaukau ʻia e ke ʻano sintering kiʻekiʻe. Hoʻohana nui ia no ka blast furnace tuyere a me ka alumini electrolytic cell lining. I kēia mau makahiki i hala iho nei, ua hoʻohana kā mākou hui i ka silicon nitride i hoʻopaʻa ʻia i ka silicon carbide bricks i ka ʻoihana silicon ore furnace waha a me ka ʻeke wai silika, kahi e hoʻomaikaʻi nui ai i ke ola o ka umu a me ke ola lawelawe o ka ʻeke wai silika.