Tubalin Si3N4-SiC

Wannan samfurin ya fara bayyana a ƙarshen 1960s, kuma halayensa shine yana amfani da Si3N4 a matsayin mai ɗaure. Si3N4 yana wanzu tsakanin hatsin SiC a cikin nau'in lu'ulu'u masu nau'in allura ko fibrous, kuma sabon nau'in nau'in kayan haɓaka ne mai mahimmanci. Gabaɗaya ya ƙunshi 70% zuwa 75% silicon carbide da 18% zuwa 25% silicon nitride. Yana yana da kyau lalata juriya, 1400 ℃ flexural ƙarfi na 50 zuwa 55MPa, da kuma bayyana porosity na 15%. Ƙididdigar faɗaɗawar thermal (4.5 zuwa 5.0) × 10-2℃-1. An shirya shi ta hanyar yanayin zafin jiki mai girma. An fi amfani da shi don fashewa tanderu tuyere da aluminum electrolytic cell rufi. A cikin 'yan shekarun nan, mu kamfanin ya shafi silicon nitride bonded silicon carbide tubalin zuwa masana'antu silicon tanderun makera bakin da silicon ruwa jakar, wanda ƙwarai inganta tanderun rayuwa da kuma rayuwar sabis na silicon ruwa jakar.