Ba wai kawai yumburan Sic suna da kyawawan halaye na injiniya a zafin ɗaki ba, kamar ƙarfin lanƙwasa mai yawa, juriya mai kyau ga iskar shaka, juriya mai kyau ga tsatsa, juriya mai yawa da ƙarancin gogayya, har ma suna da mafi kyawun halaye na injiniya a zafin jiki mai yawa (ƙarfi, juriya ga tarkace, da sauransu) tsakanin kayan yumbu da aka sani. Yin matsi mai zafi, yin sintering mara matsi, kayan matsi mai isostatic mai zafi, babban halayen silicon carbide shine ƙarfin zafin jiki mai yawa, kayan yumbu na yau da kullun a digiri 1200 ~ 1400 Celsius za a rage su sosai, kuma ƙarfin lanƙwasa silicon carbide a digiri 1400 Celsius har yanzu ana kiyaye shi a matakin mafi girma na 500 ~ 600MPa, don haka zafin aiki zai iya kaiwa digiri 1600 Celsius; Tsarin farantin silicon carbide mai tauri da karyewa, ƙimar faɗaɗawa ƙarami ne, juriya mai sanyi da zafi, ba mai sauƙin lalacewa ba. Silicon carbide shine mafi ƙarancin kauri, don haka sassan yumbu da aka yi da silicon carbide sune mafi sauƙi.
Alumina yumbu wani nau'in alumina ne (Al2O3) a matsayin babban jikin kayan yumbu, wanda ake amfani da shi a cikin da'irori masu kauri da aka haɗa da fim. Tukwanen alumina suna da kyakkyawan juriya, ƙarfin injina da juriyar zafin jiki mai yawa. Ya kamata a lura cewa ana buƙatar wankewa ta ultrasonic. Juriyar lalacewa ta fi ƙarfin ƙarfe manganese sau 266 da kuma sau 171.5 na ƙarfe mai yawan chromium. Alumina yumbu wani nau'in kayan rufi ne mai inganci, wanda galibi ana amfani da shi don yin takardar rufi ta yumbu, zoben rufi da sauran sassa. Tukwanen alumina na iya jure zafin jiki mai yawa har zuwa 1750℃ (ƙarin alumina fiye da 99%).
Lokacin Saƙo: Fabrairu-14-2023