Silicon nitride da silicon carbide suna da ƙarfi sosai a cikin haɗin covalent, suna da halaye iri ɗaya na jiki da sinadarai, silicon nitride tare da samfuran silicon carbide tare da juriya mai zafi, juriya ga tsatsa, juriya ga lalacewa, juriya ga zaizayar ƙasa, juriya ga iskar shaka da kuma jerin kyawawan halaye. Silicon nitride da silicon carbide a matsayin kayan kariya masu inganci a cikin yanayi daban-daban, zafin amfani na yau da kullun na iya kaiwa 1500 ℃ ko makamancin haka, ana amfani da su sosai a cikin yumbu, ƙarfe, ƙarfe da ƙarfe, ƙarfe, masana'antar ƙarfe, masana'antar sinadarai da sauran masana'antu.
Sinadarin silicon nitride wanda aka haɗa shi da silicon carbide da ƙarfe marasa ƙarfe ba sa shiga ciki, kuma yana da kyawawan kaddarorin kariya, don haka ana amfani da shi sosai a cikin tsarin samar da ƙarfe marasa ƙarfe kamar aluminum, jan ƙarfe da zinc, musamman kayan da suka dace don samar da tubalin rufin bango na sel na electrolytic.
| Abu | Ma'aunin Wutar Wuta | Bayanin murhu | Ma'aunin samfurin da aka siffanta |
| A bayyane yake cewa akwai ramuka(%） | <16 | <16 | <14 |
| Yawan yawa(g/cm3） | 2 2.65 | 2 2.65 | 2 2.68 |
| Ƙarfin matsi a zafin ɗaki(MPa） | 2 160 | 2 170 | 2 180 |
| Ƙarfin lanƙwasawa a zafin ɗaki(1400X:） MPa | 2 40 | 2 45 | 2 45 |
| Ƙarfin lanƙwasawa mai zafi sosai(1400r） MPa | 2 50 | 2 50 | 2 50 |
| Ma'aunin faɗaɗawar zafi(110CTC）xioVC | <4.18 | <4.18 | <4.18 |
| Maida wutar lantarki ta thermal(1100C） | 216 | 2 16 | 216 |
| Masu hana ruwa(°C ） | 1800 | 1800 | 1800 |
| 0.2 MPa Zafin laushi a ƙarƙashin kaya(X） | 1600 | 1600 | > 1700 |
| Matsakaicin zafin aiki(°C） | 1550 | 1550 | 1550 |
