Nitride ya silicon na karubide ya silicon ningirakamaro cyane ya covalent bond, ifite ibintu bisa nkibintu byumubiri nubumara, nitride ya silicon ihujwe nibicuruzwa bya karubide ya silicon hamwe nubushyuhe bukabije, kurwanya ruswa, kurwanya isuri, kurwanya okiside hamwe nuruhererekane rwibintu byiza cyane. Silicon nitride na silicon karbide nkibikoresho byo murwego rwohejuru rwo mu kirere mu kirere gitandukanye ubushyuhe busanzwe bwo gukoresha burashobora kugera kuri 1500 ℃ cyangwa irenga, bikoreshwa cyane mububumbyi bw’ubutaka, ibyuma bitagira fer, ibyuma n’ibyuma, ifu y’ibyuma, inganda z’inganda n’inganda.
Nitride ya Silicon ihujwe nibikoresho bya karubide ya silicon hamwe nicyuma kitari ferrous ntabwo byinjira, kandi bifite imiterere myiza yo kubika, bityo ikoreshwa cyane mugikorwa cyo gukora ibyuma bidafite fer nka aluminium, umuringa na zinc, cyane cyane ibikoresho byiza kuri umusaruro wa electrolytike selile kuruhande rwurukuta rwamatafari.
| Ingingo | Indangantego ya Firebrick | Itanura | Ironderero ryibicuruzwa byakozwe |
| Ikigaragara（%） | <16 | <16 | <14 |
| Ubucucike bwinshi（g / cm3） | 2 2.65 | 2 2.65 | 2 2.68 |
| Imbaraga zo kwikuramo ubushyuhe bwicyumba（MPa） | 2 160 | 2 170 | 2 180 |
| Kunama imbaraga mubushyuhe bwicyumba（1400X：） MPa | 2 40 | 2 45 | 2 45 |
| Ubushyuhe bwo hejuru bwo kugonda imbaraga（1400r） MPa | 2 50 | 2 50 | 2 50 |
| Coefficient yo kwagura ubushyuhe（110CTC）xioVC | <4.18 | <4.18 | <4.18 |
| Amashanyarazi（1100C） | 216 | 2 16 | 216 |
| Amashanyarazi（°C ） | 1800 | 1800 | 1800 |
| 0.2 MPa Korohereza ubushyuhe munsi yumutwaro（X：） | 1600 | 1600 | > 1700 |
| Ubushyuhe ntarengwa bwo gukora（°C） | 1550 | 1550 | 1550 |
