Cov Khoom Siv Tshuaj thiab Cov Qauv Txuj Ci Thoob Ntiaj Teb Ntawm Emery tau qhia

Silicon carbide feem ntau hu ua emery, tshuaj formula SiC, tsis muaj xim siv lead ua, muaj impurities thaum xiav dub. Cov qauv zoo ib yam li pob zeb diamond, nrog rau txhua lub silicon atom ncig los ntawm plaub carbon atoms thiab txhua carbon atom ncig los ntawm plaub silicon atoms, tsim "megamolecules". Lub hardness yog thib ob rau pob zeb diamond, qhov ceev yog 3.217 g / cm3, thiab melting point yog hais txog 2700 degree (decomposition sublimation). Cov khoom siv tshuaj muaj zog ruaj khov, thiab nws tsis hnov ​​​​mob nrog cov tshuaj chlorine, oxygen, sulfur, thiab cov kua qaub muaj zog ntawm qhov kub thiab txias, tab sis tuaj yeem cuam tshuam nrog cov hauv paus.
Chemically ruaj khov silicon carbide feem ntau tsis tuaj yeem tsim cov pa roj carbon dioxide thiab carbon monoxide.
1, compressive zog MPa 7d Ntau dua los yog sib npaug rau 60
28d Ntau dua lossis sib npaug rau 70
2, cuam tshuam tsis kam MPa 7d Ntau dua lossis sib npaug rau 8
28d Ntau dua lossis sib npaug rau 9.5
3, Mohs zog Ntau dua los yog sib npaug rau 8
4, hnav-tiv taus zoo poob mg 1000R / 500g Tsawg dua lossis sib npaug rau 3000