He aha nā waiwai o ka silikon carbide?
1. ʻO ka hilinaʻi maikaʻi.
ʻO ka paila i loko o ka sulfuric acid, hydrochloric acid a me hydrofluoric acid ʻaʻole maʻalahi ke kālai ʻia. ʻAʻole ʻae ʻo SiC me ka magnesium chloride i ka wela kiʻekiʻe, no laila ke kūpaʻa maikaʻi ʻo ia i ke koena waikawa. Hoʻomaka mālie ka hopena ma waena o SIC a me ka pauka lime ma 525 a ʻike ʻia ma kahi o 1000, ʻoiai ʻo ka hopena ma waena o SIC a me ka copper oxide e ulu aʻe ma 800. Ma 1000-1200 ua ʻike ʻia me ka hao hao, a ma 1300 ua ʻoki nui ʻia. Ua hoʻololi iki ka pane me ka chromium oxide mai 1360 degere a hiki i ka hāhā. I loko o ka hydrogen, ʻike ʻia ka carbide silika mai 600 me ia, ma 1200 i hoʻololi ʻia i loko o ka silicon tetrachloride a me ka carbon tetrachloride. Hiki ke hoʻoheheʻe ka alkali hoʻoheheʻe iā SiC i ke kuni kiʻekiʻe.
2. Ke kū'ē i ka oxidation
Silicon carbide maikaʻi oxidation kū'ē i loko o ka lumi wela, a me ke koena silika, kalapona a me ka hao oxide i ka hopena i ka ea oxidation pae o ka silikona carbide. Hiki ke hoʻohana pono ʻia ka carbide silika maʻemaʻe i loko o ka lewa oxidation ea maʻamau o 1500, a ʻo ka carbide silicon me kekahi koena e oxidized i 1220.
3, maikaʻi thermal haʻalulu kū'ē.
ʻO ka porcelain Silicon carbide no ka mea ma ka hoʻomau ʻana i ka wela kiʻekiʻe ʻaʻole e hoʻoheheʻe a hoʻoheheʻe i ka mahu, ʻoi aku ka maikaʻi o ke kūʻē ʻana i ka haʻalulu wela, a he kiʻekiʻe ka wela wela a me ke kī haʻahaʻa.