Lub hardness ntawm silicon carbide sib tsoo lub tog raj kheej yog thib ob tsuas yog pob zeb diamond, thiab lub neej kev pab cuam yog 5-10 npaug ntawm cov khoom siv dav dav. Nws muaj siab hardness, siab zog thiab zoo thermal conductivity. Tom ntej no, kuv yuav qhia cov ncauj lus kom ntxaws txog kev tshem tawm impurities hauv silicon carbide sib tsoo lub tog raj kheej.
1. Ua ntej, cia's tham txog pickling. Pickling feem ntau yog ua ntawm silicon carbide nrog sulfuric acid nyob rau hauv cov cua kub. Lub hom phiaj tseem ceeb yog tshem tawm cov hlau hlau, hlau oxide, magnesium, txhuas thiab lwm yam impurities hauv silicon carbide, kom cov silicon carbide sib tsoo lub tog raj kheej tuaj yeem raug tshem tawm kom huv thiab sai.
2. Qhov thib ob yog alkaline ntxuav. Cov alkaline ntxuav ntawm silicon carbide feem ntau yog nyob rau hauv cov cua kub, silicon carbide yog kho nrog NAOH, lub hom phiaj tseem ceeb yog tshem tawm silicon dawb, silicon dioxide, thiab lwm yam nyob rau saum npoo ntawm silicon carbide sib tsoo lub tog raj kheej, thiaj li mus nce cov ntsiab lus. ntawm silicon carbide thiab ntxiv dag zog rau nws Cov ntsiab lus ntawm silicon carbide.
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