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氧化鐵

關(guān)鍵詞 氧化鐵|2011-06-23 14:59:38|基礎(chǔ)知識(shí)|來(lái)源 中國(guó)磨料磨具網(wǎng)
摘要 爐料中含微量氧化鐵能促進(jìn)碳化硅晶體長(zhǎng)大,并能少量提高爐產(chǎn)量,含量達(dá)1.5%時(shí)產(chǎn)量最大。但鐵含量愈高,碳化硅加工成品率愈下降,并使制成的磨具發(fā)紅,產(chǎn)生鐵斑廢品。因此,從經(jīng)濟(jì)觀點(diǎn)出發(fā),...
  爐料中含微量氧化鐵能促進(jìn)碳化硅晶體長(zhǎng)大,并能少量提高爐產(chǎn)量,含量達(dá)1.5%時(shí)產(chǎn)量最大。但鐵含量愈高,碳化硅加工成品率愈下降,并使制成的磨具發(fā)紅,產(chǎn)生鐵斑廢品。因此,從經(jīng)濟(jì)觀點(diǎn)出發(fā),希望爐料中含鐵愈少愈好。
  鐵的存在不影響綠碳化硅的顏色,即使在結(jié)晶筒外層已經(jīng)發(fā)紅,碳化硅晶體本身也能保持原有綠色。
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