硅(gui)(gui)大量(liang)用(yong)(yong)于(yu)(yu)冶煉(lian)成硅(gui)(gui)鐵合(he)(he)金(jin)作鋼鐵工(gong)(gong)業中(zhong)(zhong)合(he)(he)金(jin)元(yuan)(yuan)素，在(zai)(zai)很(hen)多(duo)(duo)種(zhong)金(jin)屬冶煉(lian)中(zhong)(zhong)作還原劑(ji)(ji)。硅(gui)(gui)還是鋁(lv)合(he)(he)金(jin)中(zhong)(zhong)的(de)(de)(de)良(liang)好(hao)組元(yuan)(yuan)，絕大多(duo)(duo)數鑄造(zao)鋁(lv)合(he)(he)金(jin)都(dou)含有(you)硅(gui)(gui)。硅(gui)(gui)是電(dian)(dian)(dian)子(zi)工(gong)(gong)業超純硅(gui)(gui)的(de)(de)(de)原料，超純半導(dao)體(ti)單(dan)晶(jing)硅(gui)(gui)做的(de)(de)(de)電(dian)(dian)(dian)子(zi)器(qi)件(jian)具有(you)體(ti)積小(xiao)、重量(liang)輕(qing)、可靠性好(hao)和(he)壽命長等(deng)(deng)(deng)優(you)(you)點。摻有(you)特定(ding)微量(liang)雜(za)質的(de)(de)(de)硅(gui)(gui)單(dan)晶(jing)制成的(de)(de)(de)大功率晶(jing)體(ti)管(guan)、整流器(qi)及(ji)(ji)太(tai)陽能(neng)(neng)電(dian)(dian)(dian)池，比用(yong)(yong)鍺單(dan)晶(jing)制成的(de)(de)(de)好(hao)。非(fei)晶(jing)硅(gui)(gui)太(tai)陽能(neng)(neng)電(dian)(dian)(dian)池研(yan)究進展很(hen)快，轉換率達(da)到了8%以上。硅(gui)(gui)鉬(mu)棒電(dian)(dian)(dian)熱元(yuan)(yuan)件(jian)使用(yong)(yong)溫(wen)度可達(da)1700℃，具有(you)電(dian)(dian)(dian)阻(zu)不(bu)(bu)(bu)易(yi)老化(hua)(hua)和(he)良(liang)好(hao)的(de)(de)(de)抗(kang)氧(yang)化(hua)(hua)性能(neng)(neng)。用(yong)(yong)硅(gui)(gui)生產的(de)(de)(de)三氯氫(qing)硅(gui)(gui)，可配制幾百種(zhong)硅(gui)(gui)樹脂(zhi)潤滑(hua)劑(ji)(ji)和(he)防(fang)水化(hua)(hua)合(he)(he)物等(deng)(deng)(deng)。此外，碳化(hua)(hua)硅(gui)(gui)可作磨料，高純氧(yang)化(hua)(hua)硅(gui)(gui)制作的(de)(de)(de)石(shi)英管(guan)是高純金(jin)屬冶煉(lian)及(ji)(ji)照明燈具的(de)(de)(de)重要材(cai)(cai)料。八十(shi)年代(dai)的(de)(de)(de)紙張——硅(gui)(gui)人們稱硅(gui)(gui)為“八十(shi)年代(dai)的(de)(de)(de)紙張”。這是因為紙張只(zhi)能(neng)(neng)記錄信息，而硅(gui)(gui)不(bu)(bu)(bu)僅(jin)能(neng)(neng)記載信息，還能(neng)(neng)對信息進行處理加工(gong)(gong)以獲得(de)新的(de)(de)(de)信息。1945年制造(zao)的(de)(de)(de)世界上電(dian)(dian)(dian)子(zi)計算(suan)機(ji)，裝有(you)18000個(ge)電(dian)(dian)(dian)子(zi)管(guan)、70000只(zhi)電(dian)(dian)(dian)阻(zu)、10000只(zhi)電(dian)(dian)(dian)容(rong)，整個(ge)機(ji)器(qi)重30噸，占地170平方米，相當于(yu)(yu)10間房子(zi)大小(xiao)。而今天的(de)(de)(de)電(dian)(dian)(dian)子(zi)計算(suan)機(ji)，由于(yu)(yu)技術的(de)(de)(de)進步(bu)和(he)材(cai)(cai)質的(de)(de)(de)改善(shan)，在(zai)(zai)一(yi)個(ge)指甲(jia)蓋大小(xiao)的(de)(de)(de)硅(gui)(gui)片上，可以容(rong)納上萬個(ge)晶(jing)體(ti)管(guan)；并(bing)且有(you)輸入、輸出、運算(suan)、存儲和(he)控制信息等(deng)(deng)(deng)一(yi)系列功能(neng)(neng)。微孔硅(gui)(gui)鈣(gai)保溫(wen)材(cai)(cai)料微孔硅(gui)(gui)鈣(gai)保溫(wen)材(cai)(cai)料是一(yi)種(zhong)優(you)(you)良(liang)的(de)(de)(de)保溫(wen)材(cai)(cai)料。它具有(you)熱容(rong)量(liang)小(xiao)、機(ji)械強度高、導(dao)熱系數低、不(bu)(bu)(bu)燃燒、無(wu)毒無(wu)味、可切(qie)割、運輸方便等(deng)(deng)(deng)特點，可廣(guang)泛(fan)用(yong)(yong)于(yu)(yu)冶金(jin)、電(dian)(dian)(dian)力、化(hua)(hua)工(gong)(gong)、船舶(bo)等(deng)(deng)(deng)各種(zhong)熱力設備及(ji)(ji)管(guan)道(dao)上。經測試，節能(neng)(neng)效益優(you)(you)于(yu)(yu)石(shi)棉、水泥、蛭石(shi)和(he)水泥珍珠巖等(deng)(deng)(deng)保溫(wen)材(cai)(cai)料。特種(zhong)硅(gui)(gui)鈣(gai)材(cai)(cai)料可用(yong)(yong)作催化(hua)(hua)劑(ji)(ji)載體(ti)，在(zai)(zai)石(shi)油(you)煉(lian)制、汽車尾氣凈(jing)化(hua)(hua)等(deng)(deng)(deng)多(duo)(duo)方面廣(guang)泛(fan)應用(yong)(yong)。

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