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硼化鑭  
單價 面議對比
詢價 暫無
發(fā)貨 江蘇蘇州市付款后24小時內(nèi)
過期 長期有效
更新 2013-10-14 08:46
 
詳細(xì)信息

硼化鑭  
六硼化鑭;lanthanum hexaboride   分子式:LaB6   性質(zhì):紅紫色固體。等軸晶系。密度2.61g/cm3。熔點2210℃。高于熔點則分解。常溫下不溶于水和酸。將三氧化二鑭及硼砂溶解在一種合適的熔鹽里,并在高溫下利用石墨陽極電解,將六硼化鑭沉積在石墨或鋼制的陰極上。由于具有熔點高、熱電子放射性能高的特點,在核聚變反應(yīng)堆、熱電子發(fā)電等方面可替代高熔點金屬和合金。
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