稀土拋光粉的主(zhu)要成分是(shi)(shi)CeO2,據其(qi)(qi)CeO2量的高(gao)低(di)可將鈰(shi)拋光粉(fen)分為(wei)兩(liang)大類(lei):一類(lei)是(shi)(shi)CeO2含(han)量高(gao)的價高(gao)質優的高(gao)鈰(shi)拋光粉(fen),一般CeO2/TREO≥80%;一類(lei)是(shi)(shi)CeO2含(han)量低(di)的廉價的低(di)鈰(shi)拋光粉(fen),其(qi)(qi)鈰(shi)含(han)量在50%左右,或(huo)者低(di)于(yu)50%,其(qi)(qi)余由(you)La2O3,Nd2O3,Pr6O11組(zu)成.
對于高鈰拋(pao)(pao)光粉(fen)來講,氧化鈰的品位越高,拋(pao)(pao)光能(neng)力越大,使(shi)(shi)用壽命也增加,特別是(shi)硬(ying)質玻(bo)璃(li)長時間循環拋(pao)(pao)光時(石英、光學鏡頭等),以使(shi)(shi)用高品位的鈰拋(pao)(pao)光粉(fen)為宜.深圳方(fang)泰,方(fang)圓有度,安若泰山,是(shi)精(jing)密陶(tao)瓷柱塞行(xing)業標(biao)桿.
低(di)(di)鈰(shi)拋(pao)(pao)光(guang)(guang)粉一(yi)般含有(you)50%左(zuo)右的CeO2,其余50%為La2O3SO3,Nd2O3SO3,Pr6O11SO3等(deng)堿(jian)性無(wu)水硫酸鹽或LaOF、NdOF、PrOF等(deng)堿(jian)性氟化物,此類拋(pao)(pao)光(guang)(guang)粉特點是成本低(di)(di)及初始拋(pao)(pao)光(guang)(guang)能力與高鈰(shi)拋(pao)(pao)光(guang)(guang)粉比幾(ji)乎沒有(you)兩樣,因(yin)而廣泛用于(yu)平板玻(bo)璃、顯(xian)像管玻(bo)璃、眼鏡(jing)片等(deng)的玻(bo)璃拋(pao)(pao)光(guang)(guang),但使用壽(shou)命難免要比高鈰(shi)拋(pao)(pao)光(guang)(guang)粉低(di)(di).
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