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碳热还原ZrSiO4制备ZrO2（Y2O3）粉末和SiC纳米粉末
PREPARATION OF ZrO2 （Y2O3） POWDER AND SiC NANOPOWDER BY CARBOTHERMAL REDUCTION OF ZrSiO4
【Abstract】 ZrO 2(Y 2O 3) powder and SiC nanopowder were prepared by carbothermal reduction of ZrSiO 4. With the existence of additive Y 2O 3 and other impurities, ZrSiO 4 was dissociated into ZrO 2 and SiO 2 in the condition of 1450—1550?℃. ZrO 2(Y 2O 3)powder was thus obtained via the removal of SiO 2 as silicon oxide (SiO) gas during carbothermal reduction process. SiC nanopowder and small amount of SiC whisker were synthesized form the gas-phase reaction between SiO vapor and supplied CH 4 gas.
【关键词】 ZrSiO4；
碳热还原；
ZrO2（Y2O3）粉末；
SiC纳米粉末；
【Key words】 ZrSiO 4； carbothermal reduction； ZrO 2 (Y 2O 3) powder； SiC nanopowder；
【Key words】 ZrSiO 4； carbothermal reduction； ZrO 2 (Y 2O 3) powder； SiC nanopowder；
- 【文献出处】 化工学报 ,Journal of Chemical Industry and Engineering(China) , 编辑部邮箱 ,2001年01期
- 【分类号】TQ174
- 【被引频次】5
- 【下载频次】63