| Thermodynamic analysis and preparation of β-SiC/ZrO_2 composites |
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| 作者单位： | School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
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| 基金项目： | supported by the National Natural Science Foundation of China (No.50274021)and Baoshan Iron and Steel Co. Ltd |
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| 摘 要： | A predominance area diagram for the Zr-Si-C-O system at 1773 K was plotted according to correlative thermodynamic data.β-SiC/ZrO2 composites were prepared based on the phase diagram by carbothermal reduction of zircon(ZrSiO4) in argon atmosphere.Zircon and carbon black were mixed according to the C/ZrSiO4 mass ratio of 0.2,and with 0,1wt% and 2wt% extra addition of La2O3.Phase evolution of the mixture was investigated at 1723-1803 K by X-ray powder diffraction,and the microstructure of the product prepared ...
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| 关 键 词： | 复合材料 热力学分析 X射线衍射分析 电子显微镜观察 制备 产品样本 碳热还原 热力学数据 |
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