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为 9.92.X射线衍射分析表明 :焙烧过程中高岭石发生热分解产生的非晶态SiO2 , 在碱浸溶出脱硅过程中溶于NaOH脱除.高压溶出试验表明 :脱硅铝精矿中Al2 O3 的溶出率比原矿要高. 关键词: 一水硬铝石型铝土矿;化学选矿;脱硅; 中图分类号: TF046 收稿日期:1999-12-18 基金:国家"973"计划资助!项目... + SiO2 (amorphism) (4) 式中 2Al2O3·3SiO2为松散的假结晶铝硅尖晶石. 2 A l......
] FOULADI S, ABBASI M. The effect of friction stir vibration welding process on characteristics of SiO2 incorporated joint [J]. Journal of Materials Processing Technology, 2017, 243: 23-30. [27......
化温度的进一步提升,硅灰石相的衍射强度又有所减弱,这可能是由于硅灰石相变驱动力减小,结晶率又趋于下降. 3 结论 1) 采用铜熔渣还原沉铁,控制熔渣组分中的铁氧化物,SiO2和CaO的含量,直接注模,快速冷凝成型的方法可以制得成型的玻璃陶瓷; 2) 富铁矿渣制备的玻璃陶瓷中,磁铁矿的核化可以在晶化热处理升温过程中完成,核化速度较快,所以预核化处理在富铁矿渣制备玻璃陶瓷的晶化过程中无明显......
, HOSOULI S, AHMADIYEH S, RASOOLI A. Pulse and direct electrodeposition of Ni-Co/micro and nanosized SiO2 particles [J]. Materials and Manufacturing Processes, 2018, 33: 1067-1079. [6] HASHEMI M......
increase is observed for the films deposited on SiO2 substrate, although their morphology changes are the same as those of the films deposited on MgO (001) single crystal. Considering that the continuous polycrystalline films deposited on SiO2 polycrystalline substrate have real grain boundaries, a high Hc of >1 034.8 kA/m is obtained in those kinds of continuous films due......