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~700 cm-1波长范围发生宽化,在1 100~900 cm-1和500~400 cm-1波长范围内发生分裂;玻璃结构中的[FeO4]向[FeO6]转化促进玻璃的析晶,出现BaFe12O19的红外特征吸收峰. 关键词:铁尾矿;微晶玻璃;BaFe12O19;晶化过程 中图分类号:TB 321 文献标识码:A Crystallization... as starting material. The crystallization process and microstructure of the glass-ceramic were investigated using differential scanning calorimetry (DSC), X-ray powder diffraction(XRD), scanning electron......
): 1601-1610. DOI: 10.11817/j.ysxb.1004.0609.2021-36596 XIONG Jia-cheng, LI Cun-xiong, ZHANG Li-bo, et al. Hydrothermal crystallization of magnesium in zinc hydrometallurgical process[J]. The Chinese Journal... Metals, 2017(23): 5-6. [3] 孙红燕, 森 维, 孔 馨. 钙镁结晶对湿法炼锌生产系统的影响研究[J]. 轻金属, 2016(1): 42-45. SUN Hong-yan, SEN Wei, KONG Xin. Effect of calcium and magnesium crystallization on zinc hydrometallurgy......
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Graphite Crystallization in Ductile IronKozlov L.Ya,Vorobyev A.P摘 要:<正> The authors studied effect of cerium and lanthanum on crystallization... in crystallization pattern of iron is due to theREM effect on graphite nucleation and growth.On the basis of microprobe analysis of REM distribution and theDTA results,a mechanism of the REM effect......
连铸结晶器保护渣渣膜结晶特性的研究进展 杨波1,唐萍1,文光华1,于雄1 (1.重庆大学材料科学与工程学院,重庆,400044) 摘要:连铸结晶器保护渣的结晶特性对铸坯与结晶器之间的传热有重要影响,合理控制保护渣的结晶行为能有效提高包晶钢铸坯表面质量.保护渣的结晶特性主要包括保护渣的结晶温度,结晶率,结晶矿相以及渣膜表面粗糙度等.主要综述了影响保护渣结晶特性的主要因素及结晶过程的研究方法并就保护渣结晶特性的研究方向提出了几点建议. 关键词:保护渣; 结晶温度; 结晶率; 结晶矿相; mold flux; crystallization temperature; crystallization ratio; mineralogical phase; [全文内容正在添加中] ......
.结果表明:CuYSi颗粒生成后,复合材料的变温晶化行为依然具有动力学效应,但生成的CuYSi颗粒减小了复合材料玻璃转变行为对升温速率的依赖程度;同时,颗粒的生成增加了复合材料发生玻璃转变以及起始晶化时所需要克服的能量势垒,提高了材料的热稳定性;局域晶化激活能随着复合材料晶化体积分数的增加而减小.关键词:块体非晶合金复合材料;晶化动力学;激活能Crystallization behavior... on crystallization behavior of the bulk amorphous alloy was studied by Kissinger’s and Deloy’s method. The results show that the kinetics effect on crystallization behavior is preserved for both Mg60Cu30Y10......
secondary battery were prepared via a controlled crystallization method. Under the preparation conditions, when metal salt solution flow rate was 8 mL/min, stirring speed was 450 r/min, pH value...: LiNi0.8Co0.2O2; cathode material; controlled crystallization method 锂离子电池正极材料......
Crystallization of amorphous Zr70Cu30-xNix alloysWANG Huanrong, YE Yifu, HUI Xidong MIN Guanghui, TENG Xinying and SHI Zhiqiang Key Laboratory of Liquid Structure and Heredity of Materials, Ministry...) and differential scanning calorimetry (DSC) were employed to investigate the influence of Ni content on the crystallization of amorphous Zr70,Cu30-xNi, (atom fraction in %) alloys. Experimental results show......
Kinetics of Glass Transition and Crystallization in Carbon Nanotube Reinforced Mg-Cu-Gd Bulk Metallic Glass Sun Yufeng1,Wei Bingchen2,Wang Yinchun2,Wang Yuren2,Li Weihuo2 (1.Research Center...:Mg65Cu25Gd10 bulk metallic glass and its carbon nanotube reinforced composite were prepared. Differential scanning calorimeter (DSC) was used to investigate the kinetics of glass transition and crystallization......