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of titanium-bearing slag [J]. International Journal of Minerals, Metallurgy and Materials, 2016, 23: 868-880. [21] KIM G H, SOHN I. A study of the viscous properties with NaF additions in the CaO-SiO2-12......
a method for treating SPL at high temperature [19]. Adequate water is introduced to hydrolyze fluoride and cyanide at 1100-1350 °C to form HF gas and gaseous NaF. The residue contains sodium oxide......
度为924 ℃,偏差为±2 ℃. 1.2 化学试剂和电极材料 实验所用的电解质组成为NaF 43%,AlF3 39%,CaF2 5%,Al2O3 3%,NaCl 10%的混合物,该电解质的分子比为2.2,液相线温度为904.2 ℃.电解质质量为2 kg,熔化后的液面高度约为5 cm.化学试剂在使用前均在400 ℃下干燥4 h以上.本文所使用的高纯石墨阳极和阴极由沈阳金科石墨公司提供,石......
CaCl2, 0.695 g/L KCl, 0.201 g/L NaHCO3, 0.101 g/L KBr, 0.027 g/L H3BO3, 0.025 g/L SrCl2, 0.003 g/L NaF, PH=8.2)溶液中进行测试.将样品在人工海水溶液中浸泡30 min,待开路电位稳定后开始实验,动态极化曲线以0.005 V/s的固定速率扫描.涂层侧面形貌及磨损后磨痕形貌采用FEI Quanta......
in a phosphating bath, which contained 10.0 g/L Na2HPO4, 4.0 g/L NaNO2, 6.0 g/L Zn(NO3)2, 2.0 g/L Ca(NO3)2 and 2.0 g/L NaF. For the preparation of Zn-Ca-Ce-P coating, 1.0 g/L Ce(NO3)3 was added to the solution......
不锈钢,钛基合金和镍基合金工件的制造.例如:KARIMI ZARCHI等[12]在950~1100 ℃下纯钛NaF活化包埋渗铝进行研究,对样品上的渗铝层进行了表征.结果表明:在950 ℃的增重预测值与实验值吻合较好.然而,针对三维网状开孔泡沫金属材料而言,由于三维网状开孔泡沫金属基体内部具有大量的孔隙结构,比表面积大,泡沫网丝结构复杂.相对实体材料而言,采用固体粉末包埋工艺对泡沫金属材料进行表面改... of Materials Research, 2001, 16(4): 1028-1036. [12] KARIMI ZARCHI H R, SOLTANIEH M, ABOUTALEBI M R, GUO X. Kinetic study on NaF-activated pack-aluminizing of pure titanium at 950-1100 ℃[J]. Transactions......
态升高可局部实现自修复,进而综合性能可与六价铬转化膜工艺相当[28]. 2 三价铬转化膜 20世纪90年代,美国海军航空系统司令部NAVIAR工程师AGARWALA和PEARLSTEIN首次开发了基于铬酸盐和硅酸盐的第一代三价铬转化膜(溶液组分Cr2(SO4)3,Na2SiF6 和NaF),并在长达96 h的中性盐雾试验中保持良好的耐蚀性能[29].之后的数十年,美国NAVIAR,科研机构及企业......
Na2HCO3,0.101 g/L KBr,0.027 g/L H3BO3,0.025 g/L SrCl2,0.003 g/L NaF,由分析纯试剂和蒸馏水配置并且用1 mol/L NaOH将其pH值调至8.2. 2 结果与讨论 2.1 热处理和深冷循环处理对Zr基块体非晶合金结构的影响 采用X射线衍射仪分别对铸态试样,500 K温度状态下分别保温10,30,50 min退火态试样......
;and with measured activities of NaCl and H2O as aNaCl and in Ref.[17] for NaCl-H2O binary solution with NaF?2H2O as formed hydrous salt molecule at 298.15 K Fig.3 Comparison......
Trans. Nonferrous Met. Soc. China 24(2014) 1273-1288 Research and prospect on extraction of vanadium from vanadium slag by liquid oxidation technologies Zhong-hang WANG1,2, Shi-li ZHENG1, Shao-na WANG1, Biao LIU1, Da-wei WANG1,3, Hao DU1, Yi ZHANG1 1. National Engineering Laboratory for Hydrometallu......