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in diameter and 300 mm in length was used as the cathode during the MAO process. The electrolyte was made by dissolving 15 g/L Na2SiO3, 3.0 g/L NaF, 20 g/L NaOH, and 1.0 mL/L glycerol in deionized water......
composed of 10Si-10Zr-3Y2O3-5NaF-72Al2O3 (mass fraction, %). In the pack mixtures, Si, Zr and Y2O3 powders were used as the depositing source, NaF as the activator and Al2O3 as the inert filler. Before......
KOH,15 g/L Na2SiO3,3 g/L NaF组成,试剂均为化学纯.镁合金样品用铝线连接,作为阳极,不锈钢筒(d 150 mm×300 mm)为阴极.采用恒压控制模式,电压260 V,频率300 Hz,占空比30%,温度低于45 ℃,氧化时间10 min.MAO样品位去离子超专长清洗后吹干,备用. 采用多功能弧辉离子渗镀设备(QX-500,成都齐兴真空镀膜有限公司)制备Ti镀层.该设备主要由真空......
: A review [J]. Glass and Cermics, 1987, 44: 152-156. [28] KACIMI L, SIMON-MASSERON A, GHOMARI A, DERRICHE Z. Influence of NaF, KF and CaF2 addition on the clinker burning temperature and its properties [J......
aluminate (15 g/L Na2Al2O4), sodium phosphate (2 g/L Na3PO4) and sodium fluoride (1.5 g/L NaF) and an acidic electrolyte used in two-step PEO process (containing 0.1 mol/L H2SO4 and 0.1 mol/L H3PO4) [22......
极采用表面积为4 cm2的铂片电极,参比电极为Hg/Hg2SO4/饱和K2SO4 (0.64 V vs. SHE).如无特殊说明,文中出现的电位均参照该参比电极.进行电化学测试前,用SiC砂纸将工作电极打磨至光亮,去离子水冲洗干净备用. H2SO4溶液由分析纯H2SO4和去离子水配制.采用160 g/L H2SO4溶液模拟工业用电解液,标记为BE溶液.氟,氯分别以NaF和NaCl的形式加入.本研究......
等[11-13]的研究表明,分子比为2.2和2.4时,LiF含量对熔盐Na3AlF6-AlF3- CaF2-LiF-NaCl-Al2O3初晶温度的影响呈线性关系,且LiF每增加1%,熔盐初晶温度降低7.87 ℃,对冷却后电解质物相分析证实了Na2LiAlF6的存在.同时,KF-NaF-AlF 3熔盐初晶温度受KF含量影响,当m(KF)/[m(KF)+m(NaF)]为0.2~0.3时,熔盐初晶温度会出现一个拐点,在拐点前,随着KF含量的增加,熔盐初晶温度降低;在拐点之后,熔盐初晶温度随着KF含量的增加而升高[14-16].并且,对于NaF-KF-AlF3-Al2O3熔盐,KF含量每增加1%,其初晶温度将降低3~4 ℃[17-18].此外,WEI等[19]对Na3AlF6-K3AlF6-AlF3熔盐的初晶温度进行了研究,获得了A1F3,K3AIF6含量对熔盐初晶温度的影响与经验计算公式,建立了......
will exchange SO42– under 250 °C in NaF solutions, for converting celestite into SrF2. RENDN-ANGELES et al [15] treat barite- celestite crystals in highly concentrated alkaline hydrothermal fluid (5 mol/L KOH......
on water to which was added analytic reagents such as CaCl2, Fe2SO4, Na2SO4, KCl, NaF, and NaCl into distilled water were carried out to examine the influence of the ions in backwater. The ion......
was synthesized by a modified solid state reaction from stoichiometric amounts of FePO4·2H2O, NaHCO3, NaF and glucose. The precursors were mixed by ball milling for 3 h in alcohol. The mixture was dried at 70......