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The Ce-based conversion solution contained CeCl3·7H2O, NaF, benzotriazole and H2O2. The solution pH was adjusted to 3 with HCl. BTESPT silane solution was prepared by dissolving the bis-[3......
the working electrode and the counting was about 10 cm. An aqueous solution was prepared with a composition of 10 g/L Na2SiO3+8 g/L NaF+1 g/L NaOH and the temperature of the solution was remained below 30 °C......
[14]; thirdly, NaF will add traces of sodium to the Al-Cu alloy by means of the following reaction [14,15]: 3NaF+Al→AlF3↑+3Na The Al-4.5%Cu alloy was prepared using high-purity Al and Cu with 99.999......
A, 2010, 528: 691-697. [20] BANSIDDHI A, DUNAND D C. Shape-memory NiTi foams produced by solid-state replication with NaF [J]. Intermetallics, 2007, 15: 1612-1622. [21] TUNCER N, ARSLAN G. Designing......
, artificial saliva solutions with 0.25%, 0.50%, 0.75% and 1.00% F- were prepared using NaF addition. The pH value was adjusted to 2.50, 5.00 and 7.40 by adding lactic acid. The pH value of the artificial......
to that used in industrial aluminum electrolysis cells. The molar ratio of n[NaF]/n[AlF3] was 2.3, the concentration of Al2O3 was 2.5% and the concentration of CaF2 was 5.0%. The initial mass of electrolyte......
(NH2)2) [16], sodium chloride (NaCl) [17] or sodium fluoride (NaF) [18], magnesium powder (Mg) [14,19,20] and other organic particles [21,22]. However, the soluble inorganic salts (NaCl or NH4HCO3... by solid-state replication with NaF [J]. Intermetallics, 2007, 15(12): 1612-1622. [19] AYDOGMUS T, BOR S. Superelasticity and compression behavior of porous TiNi alloys produced using Mg spacers [J......
is small, but new cells may consume more cryolite than the old ones. This is because the carbon cathode of the new cell absorbs the cryolite and NaF remarkably during the startup of the cell......
波清洗后烘干.渗剂由被渗元素粉末(Cr粉和Si粉,各12%(质量分数)),催化剂(NaF粉,5%)及填充剂(Al2O3粉,71%)组成.将称量好的渗剂在QM-1SP4L球磨机中球磨4 h,使其充分混合和细化. 在自制的高温高真空可控气氛包埋渗炉中进行涂层制备,实验时将被渗试样埋入装有渗剂的刚玉坩埚中,盖好盖子后用高温粘结剂密封.装料完毕后将包埋渗炉抽真空到10-2 Pa时开始加热,加热到700......
增加, 随着使用周期的增加则会产生NiF2和NaF沉淀, 从而影响镀层的质量和寿命[2]; 二是碱式碳酸镍价格是硫酸镍的两倍, 成本高[3]. 硫酸镍的价格低廉, 容易制成纯度较高的产品, 且易溶解, 被认为是镍源的最佳选择[4]. 如果硫酸镍为主盐镀镍体系在工艺条件下对镁合金基体无明显腐蚀, 不影响施镀的效果, 那么可改善镀液的成分, 降低成本, 提高经济效益. 镀液对镁合金的腐蚀, 将直接......