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presented in Ref. [52] consists of a wrapped screen mesh, made of single-plaited stainless steel. Stainless steel is a steel alloy composed of iron and different proportions of chromium, which is responsible......
to the excessive consumption of the outer Cr-Al-Si alloy coating and there are also some defects appearing in the SiO2 glass layer. SHI et al [67] prepared a La-Mo-Si-O-C coating on the surface of porous SiC pre...): 3883-3887. [25] WEN G, SUI S H, SONG L, WANG X Y, XIA L. Formation of ZrC ablation protective coatings on carbon material by tungsten inert gas cladding technique [J]. Corrosion Science, 2010, 52(9......
(2) 4Fe3++3H2O→Fe(OH)3+3H+  ... testing procedure. In addition, it is environmentally significant to carry out this research as the silica fume is the waste from the metal and alloy production industry, while nano- silica can......
为浸出剂,分别对不同类型的正极活性物质进行浸出,结果表明,在最佳条件下,LiCoO2,Li2MnO2,LiNi1/3Co1/3Mn1/3O2以及LiFePO4中锂的浸出率均可达到92%以上,而其他金属(Co,Ni,Mn和Fe等)的浸出率均在20%以下.对浸出过程的动力学进行研究发现,Li的浸出过程受扩散控制,且浸出表观活化能远比其他金属的低,这证实了Li与其他金属相比易于被浸出.PENG等[81...高等优点,但萃取剂价格昂贵,且萃取剂本身具有一定的毒性,可能会造成二次环境污染.基于此,LI等[88]采用Fe粉置换从含有Ni,Co以及Mn等离子的废旧锂离子电池浸出液中除铜,在最佳条件即温度为30 ℃,Fe与Cu质量比为1.5,反应时间为30 min时,浸出液中残留的Cu2+质量分数最低可降至0.175×10-6.Fe粉置换除铜避免了有机物萃取剂的引入,但除铜后液中又引入了Fe2+,需进一步氧化......
算 常用的载氧体为Fe,Co,Ni,Cu和Mn的氧化物,在600~1 200 ℃下CH4与常见氧化物的反应热力学数据如图3所示,lg K越大说明金属氧化物与CH4反应越容易,MnO2/Mn2O3,Mn2O3/Mn3O4,Co3O4/CoO,CuO/Cu2O比Fe2O3/Fe3O4和NiO/Ni更容易氧化CH4,并且Fe2O3/Fe3O4,Mn2O3/Mn3O4,CuO/Cu2O和NiO/Ni都可以...氢特性[59-60],ZHU等[61]将Ce1-xFexO2(x=0,0.1,0.2,0.3,0.4,0.5,0.6和1.0)载氧体用于化学链甲烷水蒸气重整研究,结果表明低温下表面最活泼的晶格氧导致CH4完全氧化生成CO2,而高温下CO是主要产物,Fe含量的增多导致CO选择性降低,850 ℃下Ce0.5Fe0.5O2载氧体具有良好的稳定性.GALVITA等[62]将不同CeO2负载量的......
alloy surface is more conducive to the proliferation of osteoblasts [22]. Table 3 Effects of sintering temperature on porosity, density, and flexural properties of 3DP HAAW composites Table 4...): 2675-2688. DOI: 10.1111/j.1551-2916.2006.01207.x. [21] KE D, BOSE S. Effects of pore distribution and chemistry on physical, mechanical, and biological properties of tricalcium phosphate scaffolds......
Zhi-guang, et al. Reduction kinetics of Fe2O3-NiO composites for production of Fe/Ni alloy using hydrogen under non-isothermal conditions[J]. The Chinese Journal of Nonferrous Metals, 2017, 27(1...原产物磨矿时间10 min,磁场强度0.156 T的优化条件下,可获得镍品位5.64%,镍回收率83.59%的镍铁产品.丁志广等[57-58]对H2还原红土镍矿过程进行了详细分析,发现在小于600 ℃ 的低温条件下,镍,铁的金属化率随温度升高呈现提高的趋势;实验所采取的氢气浓度(20%~100%)及矿物粒度(0.15~0.83 mm)条件对镍,铁金属化率的影响并不显著;对含Ni 0.82%,Fe......
forces from rock blocks. Cutters today can either incorporate hard, fine grained carbides into the matrix of the disc material or apply a hardened coating of alloy powder on the steel substrate......