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with copper oxide nanoparticles among others. The review published by LIU et al [7] presented experimental results obtained for the heat pipe and nanofluid combination applied to several kinds... by this heat pipe. Newer reviews were published by BUSCHMANN [8] and SURESHKUMAR et al [9], and also obtained similar results regarding the heat transfer performance. The existing analytical studies......
into the defects in the substrate. LI et al [37] prepared a MoSi2-CrSi2-Si coating on the surface of the SiC pre-coated C/C composites. The coating obtains an excellent anti-oxidation capability... 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......
surface after 27 years of construction. Another example of this acid attack is reported by LI et al [8] where a severe corrosion issue of cement-based structures by sulfuric acid was observed... indicated that the acid resistance of concrete can be noticeably enhanced [15-17]. TORRI et al [15] investigated the acid resistance of mortar samples and found that the 10% substitution of cement......
100%的Cu和95%的Li被浸出,Mn的浸出率也超过了70%,而Al,Ni以及Co的浸出率只有40%左右.经分析发现,黑曲霉代谢活动中产生的有机酸主要包括柠檬酸,苹果酸,草酸和葡萄糖酸等,其中柠檬酸对金属的浸出率贡献最大. 尽管通过一些离子的催化作用或者改变菌种体系可以使一些金属的浸出率显著提高,但生物浸出方法仍然难以在工业中大规模应用,其原因是:一方面,菌种难培养不易存活,对生长环境要求高；另...现Co,Ni以及Cu的高效浸出,而Mn和Al基本不被浸出. 2.5 辅助强化浸出 一般地,酸浸出和氨浸出都需要较长的浸出时间和较高的浸出温度.为了提高金属的浸出效率,可采用一些辅助方法来增强浸出.常见的辅助浸出手段有超声辅助以及机械化学辅助[71-72]. JIANG等[71]以H2SO4作为浸出剂,H2O2作为还原剂从废旧LiCoO2中浸出Li和Co.在浸出温度为30 ℃和浸出时间为30 min......
CH4/CO2转化工艺的实现需要设计能够实现铁基载氧体深度还原,燃料高效转化的燃料反应器,CH4和CO2需要转化率在大规模反应装置进一步证实. 参考文献: [1] 苏小平, 王力, 杨武, 等. 甲烷化学链重整制合成气的研究进展[J]. 地下水, 2017, 39(4): 198-202. SU Xiaoping, WANG Li, YANG Wu, et al. Chemical looping...] LI Danyang, XU Ruidong, GU Zhenhua, et al. Chemical-looping conversion of methane: a review[J]. Energy Technology, 2020, 8(8): 1900925. [38] TANG Mingchen, XU Long, FAN Maohong. Progress in oxygen......
the debinding process. LI et al [37] studied the curing properties of paraffin coating modified ZrO2 based on stereolithography. Due to the large refractive index difference between photosensitive resin... Technique overview Binder jetting (BJ) was developed by SACHS et al in 1993 [4]. It is also known as the 3DP method. This technology involves inkjet nozzle, which sprays the binder on the plastic powder......
]. http://www.sohu.com/a/238747317_655347. GAN Yong. The 21th Century is the Age of Hydrogen[EB/OL]. [2019-09-20]. http://www.sohu.com/a/238747317_655347. [9] TANG Jue, CHU Man-sheng, LI Feng, et al... 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......
factor and penetration rate [32]. A review of rockbursting during TBM tunneling in hard rock and coal mines is presented by ZHENG et al [7]. For railway and hydropower engineering where the overburden... 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......
