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NiAl; NiAl-based composites; JJ-3 alloy 金属间化合物NiAl具有熔点高,密度低,热导率大和抗氧化性能优异等一系列特点... and NiAl-based alloys 注:m为应变速率敏感指数；Qc为体扩散激活能；d为伸长率；DS为定向凝固 NiAl及其合金超塑性变形的特点: a. 中等的超塑性伸长率.超塑性变形的最大伸长率在160%~480%内波动(见表1),与许多金属材料的超塑性在1 000%以上有所不同.利用超塑成形工艺制备复杂零件仅需150%~300%的伸长率,而且NiAl合金具有较低的流变应力,通......
mixed enthalpy path on disordering AuCuI , based on the assessment of experimental data [3,9]. The subequilibrium order degree path has been obtained by the experimental path method based on the iso-order degree mixed enthalpy equilibrium path chart (Figs. 1(b)-(d) and Fig. A.2 in Appendix A). Namely, the experimental path is translated into the subequilibrium......
pieces. The technique is based on electrochemical background; however, the high temperature plasma discharges induced other complex non-Faradaic processes such as plasma assisted deposition [16... process, are available [11,17-35]; however, most of the research works were carried out in silicate electrolytes [18]. The PEO coatings on aluminum alloy obtained from silicate-based electrolytes......
Trans. Nonferrous Met. Soc. China 29(2019) 143-156 High performance room temperature gas sensor based on novel morphology of zinc oxide nanostructures Naila ZUBAIR, Khalida AKHTAR National Center... with novel morphologies were synthesized through simple and fast ammonia based controlled precipitation method in aqueous media and in the absence of any additive. Selected batches of the synthesized......
Biomaterialia, 2015, 13: 16-31. [4] LI X, LIU X, WU S L, YEUNG K.W.K, ZHENG Y F, CHU P K. Design of magnesium alloys with controllable degradation for biomedical implants: From bulk to surface[J]. Acta... in simulated body fluid[J]. Journal of Materials Engineering & Performance, 2017, 26(9): 4282-4290. [6] CHEN X, LI G, LIAN J, JIANG Q. Study of the formation and growth of tannic acid based conversion......
be transformed into oxides or sulfides, which has higher thermal stability. Thus, the bulk of HMs will still exist in biochar. It is also found that different HMs present distinct enrichment degrees...] ZHAI Yun-bo, CHEN Hong-mei, XU Bi-bo, XIANG Bo-bin, CHEN Zhong, LI Cai-ting, ZENG Guang-ming. Influence of sewage sludge-based activated carbon and temperature on the liquefaction of sewage sludge: Yield......
in deep mining condition. Based on the in-site geological conditions of Longgu coal mine, this paper used the dynamic module of FLAC3D to study the response characteristics of deep super-large section... researches on the deformation and failure evolution of surrounding rock under the deep dynamic load condition. In the aspect of theoretical analysis, based on the elasticity theory, LIU et al [22......
; 开放科学(资源服务)标识码(OSID) 文章编号:1672-7207(2021)01-0070-16 Advances in Fe-based chemical looping technology for CH4/CO2... in the same reactor and different reactors. Thermodynamic calculation results prove that Fe-based oxygen carriers are promising in the field of chemical looping CH4/CO2 conversion. Different supports......
Equilibrium line of iron oxide and hydrogen/water and operation line of iron-based chemical looping hydrogen generation (850 ℃)[15] 由图3(b)可知:当还原床采用氧化铁气固并流操作时,为了使燃料完全氧化为CO2和H2O,铁基氧载体的价态需要保持在Fe2O3与Fe3O4...进行了进一步探究,发现可以通过同时加入CeO2和ZrO2来抑制积碳和碳化钨的形成,从而有效提高了氢气纯度. 图8 Ni对WOx的表面和体相改性示意图[60] Fig. 8 Schematic diagram of surface and bulk modification of WOx by Ni[60] 为了进一步提高晶格氧的利用率和甲烷的转化能力,CHEN等[60]制备了Ni改性的WO3基氧......
) Table 2 Bulk chemical composition of ores from the Sanhexu and Paojinshan deposit(μg/g) 表3 泡金山及三合圩矿床In与其他元素相关系数表 Table 3 Correlation coefficient between indium with other elements of the Sanhexu...过饱和,富含锂矿物,稀土元素强烈的负Eu异常,锆石高Zr/Hf比值等特征,演化过程中发生熔体与流体交代作用,有利于岩浆充分演化和含矿岩浆热液的形成,为锡铅锌矿的成矿提供前提[45-46].大量的研究显示铟成矿与高分异花岗岩有关,如英国西南部富铟矿集区[47],德国东南部Erzgebirge地区[48],加拿大东部的Mount Pleasant矿区[49],华南的都龙,个旧等均显示与高分异花岗岩有关......
