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Quantitative Analysis and Affecting Factors of the Overlapping Degree of Interfacial Transition Zone between Neighboring Aggregates in Concrete孙国文1,2,孙伟1,21. School of Materials Science... to measure the overlapping degree between the interfacial transition zone (ITZ) of neighboring aggregate particles was put forward. The formula was further deduced to quantitatively analyze the influence......
; 开放科学(资源服务)标识码(OSID) 文章编号:1672-7207(2020)05-1255-13 Geochemistry and organic enrichment mechanism of shale in Yanxi Formation of middle... University), Changsha 410083, China； 3. College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China) Abstract: To acknowledge the organic matter(OM) enrichment......
the critical value, the growth velocity decreases with the increases of it. During a variety of degree of supercooling, the growth velocity is under control from thermal diffusion to kinetics. Under the control of thermal diffusion, the growth velocity increases with the increase of degree of supercooling and tip radius R decreases with the increase of temperature. Under the control of kinetics......
Corrosion resistance of Mg(OH)2/Mg-Al-layered double hydroxide coatings on magnesium alloy AZ31:influence of hydrolysis degree of silaneQing-Song Yao,Zhong-Chao Li,Zai-Meng Qiu,Fen Zhang,Xiao-Bo Chen...)coatings were modified with methyltrimethoxysilane(MTMS)on magnesium alloys.Effect of hydrolysis degree of silane solution on coating formation was investigated.Chemical compositions and surface......
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from silver-contained lead-antimony multi-component alloys was investigated by vacuum distillation process for the enrichment of silver under the condition of medium vacuum. The effects of distillation.... And the silver enrichment is efficient by vacuum distillation. Key words: jamesonite; lead anode slime; vacuum distillation; separation; silver enrichment 随着脆硫铅锑矿在锑,铅冶金中的广泛应用,其冶炼过程中得到的粗铅经电解精炼后产出的高锑低银类铅阳极泥也日趋增加......
3D Bioplotting of Gelatin/Alginate Scaffolds for Tissue Engineering:Influence of Crosslinking Degree and Pore Architecture on Physicochemical PropertiesTing Pan1,2,3,Wenjing Song1,2,3,Xiaodong... the scaffolds with different pore architectures by deposition of gelatin/alginate hydrogels layerby-layer. The scaffolds with different crosslinking degree were obtained by post-crosslinking methods.Their......
and Te are 0.16%, 3.36%, 1.02% and 0.05%, respectively, leading to the separation and enrichment of valuable metals from copper anode slime relatively. Key words: low-temperature alkaline smelting; copper anode slime; valuable metal; separation; enrichment 铜阳极泥是铜电解精炼过程中产出的一种重要副产品,它是由阳极铜在电解精炼过程中不溶于电解液的各种物质所组成[1-2],通常含有Au,Ag,Cu,Pb,Se,Te,As,Sb,Ni,Bi,S,Sn,Fe,SiO2,Al2O3,铂族金属和水分,是提取稀贵金属的重要原料[3].铜阳极泥的处理应首......
Si对含铜钢表面高温氧化后铜元素富集的影响董汉君1,张晖2,车马俊2,何宜柱2(1.江苏省南京市上海梅山钢铁股份有限公司 制造部2.安徽工业大学材 料科学与工程学院,安徽马鞍山 243002)摘 要:研究了Si元素对抑制含铜钢高温氧化后表面铜元素富集的影响.结果表明:添加Si元素使合金氧化后形成较多内氧化产物2FeO·SiO2,该氧化物在生长过程中对基体局部区域形成包裹,可割断液相铜的扩散途径,降低富铜相中Cu的浓度,有利于减轻含铜钢高温氧化后基体表面铜元素偏聚,但同时会导致合金在1 150℃以上高温区抗氧化性......
降低燃料比和提高富氧率增加高炉产量项钟庸1,朱仁良2(1.重庆市中冶赛迪工程技术股份有限公司2.宝钢炼铁厂,上海 200941)摘 要:根据宝钢3号高炉的生产数据,分析了降低燃料比,提高富氧率对高炉强化的影响.认为在高炉允许的炉腹煤气量时,降低燃料比和提高富氧率,从而减少单位生铁的炉腹煤气量是高炉强化的决定性因素.对生产操作数据进行诺模化,制作成衡量高炉操作的诺模图,用来估计高炉运行的情况.关键词:燃料比； 富氧率； 炉腹煤气量； 强化冶炼......
