Results 11 to 20 of about 11,908 (214)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma +13 more
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Shuitu Baochi Xuebao, 2006 研究了酸度对土壤溶液中铜形态的影响以及不同形态铜与黑麦草吸收及其生长的关系。结果表明：酸度强烈地影响土壤溶液中铜的化学形态，随着酸度的增加，土壤溶液中各种形态铜的含量包括水溶态铜、离子态铜及与易溶有机物结合的铜都相应增加，而且随处理铜浓度的增加不同酸度土壤上的差异更大。酸度能影响黑麦草对铜的吸收，随酸度的增加，黑麦草对铜的吸收增加。其中在对照及低铜处理中两种土壤的差异不显著，而在处理铜浓度高于50mg／kg以后两种土壤上的黑麦草铜含量差异都达显著水平。黑麦草的生长随土壤酸度的增加而变差 ...
李文庆, 张民, 束怀瑞
doaj +2 more sources
High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The pre‐existing α‐Fe crystals have important effects on the precipitation and growth of nanocrystals and finally determine the comprehensive soft magnetic properties (SMPs) of the nanocrystalline alloys (NAs). In this work, a high content of Cu elements has been added to Nanomet‐type alloys to enhance the gradient heterogeneity in order to ...
Lei Xie +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 以棕壤为供试土壤,采用室内土柱淋溶模拟试验方法,研究了相当于泰安平均年降水量条件下铜在土壤垂直方向上的迁移转化特征.结果表明:各处理土壤中的铜在0～10 cm土层中均有不同程度的迁移转化.土壤铜含量越高,年降水量条件下表层土壤中铜的淋失量越大,沉淀态铜和矿物残留态铜所占的比例增加了28.57%～33.49%.高铜土壤中,钙含量的增加使交换态铜比例降低幅度为9.97%～10.48%,使铜的迁移量最大可减少15.54%;随褐煤施入量的增加,表层交换态铜含量减少,铜向5～10 cm土层中的淋溶量减少显著 ...
王立仙 +3 more
doaj +2 more sources
Study on Electrochemical Performance of Copper Sulfides used as Anode Material in the Conventional Nonaqueous Electrolytes [PDF]
, 2015 目前商用的石墨负极材料本身振实密度较低，过充状态下容易产生锂枝晶，会刺破隔膜造成短路，导致电池安全性问题；并且在电化学过程中常常伴随较大的体积变化和结构塌陷，导致该材料的循环性能变差。故而开发新型负极材料一直成为锂离子电极材料研究的热点。 硫化亚铜材料以其优异循环性能，倍率性能，高的电子导电性（104S·cm-1），有且仅有一个平坦的放电平台，成为具有发展潜力的新型锂离子电池负极材料。文献报道纳米棒状的硫化亚铜材料在醚类电解液中，可在3200mA·g-1的大电流充放电下获得260mAh·g-1的可逆容量，
石春美
core
GIS - Gesto, Imagem e Som - Revista de Antropologia, 2022 “Axé, é o que é” é um ensaio visual que busca apresentar mundos imaginados, vividos, sentidos, chorados e experimentados através do desenho. Esse último, se apresenta como um espaço de diálogo com seres materiais, imateriais, com o que escapa aos olhos, as cores e algumas racionalidades.
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Cu‐Based Catalysts Design Toward Electrochemical CO2 Reduction to Valuable Multi‐Carbons Products
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Electrochemical reduction of CO2 to multi‐carbon products (e.g., C2+, ethene, ethanol, etc.) not only effectively decreases the CO2 concentration in atmosphere but also shows great potential economic benefits due to these exploitable value‐added products. The Cu‐based catalysts have caught much attention in CO2 electroreduction due to the good
Li‐Qing Li +5 more
wiley +1 more source
SE PUBLICAR É PRECISO, AVALIAR TAMBÉM É! [PDF]
Revista de Administração de Empresas, 2018 O tema “revisão de artigos” é relevante e faz parte do cotidiano de todo pesquisador. Entretanto, a minha experiência como editor e revisor em periódicos brasileiros e internacionais torna evidente que o comprometimento dos pesquisadores na função de revisores, em geral, é muito menor do que quando estão na posição de autores.
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Direct Observation of Matrix‐to‐Precipitate Elemental Diffusion in Severe Plastic Deformation
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Elemental redistribution, particularly the solute exchange between the matrix and precipitates, is a central issue in alloys subjected to severe plastic deformation (SPD). To elucidate this behavior, a nickel–aluminum bronze (NAB) alloy was processed by high‐pressure torsion (HPT), and its microstructural evolution was systematically ...
Xiaobin Yang +9 more
wiley +1 more source