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| 1 | 汽车用铝合金开发近况(英文)显示文摘介绍了汽车车身用轻质材料铝合金的研究近况,包括材料选择和车体设计新概念等方面。为满足经济和环境保护等方面不断增长的要求,对乘用车在使用已成熟的和最新研究开发的铝合金方面的进展进行了讨论。介绍了一些改进的具有更高的强度和更好的成形性能的5系和6系铝合金,使用这些合金能减轻汽车质量和提高防撞性能。以铝合金在'多材料超轻汽车'概念中的应用到达显著的减重效果为例,介绍了多材料轻质设计方面的研究进展。 | Jürgen HIRSCH | 2014 | Transactions of Nonferrous Metals Society of China2014,24,7: | 84 |
| 2 | 7xxx系铝合金热处理的进展(英文)显示文摘7xxx系合金是基于Al-Zn-Mg(-Cu)系的可热处理的锻铝合金,广泛应用于高性能航空结构和运输部件。除了受成分、铸造和形变热处理影响外,材料性能的平衡明显受到其所经历的热处理方式的影响。描述了均匀化、固溶处理、淬火、时效对7xxx系高强合金组织和性能的影响。总结了在Monash大学进行的有关厚板产品的生产工艺,包括从均匀化到最终的时效处理,以及通过控制微观组织特征,比如弥散体、粗粒子、精细析出相、晶粒结构和晶界特征,来实现组织与性能的平衡。重点陈述了相关方法,如通过高温热处理溶解不需要的粗粒子、基于连续冷却析出行为的淬火敏感性变化、通过实验与建模来研究时效包括一步时效、两步时效、三步时效。对每种情况下的组织与性能都进行研究。 | Paul A.ROMETSCH Yong ZHANG Steven KNIGHT | 2014 | Transactions of Nonferrous Metals Society of China2014,24,7: | 77 |
| 3 | Technology development for rare earth cleaner hydrometallurgy in China显示文摘China is the global leader in rare earth(RE)production using hydrometallurgical processes. Advantageous extraction techniques of rare earths from Baotou mixed rare earth minerals, bastnaesite, and ion-adsorption clays of rare earth deposits have been developed in China.The separation and purification technologies have also achieved rapid development. The industrial application processes for rare earth hydrometallurgy were summarized in the present paper. With the large demands and rapid development of rare earths, the issues of resources and environment are more prominent. This review gives an overview of the main processes that were developed in the past toward greener hydrometallurgy of rare earths in China. Based on the development of the rare earth industry,comprehensive utilization and cleaner production should still be focused on in the future, to support the sustainable development. | Xiao-Wei Huang Zhi-Qi Long Liang-Shi Wang Zong-Yu Feng | 2015 | Rare Metals2015,34,4: | 76 |
| 4 | 岩爆等级预测的随机森林模型及应用(英文)显示文摘将随机森林分类方法应用于岩爆等级判定问题中。选用洞室围岩最大的切向应力、岩石单轴抗压强度、抗拉强度、岩石弹性能量指数作为岩爆等级判定的因素,并按照不同的组合形式将其分为指标组I和II。以收集到的工程中的实际岩爆情况及数据作为训练样本,进行分析计算,建立岩爆等级判定的随机森分析模型。运用该分析模型对未参加训练的国内外工程实际岩爆情况进行判定,并与支持向量机及神经网络的判定结果进行比较。研究表明,指标组I优于指标组II;用随机森林、支持向量机和神经网络方法计算的正确率分别为100%、90%、80%。可见,随机森林方法判别能力强,误判率低,是解决岩爆等级判定的一条有效途径。 | 董陇军 李夕兵 彭康 | 2013 | Transactions of Nonferrous Metals Society of China2013,23,2: | 58 |
| 5 | Photocatalytic properties of BiOX (X = Cl, Br, and Ⅰ)显示文摘A novel series of photocatalysts,bismuth oxyhalide(BiOX,X =Cl,Br,and I),were synthesized by a hydrolysis method.The powder sam- pies were characterized by the use of X-ray diffraction(XRD),scanning electron microscope,and UV-Vis spectrophotometer.The XRD pattern showed that all the BiOX were well crystallized in the tetragonal structure.The band gaps of the sheet-shaped compounds BiOX(X= Cl,Br,and I)were 3.44,2.76,and 1.85 eV,respectively.BiOBr showed the highest photocatalytic activity in degrading rhodamine B(RhB) and evolving O_2 for its proper valence band(VB).BiOI has no photocatalytic activity.BiOCl showed the highest activity in decomposing isopropanol because of electron-hole pair separation through trapping electrons by oxygen vacancies. | AN Huizhong DU Yi WANG Tianmin WANG Cong HAO Weichang ZHANG Junying | 2008 | Rare Metals2008,27,3: | 43 |
| 6 | 六偏磷酸钠在蛇纹石与黄铁矿分离中的作用(英文)显示文摘通过浮选试验、沉降试验、表面溶解、ζ电位测试、吸附量测试和红外光谱测试研究六偏磷酸钠在蛇纹石与黄铁矿分离中的作用与机理。结果表明,六偏磷酸钠可以显著减弱蛇纹石对黄铁矿浮选的不利影响,它能在碱性条件下使蛇纹石与黄铁矿分散,从而提高黄药在黄铁矿表面的吸附量。六偏磷酸钠的作用是通过溶出蛇纹石表面的镁,并在其表面吸附,降低蛇纹石表面等电点pH,增强负电性。DLVO理论计算表明,六偏磷酸钠能使蛇纹石与黄铁矿间的总相互作用能由引力位能转变为斥力位能。 | 卢毅屏 张明强 冯其明 龙涛 欧乐明 张国范 | 2011 | Transactions of Nonferrous Metals Society of China2011,21,1: | 41 |
| 7 | Short communication Catalytic synthesis of butyric esters with TiSiW_(12)O_(40)/TiO_2显示文摘The catalytic activities of TiSiW12O40/TiO2 in synthesizing ethyl ester, propyl ester, n-butyl ester, and amyl esterwere reported. It was demonstrated that TiSiW12O40/TiO2is an excellent catalyst. Various factors concemed with esterifica-tion were investigated. The optimum conditions were found: the mole ratio of alcohol to acid is 1.3:1, the mass ratio ofcatalyst to reactants is 1.5%, and the reaction time is 1.0 h. Under the optimum conditions, the yields are 88.0% for ethylester, 94.5% for propyl ester, 98.6% for n-butyl ester, 99.1% for n-amyl ester, and 96.7% for iso-amyl ester, respectively. | YANGShuijin CHENLuchun SUNJutang | 2003 | Rare Metals2003,22,1: | 46 |
| 8 | Rare earth ion modified TiO_2 sols for photocatalysis application under visible light excitation显示文摘TiO2 sols modified by rare earth (RE) ions (Ce4+, Eu3+, or Nd3+) were prepared by coprecipitation-peptization method. The photocatalysis activity was studied by investigating the photodegradation effects of active brilliant red dye X-3B. It is found that TiO2 sols modified by Ce4+, Eu3+, or Nd3+ have the anatase crystalline structure, which are prepared at 70°C. All REn+-TiO2 sol samples have uniform nanoparticles with similar morphology, which are homogenously distributed in aqueous colloidal systems. The particle sizes are 10, 8, and 12 nm for Nd3+-TiO2, Eu3+-TiO2, and Ce4+-TiO2, respectively.The character of ultrafine and positive charge sol particles contributes to the good adsorption of X-3B dye molecule on the surface of titania (about 30% X-3B adsorption amount). Experimental results exhibit that REn+-TiO2 sol photocatalysts have the capability to photodegrade X-3B under visible light irradiation. Nd3+-TiO2 and Eu3+-TiO2 show higher photocatalytic activity than Cea+-TiO2, which is due to the difference of standard redox potential of REn+/RE(n-1)+. REn+-TiO2 sols demonstrate more excellent interfacial adsorption and photodegradation effects to X-3B than P25 TiO2 crystallites. Moreover, the degradation mechanism of X-3B is proposed as dye photosensitization and electron scavenging by rare earth ions. | XIEYibing YUANChunwei | 2004 | Rare Metals2004,23,1: | 39 |
| 9 | Microstructure and mechanical properties of hypereutectic Al-Si alloy modified with Cu-P显示文摘The microstructure and mechanical properties of Al-14.6Si castings modified by Cu-P master alloy under different conditions were studied with optical microscope(OM) and mechanical testing and simulation(MTS).The results indicate that the Cu-P master alloy possesses not only obvious modification effect,but also longevity effect with more than 8 h on the hypereutectic Al-Si alloy.It is shown from thermal calculation,scanning electron microscope(SEM),and energy dispersive analysis of X-rays(EDAX) that the modification mechanism of Cu-P on primary silicon in the castings is heterogeneous nucleation around AlP particles.The Cu-P master alloy has no or little modifying effect on eutectic silicon,even though it has obvious modification on primary silicon in the castings.This may be because of the fast transformation of eutectic silicon at a very narrow temperature,which will notably weaken the role of AlP particles as heterogeneous nuclei for eutectic silicon. | ZHANG Henghua DUAN Haili SHAO Guangjie XU Luoping | 2008 | Rare Metals2008,27,1: | 35 |
| 10 | Effects of Sb,Sm, and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy显示文摘The microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd magnesium alloy with Sb, Sm, or Sn addition were investigated through X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The results show that small amounts of Sb, Sm, and especially Sn can refine the grains of the alloy. High melting point Sb3Y5, Al2Sm, and Nd5Sn3 intermetallic compounds can be formed respectively when Sb, Sm, and Sn are added to the alloy. Sb and Sm can improve the tensile strength of the alloy at ambient and elevated temperatures. The tensile strength of the alloy with Sm addition is the highest at 293 and 423 K. However, the tensile strength of the alloy with Sn addition is the highest at 448 K. | LI Kejie LI Quanan JING Xiaotian CHEN Jun ZHANG Xingyuan | 2009 | Rare Metals2009,28,5: | 39 |
| 11 | Arc erosion of AgSnO_2 electrical contacts at different stages of a break operation显示文摘Arc erosion studies are conducted on AgSnO2 contact materials at different stages in the break operation.A resistive load arrangement is used with up to 42 V DC at 24 A and a constant contact opening velocity.The arc current is terminated at different stages as the arc is drawn between the contacts enabling a study of the arcing phenomena up to that point.Surface profiling of the contacts is conducted to determine the extent of erosion at the different stages as the arc is drawn.Spectral analysis is also conducted on the arc and then related to the extent of erosion.The results show that particular features occur at different stages as the arc is drawn.As the arc is initially established,it goes through an 'Arc Generation' regime where the arc roots are small and immobile on both the anode and the cathode.Material transfer occurs mainly from anode to cathode.The spectral analysis indicates that Sn and O species dominate the arc followed by the Ag species.As the arc is drawn further and enters the 'Arc Degeneration' regime,the anode undergoes significantly larger erosion than the cathode.Also,both contacts indicate that multiple arc roots have formed,which are highly mobile in the later stages of the discharge.The spectral analysis indicates that Ag and N species are in high concentrations compared to other species.The mechanisms of erosion and deposition are discussed in relation to the species within the arc discharge.For the complete break operation,it is found that the anode undergoes major erosion,and it is thought that the gaseous ions species do not dominate the arc under these conditions of short arcs and voltage <42 V to cause cathode erosion. | J. Swingler A. Sumption | 2010 | Rare Metals2010,29,3: | 40 |
| 12 | 基于改进的潜在生态风险指数的霞湾港底泥重金属生态风险评价(英文)显示文摘基于潜在生态风险指数(RI)和风险评价代码(RAC),建立改进的潜在生态风险指数(MRI)。该方法考虑了单个重金属不同形态毒性的不同。以株洲霞湾港底泥为例,研究Cd、Cu、Pb、Zn的污染状况及其形态特征,并分别运用潜在生态风险指数、风险评价代码以及改进的潜在生态风险指数3种方法对霞湾港底泥进行风险评价。实验数据显示,霞湾港底泥的重金属污染严重。根据改进的潜在生态风险指数,重金属生态风险呈现Cd>Pb>Cu>Zn递减的顺序。通过对比得出,改进的生态风险评价综合了潜在生态风险指数和风险评价代码2种方法的优点,评价结果更加可靠,能够为风险管理提供一定的理论依据。 | 祝慧娜 袁兴中 曾光明 蒋敏 梁婕 张长 尹娟 黄华军 刘智峰 江洪炜 | 2012 | Transactions of Nonferrous Metals Society of China2012,22,6: | 37 |
| 13 | 加压酸浸法从粉煤灰中提取铝(英文)显示文摘利用加压酸浸法从粉煤灰中提取铝。研究了粉煤灰粒度、硫酸浓度、反应时间、反应温度对铝提取率的影响。通过XRD、SEM、IR对反应前、后的粉煤灰进行物相和形貌分析。确定的最佳工艺条件为粉煤灰粒度74μm,硫酸浓度50%,反应时间4h,反应温度180℃。在最佳工艺条件下,氧化铝的提取率为82.4%。 | 吴成友 余红发 张慧芳 | 2012 | Transactions of Nonferrous Metals Society of China2012,22,9: | 39 |
| 14 | Effect of SiC whiskers on the oxidation protective properties of SiC coatings for carbon/carbon composites显示文摘以便有效地采用唯一的高温度碳 / 碳的机械性质合成底层,原文如此,涂层增强了由原文如此,络腮胡子被包装硬化方法准备。效果原文如此,单个层的涂层和双层涂层的氧化抵抗性质上的络腮胡子被调查。原文如此络腮胡子在单个层原文如此涂层在反氧化性质上有小效果,但是显然改进热吃惊性质。有内部层的增强的涂层的双层涂层与原文如此内部层的涂层比双层涂层展出更多的完美的反氧化能力。 | SHI Xiaohong LI Hejun FU Qiangang LI Kezhi ZHANG Xiulian | 2006 | Rare Metals2006,25,1: | 33 |
| 15 | Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coal显示文摘钒从的抽取技术借助于 no-salt-roasting 投掷煤并且冲淡酸答案沥滤处理有低污染,低投资,以及高钒沥滤效率的优点,它为扩大申请使它成为最好的技术。在现在的学习,钒出现的效果在石头煤声明钒的沥滤的效率上的温度和添加剂代理人被学习,烤。结果显示提取的钒技术上的钒出现状态的效果是明显的。如果在石头煤的钒部件在非结晶的阶段形式存在,这类石头煤能被 no-slat-roasting 对待并且冲淡酸答案沥滤技术;当忍受钒的水晶的阶段在石头煤存在时,烤的添加剂必须被增加破坏这种水晶的形式以便高获得钒沥滤率。 | WANG Mingyu XIANG Xiaoyan ZHANG Liping XIAO Liansheng | 2008 | Rare Metals2008,27,2: | 32 |
| 16 | Evaluation of ecological risk and primary empirical research on heavy metals in polluted soil over Xiaoqinling gold mining region,Shaanxi,China显示文摘Soil,crop and residents'hair over Xiaoqinling gold mining region,China,which was selected as a case study,were sampled and analyzed for Hg,Cd,Pb,Cu,Cr,As and Zn concentrations.The concentrations of heavy metals in soil or crop and hair samples were used to assess their potential ecological risks,or to find the responses to these metals as evidences to prove the potential risk was coming down to observed harm,respectively.The results showed that,these metals in soil were ranked by severity of ecological risk as Hg>Cd>Pb>Cu>Cr>As>Zn,based on their single-element indexes.In the view of the potential ecological risk indexes,of all soil samples,about half had significantly high or high potential ecological risk,which covered more than 74%of the studied region.Most of the risks were 97.41%from Hg,Pb and Cd,especially,84.37%from Hg.Both the single-element and potential ecological risk indexes indicated that,the ecological risk grades had a special spatial characteristic,and increased from northwest to southeast generally.This was agreed with the spatial distribution of the strength in gold mining activities over the studied region.The concentrations of Hg and Pb were higher than their relative backgrounds in the corps,and were even 9.48 and 25.09 times higher than their relative backgrounds in residents'hair,respectively.All these showed that the heavy metals in the soil had a high potential ecological risk,especially,had been affecting these crops'growing and yield,and even the residents'health through food strains.Obviously,these metals'potential ecological harm had been coming down to observed harm to the ecology. | 吴耀国 徐友宁 张江华 胡思海 | 2010 | Transactions of Nonferrous Metals Society of China2010,20,4: | 33 |
| 17 | Recent progress in carbon/lithium metal composite anode for safe lithium metal batteries显示文摘Owing to their very high theoretical capacity,lithium(Li) metal anodes regain widespread attentions for their promising applications for next-generation highenergy-density Li batteries(e.g., lithium–sulfur batteries,lithium–oxygen batteries, solid-state lithium metal batteries). However, the inherent bottleneck of Li metal anodes,especially the growth of Li dendrites and the related safety concerns, should be well addressed. Owing to their featured micro-/nano-porous structures and intriguing physical properties, nanocarbon materials have been applied as host materials for Li metal anodes. This review summarizes the recent progress in the development of porous nanocarbon materials for safe Li metal anodes. The perspectives regarding the challenges and future development of employing micro-/nano-porous carbon materials in Li metal anodes are also included. | Tao Li He Liu Peng Shi Qiang Zhang | 2018 | Rare Metals2018,37,6: | 32 |
| 18 | Leaching process of rare earths from weathered crust elution-deposited rare earth ore显示文摘In order to strengthen the leaching procedure,the chemical processes of leaching rare earths (RE) from the weathered crust elution-deposited rare earth ore were investigated frow the viewpoints of kinetics,hydrodynamic and mass transfer.The results show that the leaching hydrodynamics follows the Darcy law.The leaching kinetics can be described by the shrinking core model;the leaching process is controlled by diffusion of porous solid layer;and the mass transfer can be described with Van Deemter equation.This provides a theoretic basis and a scientific approach with high efficiency and optimized extraction conditions in industrial practice. | 田君 池汝安 尹敬群 | 2010 | Transactions of Nonferrous Metals Society of China2010,20,5: | 29 |
| 19 | 添加微量Sc和Zr对Al-Zn-Mg-Cu合金力学性能和显微组织演变的影响显示文摘采用拉伸试验、扫描电镜和透射电镜,研究添加微量Sc和Zr对Al-Zn-Mg-Cu合金力学性能和显微组织演变的影响。添加0.10%Zr使合金的抗拉强度提高约105 MPa,而复合添加0.07%Sc和0.07%Zr使合金抗拉强度提高约133 MPa。在峰时效状态的合金中,添加微量Sc和Zr的主要强化机制是Al3(Sc,Zr)和Al3Zr粒子引起的细晶强化、亚晶强化和奥罗万强化。Al3(Sc,Zr)颗粒的尺寸大于Al3Zr颗粒的尺寸,但Al3(Sc,Zr)粒子分布更加弥散,因此,Al3(Sc,Zr)粒子能更加有效钉扎位错运动和抑制再结晶。 | 肖权峰 黄继武 蒋莺歌 江福清 吴昀峰 徐国富 | 2020 | Transactions of Nonferrous Metals Society of China2020,30,6: | 29 |
| 20 | 选区激光熔化成形颗粒增强铝基复合材料综述显示文摘选区激光熔化(SLM)是一种新兴逐层增材制造技术,能够生成具有三维复杂结构的高性能构件。颗粒增强铝基复合材料(PAMCs)由于结合铝基体和增强相的优异特性在很多领域被认为是一种重要材料。基于SLM和PAMCs的综合优势,新型SLMPAMCs在近年来被陆续开发和研究。因而,本文总结当前有关SLMPAMCs的研究进展。首先,着重分析SLM PAMCs的凝固行为。其次,对高性能SLM PAMCs设计和制造中涉及的重要问题进行全面的讨论,其中包括增强相的选择、工艺参数对成形和微观结构的影响以及缺陷演变和相调控。第三,对SLM PAMCs的性能和增强机制进行系统讨论。最后,对高性能SLM PAMCs未来发展方向提出建设性的观点。 | 王沛 Jürgen ECKERT Konda-gokuldoss PRASHANTH 吴明伟 Ivan KABAN 席丽霞 Sergio SCUDINO | 2020 | Transactions of Nonferrous Metals Society of China2020,30,8: | 29 |