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废锌锰干电池处理技术的改进——酸化、过氧化氢还原法回收锌锰

黄尊行2012-01-01化学工程与装备

本文根据废旧三圈五号锌锰电池的结构特点,提出了先将电池粉碎筛分后分批处理：先用酸洗碎料（即Mn（III）H＋Mn（IV）＋Mn（II）;ZnOH＋Zn2＋）,再通过电解法分离锌锰两种金属元素,回收电解锌和二氧化锰。用过氧化氢还原锰金属元素（即Mn（IV）H2O2H＋Mn（II））回收碳酸锰。同时对电池内少量的重金属元素（Pb、Cd、Hg）进行无害化处理。

Extraction and Separation ProcessesMetal Extraction and BioleachingMetallurgy and Material Science

分别采用沉淀法和燃烧法制备了YAG：1％Eu抖纳米晶粉末，用XRD和TEM对样品进行了结构分析和形貌表征。室温光谱分析表明，其发射主峰位于590nm，来源于5D0→7F1跃迁，另外来源于5D0→7F4跃迁的709nm发射也较强。另外发现，燃烧法制备的样品在不同激发波长激发时，发射光谱峰形有显著变化。对沉淀法制备的纳米微粒经盐酸“浸蚀”表面修饰后，发现395nm激发时，676nm和693nm发光显著增强，而且693nm发射的激发谱中存在两个宽激发带。对表面修饰后样品的变温发光特性研究发现，随着温度的降低，676nm发射显著增强，而693nm发射显著减弱。对于上述现象通过纳米微粒的表面效应和缺陷态进行了分析和解释。

Solid State Laser TechnologiesPhotorefractive and Nonlinear OpticsLuminescence Properties of Advanced Materials

Diffusion Property in Interlayer Water of Expansible Clay Mineral

Junghae Choi、Byung‐Gon Chae、Chul-Min Chon2012-01-01OpenAlex

The numerical modeling and simulation have been used increasingly as tools for examin- ing and interpreting the bulk structure and properties of materials. The use of molecular dynamics (MD) simulations to model the structure of materials is now both widespread and reasonably well understood. In this research, we intr…

NMR spectroscopy and applicationsClay minerals and soil interactionsGlass properties and applications

Dy—Al-Ti三元合金系600℃等温截面研究

T.H. Ming、曾令宏、卿培林等 4 位作者2012-01-01表面技术

采用真空电弧炉熔炼和真空管退火，制得Dy—A1-Ti三元合金试样，通过X射线衍射（XRD）分析，并辅以差热分析（DTA）、扫描电子显微镜（SEM）分析、能谱仪（EDS）分析等测试技术，对实验样品进行表征，研究了Dy—A1-Ti三元合金系600℃等温截面中的物相关系，确定了Dy—A1-Ti三元系600℃等温截面的两相、三相区边界以及固溶度，并构建了Dy—A1-Ti三元系600℃等温截面相图。研究结果表明，Dy—Al-Ti三元系600℃等温截面由14个单相区、27个两相区和14个三相区组成，并证实了两个三元化合物相Ti4Al43Dy6和Ti2Al20Dy在600℃的存在。

Magnetic Properties of AlloysIntermetallics and Advanced Alloy PropertiesMetallic Glasses and Amorphous Alloys

Sb掺杂对（K_（0.49）Na_（0.51））_（0.94）Li_（0.06）（Nb_（0.94）Ta_（0.06））O_3无铅压电陶瓷结构与性能的影响

肖祖贵、李月明、沈宗洋等 6 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

采用固相反应法制备（K0.49Na0.51）0.94Li0.06Nb0.94SbxTa0.06-xO3（KNNLSxT0.06-x,x=0.00～0.06）无铅压电陶瓷,研究了Sb的掺杂量对陶瓷晶体结构与压电性能的影响。X射线衍射结果表明：随着Sb掺杂量x的增加,陶瓷的晶体结构由正交相向四方相转变,并在x=0.04～0.05时出现正交相逐渐转变为四方相的多型相转变（PPT）,在x=0.04时具有较佳的性能：压电常数d33=258 pC/N,平面机电耦合系数kp=54%,机械品质因素Qm=61以及较高的居里温度Tc=405℃。

Semiconductor materials and interfacesLuminescence Properties of Advanced MaterialsSilicon and Solar Cell Technologies

Mg-Ni-Gd-Ag非晶合金的制备及性能

李双寿、彭浩、黄天佑2012-01-01特种铸造及有色合金

研究了Mg-Ni-Gd-Ag合金的非晶形成能力、力学性能及其影响因素。结果表明,Ag元素部分替代Mg元素可以改善Mg75Ni15Gd10的非晶形成能力,制备尺寸由3mm提高到Mg69Ni15Gd10Ag6的7mm;Ag元素的适量添加可提高非晶合金的断裂强度和塑性,改善力学性能。

Metallurgical and Alloy ProcessesMetallurgy and Material ScienceMetallic Glasses and Amorphous Alloys

МОДЕЛИРОВАНИЕ ВИБРОИЗОЛЯТОРА С МАЛОЙ ЖЕСТКОСТЬЮ ДЛЯ НЕФТЕГАЗОПЕРЕКАЧИВАЮЩЕГО ОБОРУДОВАНИЯ SIMULATION OF VIBROISOLATIVE SUPPORT WITH LOW STIFFNESS FOR OIL AND GAS PUMPING EQUAPMENT

Anvar Valeev、Г. Е. Коробков2012-01-01OpenAlex

The possibility of creating a compact single-element vibroisolative support with a quasi-zero stiffness is shown. Computer simulation of the device is done. The analytical solution for the determination of the vibroisolative support deformation depending on the applied load is presented.

Hydraulic and Pneumatic SystemsVibration Control and Rheological FluidsStructural mechanics and materials

Numerical Description of Interface,Flows in an Electromagnetic Process Devoted to Liquid/Liquid Extraction

Cyril、Courtessole、Jacqueline 等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

In ladle metallurgical process,two liquid layers,a metallic layer below a salty or oxide layer,are separated by an interface where mass transfers occur thanks to redox reactions.Such mass transfers are strongly dependent on the stirring of each phase.By means of induction,a cold crucible reactor can melt,confine and s…

Metallurgical Processes and ThermodynamicsSolidification and crystal growth phenomenaInduction Heating and Inverter Technology

益阳橡机产成1.8m×10m双层平板硫化机

李中宏2012-01-01橡塑技术与装备

益阳橡胶塑料机械集团有限公司紧紧盯住国内外市场最新发展动向,在平板硫化机向超长、超宽发展的同时,积极开发效率高、节能的平板硫化机新产品。2012年7月初,由该公司自主创新开发的1.8 m×10 m双层平板硫化机新产品试车成功。

Polymer Foaming and CompositesPolymer composites and self-healingAerogels and thermal insulation

Preparation of rare-earth element doped Mg_2Si by FAPAS

王丽七、孟庆森、樊文浩2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Rare-earth elements（Re） Sc and Y doped Mg2Si thermoelectric materials were made via a field-activated and pressure-assisted synthesis（FAPAS） method at 1023-1073 K,50 MPa for 15 min.The samples created using this method have uniform and compact structures.The average grain size was about 1.5-2μm,the micro-content of Re…

Chemical and Physical Properties of MaterialsThermodynamic and Structural Properties of Metals and AlloysAdvanced Thermoelectric Materials and Devices

化学镀镍-铼-磷镀层的耐蚀与抗氧化性能

许乔瑜、谢江芳2012-01-01电镀与涂饰

为了提高NiP镀层的耐腐蚀和抗氧化性能，在化学镀镍液中加入铼元素。采用扫描电镜、X射线衍射、能谱等手段，对Q235钢上制备的Ni—P和Ni—Re—P化学镀层的表面形貌、组织结构和成分进行了分析。通过电化学测试技术（包括极化曲线及电化学阻抗谱）和等温增重法分别研究了添加Re前后化学镀镍层的耐蚀性及抗氧化行为。结果表明，与Nj-P镀层相比，Ni—Re-P镀层的极化电阻增大，腐蚀电流密度减小，氧化增重明显降低，其耐蚀性和抗氧化性能得到了提高。

Corrosion Behavior and InhibitionLubricants and Their AdditivesElectrodeposition and Electroless Coatings

Y0．9Pr0．1CrO3的反常磁性

戴玉蓉、邓冬梅、王星宇等 5 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

采用固相反应法制备了YCrO3多晶样品，并首次制备了和Y0．9Pr0．1CrO3多晶样品，研究了其磁性质．在场冷模式下，外加磁场为100Oe时，Y0．9Pr0．1CrO3的磁化强度一温度关系曲线显示磁化反转的异常．在尼尔温度以下，随着温度的降低，磁化强度首先增加，在96K达到最大值，约0．230emu／g．之后磁化强度开始降低，在32K变为零值；并且在32K以下，磁化强度出现负值．这种现象解释为Pr离子的顺磁效应．

Copper-based nanomaterials and applicationsMultiferroics and related materialsHeusler alloys: electronic and magnetic properties

TA15合金在3.5%NaCl盐雾下的腐蚀疲劳性能

吴达鑫、王利发、叶笃毅等 4 位作者2012-01-01稀有金属材料与工程

研究TA15合金在3.5%NaCl盐雾环境和不同应力比（R=-1、0.06,0.5）条件下的腐蚀疲劳性能,并建立合金腐蚀疲劳的Sa-Sm-N曲面方程：N=1.83×1013/[888Sa/（888-Sm）-329.51]3.65。根据疲劳过程中试样循环位移响应得出,TA15合金的循环硬化/软化行为与施加应力比有关。对腐蚀疲劳断口的SEM观察进一步表明,合金在盐雾环境下的裂纹萌生呈现多源特征,且裂纹源区大多呈解理形貌,裂纹扩展区材料抗力变化与应力比相联系。

Erosion and Abrasive MachiningHydrogen embrittlement and corrosion behaviors in metalsSurface Treatment and Residual Stress

Electrical characterization of copper-based nanowire

Hazel Pei Lin Pah2012-01-01DR-NTU (Nanyang Technological University)

Copper nanowires have been frequently researched due to its outstanding electrical conductivity and low cost. In this project, single crystalline copper nanowires had been successfully fabricated by electrodepositing copper into anodized aluminum oxide. Also, dielectrophoresis (DEP) method was carried out to align the…

Conducting polymers and applicationsAnodic Oxide Films and NanostructuresFuel Cells and Related Materials

(Pr 2 (pdc) 3 (Hpdc)(H 2 O) 4 ) n ·n(H3hp)·8n(H 2 O), a One-Dimensional Coordination Polymer Containing PrO6N3 Tri-Capped Trigonal Prisms and PrO 8 N Mono-Capped Square Anti-Prisms

Shahzad Sharif、Onur Şahın、Islam Ullah Khan 等 5 位作者2012-01-01OpenAlex

Abstract: The synthesis, structure and some properties of the one-dimensional coordination polymer, [Pr 2 (pdc) 3 (Hpdc)] n · n (H3hp)·8 n (H 2 O), (H 2 pdc = pyridine 2,6-dicarboxylic acid, C 7 H 5 NO 4 ; 3hp = 3-hydroxypyridine, C 5 H 5 NO) are described. One of the Pr 3+ ions is coordinated by two O,N,O-tridentate…

Crystal structures of chemical compoundsLanthanide and Transition Metal ComplexesMetal-Organic Frameworks: Synthesis and Applications

Effect of varying layouts on the gate temperature for multi-finger AIGaN/GaN HEMTs

王建辉、王鑫华、庞磊等 6 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

The impacts of varying layout geometries on the channel temperature of multi-finger AlGaN/GaN HEMTs are investigated by three-dimensional(3-D) thermal simulations.Micro-Raman thermography is selected to obtain a detailed and accurate temperature distribution of the sample for the verification of the 3-D thermal models…

Thermal properties of materialsGaN-based semiconductor devices and materialsSilicon Carbide Semiconductor Technologies

X-TiO_2（X=Ce,Bi）粉体的光电催化性能的研究

黄长萍、鲁道荣、燕逸飞2012-01-01金属功能材料

采用溶胶-凝胶法制备出纳米X-TiO2（X=Ce,Bi）粉体,并用XRD、UV-Vis DRS对其进行表征,以500W氙灯模拟太阳光,考察改性TiO2粉体的可见光催化活性。采用涂覆法制备出改性TiO2电极,以300 W高压汞灯为侧光源,考察了电极的光电催化性能。实验结果表明：改性TiO2粉体均为锐钛矿型晶相,Ce和Bi的加入不同程度地提高了TiO2在可见光区的吸光强度,Bi和Ce最佳摩尔掺杂量均为0.04%。3种电极光电催化性能先后排序为：TiO2电极〈0.04%Bi-TiO2电极〈0.04%Ce-TiO2电极,循环伏安曲线分析表明,金属离子的掺杂提高了TiO2电极的电催化活性,且Ce的掺杂对电极电催化活性的影响大于Bi。HPLC…

Advanced Nanomaterials in CatalysisChemical Synthesis and ReactionsPolyoxometalates: Synthesis and Applications

超高速转子系统动力学特性（I）：无碰摩转子

陈巍、杜发荣、丁水汀等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

为排查超高速转子系统碰摩故障原因，利用混沌、分岔理论，研究了无碰摩转子系统的动力学特性。以实际转子结构为对象：建立物理模型；由拉格朗日（Lagrange）法建立系统动力学方程；用四阶龙格库塔（Runge—Kutta）法数值求解方程；结合分岔图、轴心轨迹、相图、Poincare映射等手段，分析了无故障转子系统的动力学行为及系统参数变化对其动力特性的影响。结果表明：该转子系统动力学状态过渡过程不明显，在全转速域内，振动以高频低幅为主，高速时具有良好的动力稳定性；扭振特征不明显；质量盘之间的动力耦合效应较弱，有利于系统稳定性；对于单个质量盘，弯振和摆振具有同步性和耦合性，横向振动和扭振动力耦合效应较弱。研究结果说明，该转子结构在冷态条件…

Chaos control and synchronizationVibration Control and Rheological FluidsNonlocal and gradient elasticity in micro/nano structures

지르코늄의 제조(製造)와 재활용기술(再活用技術)

박경태、김승현、홍순익 等 7 位作者2012-01-01OpenAlex

Zr은 고온에서의 높은 치수안정성, 내식성은 물론 낮은 중성자 흡수단면적을 지녀 원자력산업용 소재 중 1차 방사능 차폐재인 핵연료 피복관으로 사용되며 현재까지 다른 소재로 대체 불가능하다. 하지만 Hf을 정제한 Zr sponge 제조기술은 미국, 프랑스, 러시아만 가지고 있어 원자력의존도가 높은 한국에서는 국가전략물자로 분류 철저히 관리되고 있다. 국내 유통되는 Zr의 대부분은 원자력산업에 사용되어 지며 유통구조는 정제된 Zr합금을 국외로부터 수입하여 tube로 가공 후 핵연료집합체로 제조되고, 그 외 소량이 합금첨가원소 및 폭약재 등 고부가가치 일반산업에 사용된다…

Nuclear Materials and PropertiesKorean Peninsula Historical and Political StudiesMolten salt chemistry and electrochemical processes

Fuel Cells Challenges and New Opportunities

Bin Zhu2012-01-01OpenAlex

Fuel cells, or specifically on solid oxide fuel cells (SOFCs) are complex electrochemical energy conversion devices, compared to conventional thermal power system with the advantages of high conversion efficiency, low emissions and zero noise. Throughout the 100 years of history of SOFCs development, a number of chall…

Electronic and Structural Properties of OxidesFuel Cells and Related MaterialsAdvancements in Solid Oxide Fuel Cells