ORDER FORM FOR SMM ’94 PROCEEDINGS

ＯＲＤＥＲＦＯＲＭＦＯＲＳＭＭ’９４ＩｗｏｕｌｄｌｉｋｅｔｏｏｒｄｅｒｃｏｐｉｅｓｏｆＳＭＭ’９４ＵＳ＄１３０ＸＰｌｅａｓｅｓｅｎｄｉｔｂｙａｉｒｍａｉｌ［］ＵＳ＄２０Ｘｂｙｓｕｒｆａｃｅｎｉａｉｌ［］（ｎｏｓｕｒｃｈａｒｇｅ）ＴｏｔａｌＭａｉｌｉｎ...     

Mechanochemical Effects on Synthesis of Bi-Pb-Sr-Ca-Cu-O Superconductor

ＭｅｃｈａｎｏｃｈｅｍｉｃａｌＥｆｅｃｔｓｏｎＳｙｎｔｈｅｓｉｓｏｆＢｉＰｂＳｒＣａＣｕＯＳｕｐｅｒｃｏｎｄｕｃｔｏｒＬｉＸｉｍｉｎｇ（李希明）ＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉｃａｌＭｅｔａｌｕｒｇｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉ...     

Microstructure and preparation of nano S-W-S new solid lubrication system

1　ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔｔｈｅｓｏｌｉｄｌｕｂｒｉｃａｔｉｏｎｍａｔｅ ｒｉａｌｓｃｏｍｍｏｎｌｙｕｓｅｄａｔｈｉｇｈｔｅｍｐｅｒａｔｕｒｅｓ ,ｌｏｗｔｅｍ ｐｅｒａｔｕｒｅｓｏｒ(ａｎｄ)ｉｎｖａｃｕｕｍａｒｅ ｇｒａｐｈｉｔｅ ,ｍｅｔａｌｌｉｃｓｕｌｐｈｉｄｅＭＸ2 (ｗｈｅｒｅＭｓｔａｎｄｓｆｏｒＷａｎｄＭｏ ,ＸｆｏｒＳ ,ＳｅａｎｄＴｅ) ,Ｃ60 ａｎｄｅｔｃ .Ｔｈｅｇｏｏｄｌｕｂｒｉｃａｔｉｏｎｐｒｏｐｅｒｔｙｏｆｔｈｅｓｅｃｏｎｖｅｎｔｉｏｎａｌｓｏｌｉｄｌｕ…     

Gas Source Molecular Beam Epitaxy Growth of Si_(1-x)Ge_x/Si Alloys

ＧａｓＳｏｕｒｃｅＭｏｌｅｃｕｌａｒＢｅａｍＥｐｉｔａｘｙＧｒｏｗｔｈｏｆＳｉ１－ｘＧｅｘ／ＳｉＡｌｏｙｓＬｉｕＸｕｅｆｅｎｇ，ＬｉＪｉａｎｐｉｎｇａｎｄＳｕｎＤｉａｎｚｈａｏ（刘学锋）（李建平）（孙殿照）ＭａｔｅｒｉａｌＳｃｉｅｎｃｅＣｅｎｔｅｒ...     

Kinetic Study of Phase Transformations in Zr-Cr-Fe Alloy

ＫｉｎｅｔｉｃＳｔｕｄｙｏｆＰｈａｓｅＴｒａｎｓｆｏｒｍａｔｉｏｎｓｉｎＺｒ－Ｃｒ－ＦｅＡｌｌｏｙＳｕｎＸｉｃｈｅｎａｎｄＤｅｒｅｋＯ．Ｎｏｒｔｈｗｏｏｄ（孙喜臣）（ＤｅｐａｒｔｍｅｎｔｏｆＭｅｃｈａｎｉｃａｌＥｎｇｉｎｅｅｒｉｎｇＵｎｉｖｅｒｓｉｔ...     

STRUCTURAL AND MAGNETIC PROPERTIES OF ( PrxSm1 - x ) Mn2Si2

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｅｒｎａｒｙｌａｙｅｒｅｄｉｎｔｅｒｍｅｔａｌｉｃｃｏｍｐｏｕｎｄｓＲＭｎ２Ｘ２（Ｒ＝ｒａｒｅｅａｒｔｈａｎｄＸ＝Ｓｉ,Ｇｅ）ｈａｖｅｂｅｃｏｍｅｏｆｒｅｎｅｗｅｄｉｎｔｅｒｅｓｔｒｅｃｅｎｔｌｙｂｅｃａｕｓｅｏｆｔｈｅｌ...     

Microstructure and Application of YBCO Superconductive Films with Low Surface Resistance

ＭｉｃｒｏｓｔｒｕｃｔｕｒｅａｎｄＡｐｐｌｉｃａｔｉｏｎｏｆＹＢＣＯＳｕｐｅｒｃｏｎｄｕｃｔｉｖｅＦｉｌｍｓｗｉｔｈＬｏｗＳｕｒｆａｃｅＲｅｓｉｓｔａｎｃｅＷａｎｇＸｉａｏｐｉｎｇ，ＹａｎｇＢｉｎｇｃｈｕａｎ，ＳｈｉＤｏｎｇｑｉ，ＰｅｎｇＺｈｅｎｇ...     

Thermodynamic Assessment of Gd-Ni System

ＴｈｅｒｍｏｄｙｎａｍｉｃＡｓｓｅｓｓｍｅｎｔｏｆＧｄ－ＮｉＳｙｓｔｅｍＳｕＸｕｐｉｎｇ；ＺｈａｎｇＷｅｉｊｉｎｇａｎｄＤｕＺｈｅｎｍｉｎ（苏旭平）（张维敬）（杜振民）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎｅｅｒｉ...     

Thermodynamic Assessment of Dy-Co System

ＴｈｅｒｍｏｄｙｎａｍｉｃＡｓｓｅｓｓｍｅｎｔｏｆＤｙ－ＣｏＳｙｓｔｅｍＳｕＸｕｐｉｎｇ；ＺｈａｎｇＷｅｉｊｉｎｇａｎｄＤｕＺｈｅｎｍｉｎ（苏旭平）（张维敬）（杜振民）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎｅｅｒｉ...     

Thermodynamic Description of Ni-Co-Gd System

ＴｈｅｒｍｏｄｙｎａｍｉｃＤｅｓｃｒｉｐｔｉｏｎｏｆＮｉＣｏＧｄＳｙｓｔｅｍ①ＳｕＸｕｐｉｎｇ，ＺｈａｎｇＷｅｉｊｉｎｇａｎｄＤｕＺｈｅｎｍｉｎ（苏旭平）（张维敬）（杜振民）ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎ...     

多硫化物浸取含金硫化矿的研究

采用多硫化物浸取含金硫化金精矿，考察各种因素对金浸取的影响，分析浸取过程中Ｓ＾２－ｘ浓度的变化及其与金浸出的关系。     

Leaching Behavior of Complex Copper Sulphide Concentrate with Ferric Chloride by Microwave Irradiation

ＬｅａｃｈｉｎｇＢｅｈａｖｉｏｒｏｆＣｏｍｐｌｅｘＣｏｐｐｅｒＳｕｌｐｈｉｄｅＣｏｎｃｅｎｔｒａｔｅｗｉｔｈＦｅｒｒｉｃＣｈｌｏｒｉｄｅｂｙＭｉｃｒｏｗａｖｅＩｒａｄｉａｔｉｏｎＤｉｎｇＷｅｉａｎ（丁伟安）ＧｅｎｅｒａｌＲｅｓｅａｒｃｈＩｎｓｔｉｔｕ...     

一种新的添加剂(Re-1)在硫脲浸金中的应用

报道了一种用于硫脲法浸金过程的新的Re－1型溶金添加剂,实验证实该添加剂可以改善硫脲浸金液状态,降低浸液硫脲浓度,提高金出率。可使含砷硫化原生矿的一次金浸出率达到89％以上。同时,测定了工艺的最佳条件并讨论了Re－1添加剂对浸金机理的影响。     

Leaching process of germanium oxide dust

A thermodynamic analysis on the acid leaching process of germanium oxide dust and discussion on the behaviors of main substances of the dust in the leaching process were carried out. The effects of temperature, acid concentration, leaching time and stirring speed on the leaching rate of germanium were investigated. Based on the characteristic of the dust, the kinetics and reactive mechanism of acid leaching were stud- ied. The results show that the leaching of the dust by acid belonged to "the unreacted core shrinking model" of producing solid outgrowth layer. The chemical reaction was controlled by inner diffusion process. The apparent activation energy of leaching process was 12.60 kJ/mol. The leaching reaction of germanium was determined to be mainly second order reaction. The optimum conditions were the reaction tem- perature of 363 K, the leaching time of 2.5 h, the stirring speed of 120 r/min, the solid-to-liquid ratio of 1/8 and the acid concentration of 120 g/L. Under these conditions, the leaching rate of germanium can come up to more than 87%.     

Metastable bcc Ni produced by rod milling and chemical leaching

Nanocrystalline Al₆₀Ni₄₀ and Ni have been obtained by rod milling Al and Ni powder mixtures and chemical leaching Al atoms from the rod-milled Al₆₀Ni₄₀, respectively. The rod-milled alloy powders retained their bcc structure after being treated at room temperature and at 85 °C with a 25–30 wt.% KOH solution. The leached powders are very active and easily explode when they come into contact with air. The leached powders were transformed to a ferromagnetic fcc phase at high temperature. On cooling of the specimen from 600 °C, spontaneous magnetization M sharply increased at about 350 °C, indicating that the bcc phase was transformed to an fcc phase. It has been confirmed that the leaching temperature and annealing temperature and KOH concentration have a considerable effect on structural and magnetic properties.     

孔隙率对氧化铝基可溶陶瓷型芯性能的影响

氧化铝基陶瓷型芯的可溶性是影响型芯应用于制造高性能燃机叶片的关键。研究了孔隙率对氧化铝基陶瓷型芯性能影响的规律。结果表明,型芯的溶失过程主要是莫来石相的溶失;型芯溶失性随着孔隙率的增加呈先增加后趋于稳定的变化规律,型芯强度则逐渐下降。当孔隙率为41.8%时溶失速率可达7.6mg/min,室温抗折强度超过14MPa;单次碱煮时间不宜超过4h。     

富银低品位锰矿和闪锌矿的联合氧压酸浸

进行了硫化锌和含银低品位锰矿联合氧压酸浸的小型试验,以考察影响浸出的各种因素,诸如浸出温度、浸出时间、氧分压和搅拌速度.实验在2L的高压釜内进行.实验结果表明,硫化锌和含银低品位锰矿能相互促进浸出,但这种耦合作用须在一定条件下才会起作用.作者对一些浸出做了探讨.为下一步扩大试验的需要,本文给出了合理的浸出条件:浸出温度, 110℃; 浸出时间,2h; 氧分压, 0.6MPa; 硫酸用量, 1.2倍理论用量.     

Separation and Concentration of Indium from Leaching Solution Containing Indium, Antimony and Iron Ions

1 ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｄｉｕｍｉｓａｎｉｍｐｏｒｔａｎｔｍｅｔａｌ[1 ],ａｎｄｉｓｗｉｄｅｌｙｕｓｅｄｉｎｅｌｅｃｔｒｉｃｉｎｄｕｓｔｒｙ ,ａｔｏｍｉｃｅｎｅｒｇｙｉｎｄｕｓｔｒｙ,ｃｈｅｍｉｓｔｒｙｉｎｄｕｓｔｒｙａｎｄｍａｎｕｆａｃｔｕｒｉｎｇｆｕｓｉｂｌｅａｌｌｏｙ,ｅｔｃ.Ｂｅｃａｕｓｅｉｎｄｉｕｍａｂｕｎｄａｎｃｅｉｎｔｈｅｅａｒｔｈｃｒｕｓｔｉｓｏｎｌｙ 1× 10 - 5%ａｎｄｒｅｓｅｒｖｅｓｗｉｔｈｏｔｈｅｒｍｉｎｅｓｓｕｃｈａｓｓｐｈａｌｅｒｉｔｅ,ｇａｌｅｎａ ,ｅｔｃ.Ｓｏｔｈｅｍ…     

Process optimization and kinetics for leaching of cerium,lanthanum and neodymium elements from iron ore waste's apatite by nitric acid

The leaching of rare earth elements (REEs) including cerium, lanthanum and neodymium from apatite concentrate obtained from iron ore wastes by nitric acid was studied. The effects of nitric acid concentration, solid to liquid ratio and leaching time on the recoveries of Ce, La and Nd were investigated using response surface methodology. The results showed that the acid concentration and solid to liquid ratio have significant effect on the leaching recoveries while the time has a little effect. The maximum REE leaching recoveries of 66.1%, 56.8% and 51.7% for Ce, La and Nd, respectively were achieved at the optimum leaching condition with 18% nitric acid concentration, 0.06 solid to liquid ratio and 38 min leaching time. The kinetics of cerium leaching was investigated using shrinking core model. It was observed that the leaching is composed of two stages. In the first stage a sharp increase in cerium leaching recovery was observed and at the longer time the leaching became slower. It was found that in the first stage the diffusion of reactants from ash layer is the rate controlling mechanism with an apparent activation energy of 6.54 kJ/mol, while in the second stage the mass transfer in the solution is the controlling mechanism.     

低钒转炉钢渣提钒湿法工艺的动力学研究

为了提高湿法浸出低钒钢渣中钒的浸出效率,并对湿法浸出低钒钢渣中钒提供理论依据,从动力学角度分析整个浸出过程。考察温度、液固比、硫酸质量分数和搅拌速率对浸出过程的影响。研究结果表明:在90℃、液固比为10?1以及硫酸浓度6.0mol/L时,浸取9h,低钒钢渣中钒的浸出率可达到95.3%。通过正交实验和动力学推导,得到描述浸出过程的经验方程,低钒钢渣湿法浸出钒的动力学模型为收缩核动力学模型,浸出过程的表观活化能为12.794kJ/mol,该模型表明浸出过程中的控制步骤取决于固膜扩散速率。提高温度、液固比和硫酸质量分数,均可加速钒的浸出速度,提高钒的浸出率。