November 20～30, 2011 Weak demand resulted in the slack rare earth market. Consumers did not intend to replenish invento......

The effects of two different heat-treatment atmospheres,nitrogen atmosphere and reducing nitrogen atmosphere with carbon......

以(NH2)2CO为沉淀剂,在SDS模板剂结构导向下,采用均匀沉淀法制备出纳米结构的氧化钇催化材料.反应时间小于36h,生成晶体相较好的钇......

以AgCu10合金为对象，研究和探讨了离子注入提高电接触材料的抗氧化和抗磨损性能并改善电接触微动磨损的技术。试验结果表明，离子注入......

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以Mg6Zn2Y为基础研究了Zn、Y含量的变化对Mg-Zn-Y基合金组织和性能的影响.结果表明铸态下增加1%Zn的合金的组织变得粗大,抗拉强度......

Isothermal and cyclic oxidation behaviors of pure and yttrium-implanted nickel were studied at 1000℃ in air. The oxide ......