材料期刊网

Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill

LI Wei-gang , GUO Zhao-hui , YI Jian , LIU Xiang-hua

钢铁研究学报(英文版)

An optimization solution to roll shifting strategy for alternately rolling campaign is presented. All the strips in a rolling campaign are divided into narrow strips and wide ones, and shifting position of narrow strips is obtained by the recursive method, and then shifting position of wide strips i...

关键词: hot strip mill , alternately rolling , work roll shifting , NSGA-II , pareto optimal solution

0℃时YI3-C6H12N4·HI-H2O的相图及YI3·C6H12N4·HI·14H2O的合成与表征

王丽 , 吴希文 , 张晨鼎 , 张通 , 简丽 , 武朝军 , 周涛

稀土 doi:10.3969/j.issn.1004-0277.1999.02.003

采用湿渣法研究了0℃时碘化钇(YI3)-乌洛托品氢碘酸盐(C6H12N4.HI)-水(H2O)的三元体系相平衡,绘制了该体系的等温溶解度相图,相图分析结果表明,该体系中有组成为YI

关键词: 相平衡 , 碘化钇 , 乌洛托品氢碘酸盐 , 配合物

Jian ZHANG/Langhong Lou

材料科学技术（英文）

关键词:

白色开金的色度参数和白色分级

宁远涛

贵金属

评述了合金元素对Au的漂白效果和机制，介绍了白色开金的几种色度参数，如CIE-L a*b*色度参数和颜色盒，CIE-LAB-C-H-L米制色度参数和基于CIE-XYZ色度参数的ASTM D1925黄色指数YI，讨论了某些白色开金的色度参数...

关键词: 金属材料 , Au合金 , 白色开金 , 色度参数 , 色度图

抗氧剂在聚丙烯中的应用研究

徐旸 , 汪艳 , 傅轶

合成材料老化与应用

采用多次挤出的方法和氧化诱导期(OIT)方法考察了抗氧剂对聚丙烯热氧稳定性的影响,测定了各次挤出试样的熔体流动速率(MFR)、黄度指数(YI)、力学性能以及氧化诱导期(OIT).实验结果表明:添加由主抗氧剂1010和辅抗氧剂168组成的复...

关键词: 聚丙烯 , 抗氧剂 , 热稳定性

DL-EPR法评价2205双相不锈钢晶间腐蚀敏感性

徐菊良 , 邓博 , 孙涛 , 李劲 , 蒋益明

金属学报 doi:10.3724/SP.J.1037.2009.00598

利用Thermo-Calc软件并结合金相显微镜,定性研究了2205双相不锈钢在800℃下敏化不同时间后的微观组织演变过程.通过研究扫描速率、介质成分、介质温度和试样表面状态优化了双环电化学动电位再活化法(DL-EPR),并用该优化方法研究了2205双相不锈钢晶间腐蚀敏感性.结果表明:DL-EPR法能...

关键词: 2205双相不锈钢 , DL-EPR , 晶间腐蚀敏感性 , σ相

Mean-field theory for ferroelectricity in Ca(3)CoMnO(6)

Physical Review B

An elastic Ising model for CoMnO(6) chain is proposed to explain the ferroelectricity induced by collinear magnetic order in Ca(3)CoMnO(6), and then a mean-field theory with interchain spin interactions based on this model is developed. With inclusion of the dynamics of polarization domains at finit...

关键词: calcium compounds;cobalt compounds;dielectric polarisation;ferroelectricity;Ising model;magnetic susceptibility;multiferroics;optical susceptibility;one-dimensional oxides;magnetic-properties;multiferroics;ca3co1+xmn1-xo6

闪烁晶体用高纯无水稀土卤化物的制备与表征

余金秋 , 彭鹏 , 刁成鹏 , 吴浩 , 何华强

人工晶体学报

LaBr3 ∶Ce、LuI3 ∶Ce、SrI2 ∶Eu等新型卤化物闪烁晶体因其高光输出、高能量分辨率等优异的闪烁特性而引起人们的广泛关注.高纯无水稀土卤化物是生长上述闪烁晶体所必需的原料,但其制备困难和高昂成本,严重制约了这些晶体的发展和应用.本文报道了无水LaBr3、CeBr3、LaCl3、CeC...

关键词: 闪烁晶体 , 稀土卤化物 , 制备 , 表征

化学成分对TiC-Ni系金属陶瓷显微组织的影响

章晓波 , 刘宁 , 袁红梅 , 荣春兰

硬质合金 doi:10.3969/j.issn.1003-7292.2008.01.002

为探究Mo、WC、ZrC对TiC-Ni系金属陶瓷组织的影响,真空烧结制备了TiC-Ni系金属陶瓷.利用X射线衍射仪(X-ray diffraction,XRD)、扫描电子显微镜(scanning electron microscope,SEM)、能谱仪(energy dispersive spect...

关键词: 金属陶瓷 , 显微组织 , 微裂纹 , 断裂韧性

Fused thiophene-split oligothiophenes with high ionization potentials for OTFTs

Synthetic Metals

Fused thiophene-split oligothiophenes were synthesized by Suzuki coupling. The relationship between the structure of these fused thiophene-split oligothiophenes and DH-6T (alpha.omega-dihexylsexithiophene) and their performance in OTFTs was discussed. The realignment of HTTfTTTH (2,5-bis-(5'-hexyl-[...

关键词: OTFT;Fused thiophene;Oligothiophene;Ionization potential;Air;stability;thin-film transistors;field-effect transistors;high-mobility;organic;semiconductors;carrier mobility;copolymers;oligomers;performance;polymers