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Preparation and Characterization of Nanocomposite MgFe2O4/SiO2徐莉College of Science, Nanjing Forestry University摘 要:Nanocomposites MgFe2O4/SiO2 were successfully synthesized by the sol-gel method in the presence of N, N-dimethylformamide (DMF). The formation of pure MgFe2O4 was confirmed by powder X-ray diffraction (XRD) and electron diffraction......
Preparation and characterization of SDC nanorods/LNC nanocomposite electrolyte许飞,李传明,汪镇涛,叶祝鹏,张渊,曾燕伟State Key Laboratory of Materials-oriented Chemical Engineering, School of Materials Science and Engineering, Nanjing Tech University摘 要:The nanocomposite electrolytes composed of Sm0.2Ce0.8O1.9(SDC) nanorods enclosed by {110} and {100} facets and a binary......
Preparation and characterization of SDC nanorods/LNC nanocomposite electrolyte许飞,李传明,汪镇涛,叶祝鹏,张渊,曾燕伟State Key Laboratory of Materials-oriented Chemical Engineering, School of Materials Science and Engineering, Nanjing Tech University摘 要:The nanocomposite electrolytes composed of Sm0.2Ce0.8O1.9(SDC) nanorods enclosed by {110} and {100} facets and a binary......
纳米晶W-Cu合金粉体的冷压成形研究 潘保武1,赵捍东1 (1.华北工学院材料工程系,山西太原 030051) 摘要:研究了纳米晶W-Cu微粉在模压及冷等静压工艺下成形特性的对比．试验证明600 MPa压力下,冷等静压成形工艺较模压工艺获得的坯体致密度高于15%,但冷等静压工艺中的包套除气对坯体致密度及性能有较大的影响． 关键词:纳米晶; 冷等静压; 模压; [全文内容正在添加中] ......
by hydrogen reduction. The morphological characteristics and phase transformation of the combusted powder and the Fe-Ni-Y2O3 nanocomposites were characterized by XRD, FESEM and TEM. Porous Fe-Ni-Y2O3.... The Fe-Ni-Y2O3 nanocomposite reduced at 900 °C has the maximum saturation magnetization and the minimum coercivity values of 167.41 a/(m2·kg) and 3.11 kA/m, respectively.Key words:nanocomposite......
钨铜粉轧生坯制备客观化判据 朱玉斌1,周智耀1,杨宁1,王喆1,詹土生1 (1.上海大学,上海,200072) 摘要:研究W-Cu粉末轧制生坯制各流程的客观化判据,初步得到W-Cu粉轧生坯制备的客观方法框架.基于混料扭矩的变化趋势,确定粉末与粘结剂的最佳配比.基于差热/热重分析结果,确定粉体的烘干温度和烘干时间.基于质量守恒定律,确定粉轧生坯的致密度.研究方法以材料自身的物理和化学特性指标为依据,能够很大程度减少人为因素的影响,提高粉轧生坯制备流程的稳定性. 关键词:钨铜; 客观判据; 粉末装载量; 粉轧; 密度; W-Cu; objective criterion; powder loading; powder rolling; density; [全文内容正在添加中] ......
高性能药型罩用W-Cu复合材料的研究与应用舒大禹1,2,陈强1,2,胡传凯1,2,康凤1,2,黄树海1,2,林军1,2,宁海青1,2,赵祖德1,21. 中国兵器工业第五九研究所2. 国防科技工业精密塑性成形技术研究应用中心摘 要:介绍了W-Cu复合材料的应用,制备和致密化技术,以及高性能药型罩用W-Cu复合材料的研究进展及应用现状,并展望了W-Cu复合材料的进一步应用与发展.关键词:W-Cu复合材料;药型罩;射流;侵彻;......
共还原法制备W-Cu复合粉王久维,都业志摘 要:利用CuWO4+0 .95 8WO3 前驱体还原方法制备Cu -W复合粉.试验结果表明 ,共还原法制备的Cu/W复合粉两相分布均匀 ,还原温度是影响复合粉体的关键因素. 70 0℃还原时 ,不能形成W包覆Cu相结构 ,80 0℃还原时 ,形成W对Cu相的部分包覆关键词:W-Cu复合粉;前驱体;氢气还原;......
was prepared with Zn-Al alloy powder and Zn-Al nanocomposite coating was prepared through adding ZrO2 to the as-prepared coating. The corrosion resistance of coatings was evaluated employing... dissolution resistance and delay the consumption rate of Zn-Al powder and improve the cathodic protection period of coating. The corrosion resistance of Zn-Al nanocomposite coating is the best when......
be obtained from the saponification of poly (glycino amino ester)phosphazenes at room temperature. The resulting QDs-polymer nanocomposite particles can form colloidally stable suspensions in water and exhibit good photostability. Key words: polyphosphazenes; CdSe/ZnS quantum dots; water-solublity; nanocomposite particles ......
