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Production and Characterization of Nano Structured Silicon Carbide by High Energy Ball Milling
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作者 J. Babu Rao Dil Kush NRMR Bhargava 《Journal of Minerals and Materials Characterization and Engineering》 2012年第5期529-541,共13页
The article has been retracted due to the investigation of complaints received against it. The Editorial Board found that substantial portions of the text came from other published paper. Comparing with the paper publ... The article has been retracted due to the investigation of complaints received against it. The Editorial Board found that substantial portions of the text came from other published paper. Comparing with the paper published in International Journal of Engineering, Science and Technology Vol. 3, No. 4, 2011, pp. 82-88 (www.ijest-ng.com), these two papers have the same contents before Figure 7 and the author added Fig. 8, 9, 10 on the 2012 paper. The scientific community takes a very strong view on this matter, and the Journal of Minerals and Materials Characterization and Engineering (JMMCE) treats all unethical behavior seriously. This paper published in Vol.11 No.5, 529-541, 2012 has been removed from this site. 展开更多
关键词 Nano PARTICLES silicon carbide high energy ball milling X-RAY DIFFRACTION SEM.
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高能球磨制备纳米WC-8Co复合粉末 被引量:6
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作者 范景莲 马运柱 +1 位作者 刘涛 艾宪平 《中国钨业》 CAS 2004年第4期22-25,共4页
对采用高能球磨法制备纳米WC-8Co复合粉末的工艺条件进行了研究。实验采用逐步优化方式,研究液固比、球料比、球磨转速、球磨时间对粉末的特性的影响。采用SEM扫描电镜观察粉末形貌,用EDX能谱分析了粉末中Co元素的分布,检测了粉末中Co... 对采用高能球磨法制备纳米WC-8Co复合粉末的工艺条件进行了研究。实验采用逐步优化方式,研究液固比、球料比、球磨转速、球磨时间对粉末的特性的影响。采用SEM扫描电镜观察粉末形貌,用EDX能谱分析了粉末中Co元素的分布,检测了粉末中Co的化学成分,确定了液固比参数,通过检测粉末的比表面和BET粒度的变化优化球料比、球磨转速及球磨时间等工艺参数,采用最优化工艺得到了粉末比表面为6.82m2/g、BET粒度为59.4nm,Co相分布均匀的纳米WC-8Co复合粉末。 展开更多
关键词 复合粉末 纳米 通过检测 制备 球磨时间 比表面 粒度 高能球磨 液固比 WC
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SiC纳米粉体的高能球磨制备方法 被引量:2
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作者 程秀 揭晓华 +1 位作者 蔡莲淑 谢光荣 《新技术新工艺》 北大核心 2003年第11期41-42,共2页
以工业SiC粉末为原料,用高能球磨机制备了SiC纳米粉。用扫描电镜、X射线衍射仪对球磨后的粉末进行了形貌观察和相结构分析,统计了SiC粉体尺寸随球磨时间的变化规律。结果表明,随着时间的延长,粉末逐渐细化至纳米级,可以细化到30nm左右,... 以工业SiC粉末为原料,用高能球磨机制备了SiC纳米粉。用扫描电镜、X射线衍射仪对球磨后的粉末进行了形貌观察和相结构分析,统计了SiC粉体尺寸随球磨时间的变化规律。结果表明,随着时间的延长,粉末逐渐细化至纳米级,可以细化到30nm左右,但球磨时间超过25h后粉末颗粒继续细化的速度明显放慢。 展开更多
关键词 SIC 纳米粉体 高能球磨 制备 扫描电镜 X射线衍射仪
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纳米晶掺钇硬质合金粉末的制备 被引量:2
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作者 刘沙 刘刚 +1 位作者 杨贵彬 黄泽兰 《中国稀土学报》 CAS CSCD 北大核心 2003年第6期677-680,共4页
采用高能球磨法制备了纳米晶掺Y硬质合金粉末。用XRD,SEM和DTA等分析检测手段,研究了纳米晶掺Y硬质合金粉末的结构、形貌和相的变化。结果表明:高能球磨45h,可获得晶粒尺寸约为8nm的掺Y硬质合金粉末;微量Y的加入,有利于硬质合金粉末晶... 采用高能球磨法制备了纳米晶掺Y硬质合金粉末。用XRD,SEM和DTA等分析检测手段,研究了纳米晶掺Y硬质合金粉末的结构、形貌和相的变化。结果表明:高能球磨45h,可获得晶粒尺寸约为8nm的掺Y硬质合金粉末;微量Y的加入,有利于硬质合金粉末晶粒的细化;在25~45h范围内,随着高能球磨时间的延长,粉末晶粒尺寸减小,且掺Y硬质合金粉末的晶粒尺寸比未掺Y的硬质合金粉末晶粒尺寸要细一倍;高能球磨25h,粉末中Co相的X射线衍射峰消失。高能球磨掺Y硬质合金粉末的DTA曲线在626℃出现了1个尖锐的放热峰。高能球磨掺Y硬质合金粉末固结之后,其合金晶粒细小,机械性能较好。 展开更多
关键词 金属材料 纳米硬质合金 制备 高能球磨法 稀土 掺杂 晶粒 机械性能
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Functionally Graded Dual-nanoparticulate-reinforced Aluminium Matrix Bulk Materials Fabricated by Spark Plasma Sintering 被引量:2
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作者 Hansang Kwon Marc Leparoux Akira Kawasaki 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2014年第8期736-742,共7页
Functionally graded(FG) carbon nanotubes(CNT) and nano-silicon carbide(nSiC) reinforced aluminium(Al)matrix composites have been successfully fabricated using high-energy ball milling followed by solid-state s... Functionally graded(FG) carbon nanotubes(CNT) and nano-silicon carbide(nSiC) reinforced aluminium(Al)matrix composites have been successfully fabricated using high-energy ball milling followed by solid-state spark plasma sintering processes.The CNTs were well-dispersed in the Al particles using the nSiC as a solid mixing agent.Two different types of multi-walled CNTs were used to add different amounts of CNTs in the same volume.The ball milled Al—CNT—nSiC and Al—CNT powder mixtures were fully densified and demonstrated good adhesion with no serious microcracks and pores within an FG multilayer composite.Each layer contained different amounts of the CNTs,and the nSiC additions showed different microstructures and hardness.It is possible to control the characteristics of the FG multilayer composite through the efficient design of an Al—CNT—nSiC gradient layer.This concept offers a feasible approach for fabricating the dualnanoparticulate-reinforced Al matrix nanocomposites and can be applied to other scenarios such as polymer and ceramic systems. 展开更多
关键词 Carbon nanotubes(CNT) silicon carbide high-energy ball milling Spark plasma sintering(SPS) Functionally graded materials(FGM)
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