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(cryomilling) and then by hot pressing in vacuum. By using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), the microstructure evolution of the material during cryomilling and consolidation was investigated. With increasing the mill- ing time, the grain size decreased sharply and reduced to 42 nm when cryomilled for 12 h. The grains had grown......
Surface Passivation of Nanocrystalline Silicon Powder Derived from Cryomilling王志浩1,HUANG Zhifeng1,陈斐1,2,SHEN Qiang1,ZHANG Lianmeng1,21. State Key Lab of Advanced Technology for Materials Synthesis..., using a cryomilling technology. The X-ray diffraction, transmission electron microscopy, plasma emission spectroscopy and infrared spectrum were used to analyze the prepared samples, and density......
Nanostructured Al-Zn-Mg-Cu alloy synthesized by cryomilling and spark plasma sintering CHEN Han-bin(陈汉宾)1, TAO Kai(陶 凯)2, YANG Bin(杨 滨)2, ZHANG Ji-shan(张济山)2 1. No.59 Institute of China Ordnance...; Abstract: Nanocrystallized Al-10.0%Zn-3.0%Mg-1.8%Cu (mass fraction) alloy powder was prepared by cryomilling, and then the nanostructured powder was consolidated into bulk material by spark plasma......
Synthesis and characterization of nanocrystalline Ni produced by cryomilling in liquid nitrogenYANG Bin1, 2), FAN Jianzhong3), HAO Bin1), TIAN Xiaofeng3), CHENG Junsheng1), and ZHANG Jishan1) 1...="ChDivSummary" name="ChDivSummary">Nanocrystalline Ni powders were successfully fabricated by mechanically milling at cryogenic temperature (cryomilling)with 1 wt.%Y2O3 particles. The experimental results......
; Abstract: The nanocrystalline Al-Zn-Mg-Cu alloy powders were synthesized using cryomilling. Deformation twins and twinning at ambient temperature were observed in Al-Zn-Mg-Cu powders. Experimental results indicate that high strain rate at low temperature during cryomilling induces the formation of deformation twins by the climbing......
with DBDP, whereas a minimum average grain size of 8.4nm was obtained by cryomilling at -20℃; however, it is difficult to refine the particle size and grain size under the same milling condition in the absence of DBDP and cryogenic temperature. Key words:ball milling; cryomilling; dielectric barrier discharge (DBD); anoparticle; [全文内容正在添加中] ......
nanocrystalline Al-Zn-Mg-Cu alloy with high thermal stability by cryomilling CHENG Jun-sheng1, CHEN Han-bin1, YANG Bin1, FAN Jian-zhong2, TIAN Xiao-feng2, ZHANG Ji-shan1 (1. State Key Laboratory for Advanced...: The preparation of bulk nanocrystalline Al-10Zn-3Mg-1.8Cu (mass fraction, %) alloy by mechanically milling at cryogenic temperature (cryomilling) and hot pressing in vacuum was studied. By X-ray diffraction (XRD......
) Abstract: Bulk nanocrystalline Al-Zn-Mg-Cu alloy was fabricated by cryomilling combined with vacuum hot pressing and extrusion. The aging-curve was obtained. The crystal structures and microstructures... to 100 nm even part of them reach 200 nm after heat-treatment. Key words:aluminum alloy; bulk nanocrystalline; cryomilling; solid-solution; aging; microstructure  ......
using the cryogenic ball milling(cryomilling) method. The morphology,microstructure,size distribution,and phase transformation of the powders were characterized by scanning electron microscopy(SEM) ,laser scattering for particle size analysis,X-ray diffraction(XRD) ,and transmission electron microscopy(TEM) . After cryomilling for 20 h,the average grain size of the as-milled powders approached......
nanostructured Al-10.0Zn-2.8Mg-1.8Cu alloy was synthesized by cryomilling first and then by spark plasma sintering (SPS), and the effect of heat treatment on the microstructures and mechanical properties......