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="ChDivSummary">Y(NO3)3 and NH3·H2O were used as a raw materials,and nano-Y2O3 powder was successfully synthesized by a precipitation method.Employing TEOS as a raw material,SiO2 powder was successfully prepared by a alkoxide-hydrolysis method,and a Y2O3/SiO2 composite powder was obtained by coating.The Y2O3,SiO2,and Y2O3/SiO2 powders were characterized using X-ray diffraction(XRD),scanning electron......
ON ZrO2-NiCr COMPOSITE POWDER FOR SPRAYING邱凤襄,罗志平,邵刚勤,潘牧摘 要:<正>Composite powder prepared of calcium ox-ide stabilzed ZrO2 (CSZ)and NiCr by vacuum sintering isstudied, and the effect of additive TiO2,on its properties isdiscussed. The morphology and phases of the powder weremeasured and determined by SEM.EPMA. XRD methodsand the testing......
Microwave absorbing properties of NdFeCo magnetic powder王磊,林培豪,潘顺康,周怀营Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology摘 要:NdFeCo magnetic powder was prepared by the process of smelting,high-energy ball milling and oxidation heat treating.The effects of oxidation heat treatment and Co content on phase composition......
Microwave absorbing properties of NdFeCo magnetic powder王磊,林培豪,潘顺康,周怀营Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology摘 要:NdFeCo magnetic powder was prepared by the process of smelting,high-energy ball milling and oxidation heat treating.The effects of oxidation heat treatment and Co content on phase composition......
that the mill powder exhibits amorphous structure and the magnet exhibits CaCu5 structure. TEM observation indicates that the microstructure of the magnet is composed of SmCo5 single phase grains...; nanocrystalline; spark plasma sintering; amorphous powder SmCo5合金是目前所有稀土永磁中具有......
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Fabrication and properties of binder for powder extrusion moldingZHOU Jicheng and HUANG Baiyun1) School of Physics Science and Technology, Central South University, Changsha 410083, China2) State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China (Received 2002-03-29)摘 要:<正> By optimizing formulation......
Preparation of ultrafine nickel powder by wet chemical process CHEN Rui-ying(陈瑞英), ZHOU Kang-gen(周康根) School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China Received 11 October 2005; accepted 23 February 2006 Abstract: The main technical problems of nickel powder for multiplayer ceramic capacitors are particle size controlling, the agglomeration......
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