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Synthesis of Gd2O3 nanoparticles:using bulk Gd2O3 powders as precursorTaher Yousefi,Meisam Torab-Mostaedi,Mostafa Ghasemi,Amir GhadirifarNuclear Fuel Cycle Research School, Nuclear Science andTechnology Research Institute摘 要:Gd2O3nanoparticles were synthesized from the commercial bulk Gd2O3 powders via a simple electrochemical method. The synthesized......
Oxidation Properties of Silver Alloy Powders and Microstructures of Oxidized Powders for Making Electrical Contact Composites周继扣,马福康,刘茂林摘 要:OxidationPropertiesofSilverAloyPowdersandMicrostructuresofOxidizedPowdersforMakingElectricalContactCompositesZhouJikou(周继扣),M...关键词:......
RESEARCH ON PREPARATION OF ULTRAFINE ALN POWDERS曹立宏,袁润章,汤宇凌,卓云峰摘 要:<正>The high purity of ultrafine power(UFP)of a-luminium nitride(AlN) are prepared by the reaction of nitrogenplasma with metal aluminium in D.C.plasma reactr.Both thenitriding principle and the AlN nucleation mechanism are stud-ied.The rusults,indicate that the chemical reaction......
GRAIN GROWTH IN NANOSIZE AIN POWDERS曹立宏,欧阳世翕,关波摘 要:<正>The nanosize AlN particles wereprepared by evaporation-condensation method in DCarc nitrogen plasma. Aluminium of high purity(99. 999% ) was evaporated and nitrided in nitro-gen plasma by use of high temperature and high re-activity of plasma gas. The purity of nanosize AlNparticles is more......
Preparation of Zirconia-Ceria Powders with High Specific Surface Area MEI Fang1,Wang Enguo1 (1.Department of Physics, Zhanjiang Normal University, Zhanjiang 524048, China) Abstract:Zirconia-ceria mixed oxide powders were prepared by high temperature aging method.The effects of the temperature and the time of aging, cerium content and calcination on powder performance were studied.The result......
Refinement of Melt-Spun Quenching NdFeB Powders by Ball Milling郑精武1,姜力强1,乔梁11. College of Chemical Engineering and Materials Science, Zhejiang University of Technology摘 要:Melt-spun quenching NdFeB powders were treated through mechanical ball-milling. Their microscopic images and performance before and after the milling were observed. Microstructures......
Shot lining of magnesium alloy with hard powders Y. HARADA1, I. FUKUDA2 1. Graduate School of Engineering, University of Hyogo, Kamigohri Akoh Hyogo 678-1297, Japan; 2. Yatsushiro National College of Technology, Yatsushiro, Kumamoto 866-8501, Japan Received 23 September 2009; accepted 30 January 2010 Abstract: To improve the surface properties, lining of magnesium alloys with hard powders......
Preparation of ZrO2 spherical nanometer powders by emulsion processing route CHANG Ying(常 鹰), LI Xi-bin(李溪滨) State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China Received 10 April 2006; accepted 25 April 2006 Abstract: ZrO2 precursor powders containing 3% Y2O3 were prepared via a single emulsion processing route and a double emulsion processing......
="ChDivSummary">The powders of pure Al, Fe, and Zr for preparing Al78Fe20Zr2 were subject to a high-energy planetary ball milling.The microstructure evolution of the mixtures at the different intervals... of the amorphous powders and the formation of Al3Zr and Al13Fe4.The crystallization products caused by ball milling are almost the same as that produced by isothermal annealing of the amorphous powders in vacuum......
(LAS) powders were synthesized through various sol-gel processes using acrylamide,citrate-acrylamide,citrate-nitrate and nitrate gel routes.The mechanism of formation of LAS in all these four gel... homogeneous LAS powders.关键词:......