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Rietveld refinement and optical properties of SrWO4:Eu3+ powders prepared by the non-hydrolytic sol-gel methodP.F.S.Pereira1,I.C.Nogueira2,E.Longo1,I.L.V.Rosa21. Chemistry Institute, University... patterns and Rietveld refinement data confirmed that all powders had a scheelite-type tetragonal structure.Micro-Raman and Fourier transform infrared spectra indicated structural order at short range......
Rietveld refinement and optical properties of SrWO4:Eu3+ powders prepared by the non-hydrolytic sol-gel methodP.F.S.Pereira1,I.C.Nogueira2,E.Longo1,I.L.V.Rosa21. Chemistry Institute, University... patterns and Rietveld refinement data confirmed that all powders had a scheelite-type tetragonal structure.Micro-Raman and Fourier transform infrared spectra indicated structural order at short range......
键词:Al基复合材料；自生复合材料；Mg2S1;组织细化 中图分类号:TB 331 文献标识码:A Microstructure refinement of irr situ Mg2Si/Al composites LI Chrfeng, WANG Jun, LI Ke, SHU Da, SUN Bao-de ( State Key Laboratory... of Mg2Si reinforcements can mcrease by 4 – 6 times compared with the untreated one. The microstructure refinement effect of composites by Sr addition is less stable than that by Ce-Sr addition. Based......
Effects of microalloying on grain refinement behaviors and hardness properties of wedge-shaped Al-Mg-Mn castings LIU En-ke(刘恩克), YANG Fu-bao(杨福宝), XU Jun(徐骏), SHI Li-kai(石力开) National...; Abstract: The effects of microalloying elements Ti, Sc, Zr and Er on grain refinement behaviors and hardness properties of wedge-shaped Al-Mg-Mn alloy castings......
Effect of grain refinement on phase transformation behavior and mechanical properties of Cu-based alloy Gwon-Seung YANG1, Jong-Kook LEE1, Woo-Yang JANG2 1. Department of Advanced... amount of misch metal was added to Cu-Zn-Al alloy in order to study its effect on grain refinement, mechanical properties, phase transformation behavior and stabilization of martensite. It is found......
. The refinement of primary Mg2Si is mainly attributed to the heterogeneous nucleation mechanism induced by the Sr-rich particles. The modification of eutectic Mg2Si results from the dissolved Sr, which alters the preferred growth manner of the eutectic. Key words: Mg-Si alloy; Al-Sr alloy; Mg2Si; modification; refinement 1 Introduction Growing demands from the automobile and aerospace industries......
Trans. Nonferrous Met. Soc. China 26(2016) 3059-3069 Grain refinement mechanism of as-cast aluminum by hafnium Hong-ying LI1, De-wang LI1, Zhi-xiang ZHU2,3, Bao-an CHEN2,3, Xin CHEN2,3, Chang-long...., Shenyang 110006, China Received 11 November 2015; accepted 26 April 2016 Abstract: The effect of Hf on the grain refinement of as-cast aluminum was investigated using optical microscopy, electron......
Effect of grain refinement and crystallographic texture produced by friction stir processing on the biodegradation behavior of a Mg-Nd-Zn alloyWen Zhang1,Lili Tan2,Dingrui Ni2,Junxiu Chen2,Ying-Chao... in grain refinement, texture evolution and redistribution of second phases, which improved corrosion resistance.In this work, an as-rolled Mg-Nd-Zn alloy was subjected to FSP. The microstructure......
ω-Assisted refinement of α phase and its effect on the tensile properties of a near β titanium alloyRuifeng Dong1,2,Jinshan Li2,Hongchao Kou2,Jiangkun Fan2,Yuhong Zhao1,Hua Hou1,Li Wu11. College... with the microstructural characterization, it is found that ω phase facilitates the nucleation of αphase nearby the ω/β interface and has a great effect on the refinement for α phase. As compared......
diffractometry with Rietveld refinement, electron scanning microscopy and electrochemical measurements. Effects of lithium ion content and sintering temperature on physical and electrochemical performance...; Rietveld refinement _____________________________________________________________________________________________________ 1 Introduction Recently, layered LiNi0.8Co0.1Mn0.1O2 has been intensively studied......
