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that enough ECAP passes are beneficial to increasing corrosion resistance of the hypereutectic Al-23%Si alloy. Key words: aluminum casting alloys; ECAP; corrosion behavior; ultrafine grained microstructure...; 1 Introduction Casting Al-Si alloys are found wide application for lightweight components in the automotive, aerospace......
Effect of Ablation Casting on Microstructure and Casting Properties of A356 Aluminium Casting AlloyV. Bohlooli1,M. Shabani Mahalli1,S. M. A. Boutorabi21. Casting Research Center, School of Metallurgy... University of Science and Technology (IUST)摘 要:Recently the Ablation Casting Technology was invented as a new casting process to improve foundry products......
Synthesis of YAG:Ce3+ Phosphor by Polyacrylamide Gel Method and Promoting Action of α-Al2O3 Seed Crystal on Phase Formation Cheng Changming1,Wu Yanli1,Gu Ziying1,Min Yulin1,Zhou Xuezhen1,Li... gel method. The structure evolution of powders during annealing process was followed by X-ray diffraction determination. It is found that some intermediate phases, including θ-Al2O3, YAM and YAP......
Preparation and Characterization of AlginateHyaluronic Acid-chitosan based Composite Gel Beads胡燕1,ZHENG Mengzhu2,DONG Xiaoying1,ZHAO Dan1,程寒1,XIAO Xincai11. College of Pharmacy, South-Central... composite gel beads based on natural polysaccharides. Hyaluronic acid(HA) and Chitosan(CS) were successfully admixed with Ca2+/alginate(SA) gel system to produce SA/HA/CS gel beads by dual crosslinking......
of FTIR spectra for gel precursors In aqueous solutions, the citric acid can be disassociated and exists in four species in the sequence of H3Cit, H2Cit-, HCit2- and Cit3...[16]. It was found that using lactic acid and iron (III) nitrate as the starting reagents (in a molar ratio of 3.025?1 and at pH1.5) in aqueous solutions the Fe-lactate gel with a good spinnability......
(HES) were oxidized by sodium periodate to convert neighbouring hydroxyl groups into dialdehyde groups. Upon mixing the two polymer components in aqueous solution, Schiff''s base reaction occurred between the amino groups in the modified gelatin and the aldehyde groups in the modified polysaccharides to give intermolecular crosslinking and gel formation. This new glue showed a capability to stop......
Crystallization, morphology and luminescent properties of YAG:Ce3+ phosphor powder prepared by polyacrylamide gel method LIU Chun-jia(刘春佳), YU Rui-min(于瑞敏), XU Zhi-wei(许志伟), CAI Jing(蔡 靖),YAN Xing...; Abstract: A novel synthesis process, based on the polyacrylamide gel method, was used to prepare Ce-doped YAG phosphor powders. Effects of heat treatment parameters, temperature and holding time......
; Effect of ultrasonic power and casting speed on solidification structure...-continuous casting were researched, and the effects of casting speed on solidification structure in ultrasonic field were also analyzed. The experiment and simulation results show that the solidification......
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