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有色金属矿床地质特征及成矿特征李延峰吉林省地质调查院摘 要:近年来,随着全球经济一体化的发展,科学技术不断提升使有色金属的利用率不断增长.但有色金属为稀缺资源且不可再生,因此对于有色金属矿的相关地质特征以及发展形成进行分析研究,并不寻找有色金属矿来改变稀缺现状.本文针对有色金属矿床地质特征及成矿特性进行了研究,期望日后能够提高有色金属矿的开采率,对找矿工作有所帮助.关键词:有色金属;地质特征;成矿特征;......
Microscopic phase-field simulation for precipitation behavior of Ni-Al-Cr alloy during two-step aging ZHANG Ji-xiang(张济祥), CHEN Zheng(陈 铮), LIANG Min-jie(梁敏洁), WANG Yong-xin(王永欣), LAI Qing...; Abstract: Based on the microscopic phase-field model, the pre-aging temperature effects on the precipitation mechanism and microstructure evolution during two-step aging for Ni75Al9Cr16 alloy were......
:TG166.3 文献标志码:A Aging precipitation kinetics and strengthening models for aluminum alloys WANG Xiao-na, HAN Li-zhan... the heat treatment were investigated extensively, and the quantitative predictive models with academic research and engineering application were established. The methods and models for the precipitation......
of ZrO2(Y2O3) spherical nanometer powders via coupling route of water-oil emulsion with homogenous precipitation CHANG Ying, LI Xi-bin, MENG Zhen-qiang, ZHAO Fu-an (State Key Laboratory of Powder... homogenous precipitation, in which xylol was used as the oil phase, span-80 as the surfactant, and an aqueous solution containing zirconium as the water phase. The ZrO2 powders and the precursor......
. 关键词:铝酸钠溶液；表面活性剂；强化；晶种分解 中图分类号:TF 821 文献标识码: A Effect of nonionic surfactant on seeded precipitation of sodium aluminate solution PENG Zhi-hong, LIU Yan... on the seeded precipitation rate of sodium aluminate solution, the particle size and morphology of the products were studied. The results show that when the added amount of the nonionic surfactant......
distribution dynamic model of gibbsite precipitation process during alumina production ZHANG Jia-yuan1, LI Yong-qing2, FU Ming-hui1, LIU Bin1 (1. School of Energy Science and Engineering, Central... and numerical simulation of the precipitation were synchronously applied. Based on the dynamics law and population balance, with the full characteristics of the particle size variation of the MSMPR gibbsite......
Preparation and Characterization of Nanocrystalline CeO2 by Precipitation Method 张伟1,李明1,董相廷1,洪广言2,刘桂霞1 (1.Faculty of Applied Sciences, Changchun Institute of Optics and Fine Mechanics, Changchun... by precipitation method using ethanol as dispersive and protective reagent. XRD spectra show that the synthesized CeO2 has cubic crystalline structure of space group O5H-FM3M, when calcination temperature......
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studies demonstrate that the alloying elements can modify the dimension, morphology and distribution of phases, or stimulate the precipitation of the new phase in Al-Li alloys, and in addition, are also able to refine the grain structure, control the recrystallization and grain orientation. Essentially, the nature and kinetics of the precipitation process depend on the interaction of alloying......
