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IGNITING SHS BY LASER AND ITS APPLICATION TO SELECTIVE LASER SINTERING OF METALLIC POWDER MATERIAL S.H.Huang1,S.C.Chen1,Y.S.Shi1,X.L.LU1 (1.State Key Laboratory of Plastic Forming Simulation... with selective laser sintering (SLS) process is a potential technique that scientists are researching. Existent problems during directly fabricating metal part by use of SLS are analyzed. For the sake......
J. Cent. South Univ. Technol. (2009) 16: 0725-0729 DOI: 10.1007/s11771-009-0120-5 Preparation of β-Sialon/ZrN bonded corundum composites from zircon by nitridation reaction sintering process MA... using fused white corundum, alumina micro powder, zircon and carbon black by nitridation reaction sintering process. Phase composition and microstructure of the synthesized composites were......
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.该方法操作简单,易于管理,可达到以废治废的目的,是一种新型的环境友好的废水处理方式.关键词:异化金属还原菌；锰尾矿；制药废水；化学需氧量Treatment of pharmaceutical wastewater using dissimilatory metal reductive microbes and manganese tailingsFENG Ya-li1, ZHANG Qian1... reductive microbes were isolated from anaerobic activated sludge, and domesticated to high activity. Dissimilatory metal reductive microbes could use organic matters in pharmaceutical wastewater......
. 图7 含砷石膏渣/煤粉反应气体产物的浓度-温度曲线 Fig. 7 Concentration-temperature curves of evolved gas in reductive decomposition of arsenic bearing gypsum sludge/coal 图8所示为含砷石膏渣/煤粉碳热还原过程中收集到的烟尘.收集到的烟尘主要成分为...用价值. 2.3.2 含砷石膏渣分解过程中砷的迁移规律 图8 含砷石膏渣还原分解挥发物烟尘的XRD谱 Fig. 8 XRD patterns of dust in reductive decomposition of arsenic bearing gypsum sludge/coal 含砷石膏渣/煤粉在1000 ℃还原分解,石膏渣挥发率为45.29%,减容率......
-As-H2O system (298 K, a=1)[20] 2 实验 2.1 实验原料 实验所用分析纯级还原铁粉的SEM像如图3所示,实验所用还原浸出液化学组成如表1所示. 表1 还原浸出液化学组成 Table 1 Chemical composition of reductive leach solution 由图3可知,还原铁粉呈多孔,类球形烧结... of Nonferrous Metals, 2016, 26(1): 212-222. [6] SENANAYAKE G, CHILDS J, AKERSTROM B D, PUGAEVD. Reductive acid leaching of laterite and metal oxides-A review with new data for Fe(Ni, Co)OOH and a limonitic......
Preparation of Ni-Cr/BN self-lubricating composites by active sintering process YU Kun(余 琨), YANG Zhen(阳 震), WANG Ri-chu(王日初), TAN Ying-guo(谭映国) School of Materials Science and Engineering, Central South University, Changsha 410086, China Received 15 July 2007; accepted 10 September 2007 Abstract: A Ni-Cr/BN composite was produced by a active sintering process. The powder......
流程,能有望应用于水钴矿及类似物料中有价金属的提取与分离的工业生产. 关键词:水钴矿；还原酸浸；铜；钴 中图分类号:TF811; TF816 文献标志码:A Recovery of copper and cobalt from low-grade heterogenite with reductive acid leaching method.... This process flow can be applied in the extraction of metals from heterogenite and similar materials effectively in industry. Key words: heterogenite; sulferic reductive acid leaching; copper; cobalt 钴是重要的......
Article ID: 1003-6326(2005)02-0247-05 Fabrication of finegrained Al2O3 ceramic at low sintering temperature LI Hua-ling(李华玲)1, 2, WANG Mao-cai(王茂才)1, ZHAO Ji-bin(赵吉宾)3, LIU Wei-jun(刘伟军)3 (1..., China; 3. Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: A research on fabrication of finegrained Al2O3 ceramic at lower sintering temperature......
Trans. Nonferrous Met. Soc. China 26(2016) 2495-2501 Reductive leaching of zinc and indium from industrial zinc ferrite particulates in sulphuric acid media Fan ZHANG, Chang WEI, Zhi-gan DENG, Cun...: Zinc ferrite is the principal constituent in zinc neutral-leach residue (NLR) which is commonly treated by hot-acid leaching in electrolytic zinc plants. Reductive leaching of zinc ferrite......
