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Nanolithography is a patterning technique for the fabrication of nano-scale structures.A promising method of nanolithogr......
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An improved wax-based binder was developed for the powder injection molding (PIM) of WC-TiC-Co cemented carbides. The c......
Influence of the Erbium Substitution for Gd in Gd_5Si_(1.8)Ge_(2.2) Alloys on the Magnetocaloric Eff
The phases and magnetocaloric effect in the alloys (Gd1-xErx)5Si1.8Ge2.2 with x=0, 0.1, 0.2 and 0.3 were investigated by......
Nanocrystalline W-Ti diffusion barrier thin films with different phase structures and Cu/barrier/Si multilayer structure......
1 General scheme of beam pulsing injection line The main goal of developing the beam pulsing system is to obtain the pul......
Highly active electrocatalysts based on Layered Double Hydroxides (LDH) towards oxygen evolution reactions (OER) are req......
1.The Status of Major Mineral Reserves in ChinaSince 1949 162 kinds of minerals and thousands of mining area have been f......
采用传统固相烧结工艺,制备了Ba4.5La9( Ti1-y Sny)18O54陶瓷.研究了不同SnO2添加量对烧结体性能、晶相组成以及晶粒形貌的影响.结果表......
采用渗流铸造方法制备了W丝/Zr-Ti-Cu-Ni-Be-Co非晶基复合材料,研究了复合材料的变形方式及其机理.结果表明:w丝/Zr-Ti-Cu-Ni-Be-C......
研究了以马来酸酐为原料,以过氧化氢为氧化剂,以钨酸为催化剂合成乙醛酸的方法,讨论了影响乙醛酸产率的诸多因素.结果表明:当马来酸酐为......
摘要:位于塔里木板块与哈萨克斯坦板块缝合带南侧被动陆缘隆起区的盘陀山花岗岩体中,近年新发现了钨矿床。钨矿体产于岩体北部边缘内......
用射频感应等离子体将钨粉炭化成碳化钨,对炭化过后的粉末在氩气保护下,于1900℃进行烧结处理,并对在感应等离子体中钨粉被甲烷炭......
为实现工业钨渣资源化利用以及"以废治废"的目标,以硅藻土和工业钨渣为主要原料制备多孔陶粒,研究陶粒对离子型稀土矿区土壤淋滤液......
1资源勘查历史安徽钨矿始于1958年群众报矿而发现,1964年317队进行1:20万旌德幅区调时发现钨矿。随后332队进行逍遥钨铜矿(1970、1978......
放射治疗中作射野位置验证时,目前多是利用射野照相底片中,以照射野内及周围的组织结构作为参照,用肉眼与放射治疗计划的照射野作......
对河南某复杂含多金属硫化矿金矿石进行了选矿试验研究,采用部分混合浮选—铅铜分离浮选—尾矿浮选硫工艺流程,获得含金银的铜精矿、......
熔盐电沉积工艺可以直接从钨的氧化物中制备金属钨。主要综述了熔盐电沉积钨的发展,介绍了Na2WO4-Zn O-WO3体系、Na2WO4-WO3体系、......
在处于室温条件下的离子液体中,以NaW04·2H2O为催化剂,H2O2为氧化剂,用环己酮合成己二酸。讨论了离子液体用量、NaWO4·2H2O......
作者在深入柿竹园钨多金属矿床野外地质工作的基础上,采用矿区燕山期花岗岩和泥盆系灰岩作为试料,在含pH=4.0的0.3MNaCl+0.7MKF水溶液的高压釜中持续了120小时......
利用微波技术和常规等体积浸渍法制备了一系列NiW/TiO2-Al2O3加氢脱硫催化剂样品,并采用BET,XRD,XPS和TPS(程序升温硫化)方法对催化剂......
THE FIRST BINUCLEAR MOLYBDENUM AND TUNGSTEN COMPLEXES WITH DOUBLY-BRIDGING PYRIDINE-2-THIOLATO LIGAN
The title complex was obtained by reactions of[Mo(CO)<sub>3</sub>(MeCN)<sub>3</sub>] with [CuBr(pySH)(PPh<sub>3</sub>)<sub>2</su......
本法具有快速、简便、成本低、以及对钙含量高的试样分析准确度优于分光光度法等优点。适用于各种矿区钨矿的选矿流程及硅酸盐中钨......