共搜索到37225条信息，每页显示10条信息，共3723页。用时：0小时0分0秒542毫秒
of rare earth Y on sintering properties of nano-powder 90W-7Ni-3Fe alloy MA Yun-zhu, HUANG Bai-yun, XIONG Xiang (State Key Laboratory of Powder Metallurgy, Central South University, Changsha... the rare earth addition is, the bigger influence on W crystal morphology is. Middle phase W13.07Ni2.96Fe1.52Y23.65Ox (mole ratio) appears at interface when rare earth Y is added, which decreases......
element Eu and Tb reduces largely. Key words: middle Y and rich Eu mineral; extraction separation process; pre-separation extraction method; rare earth 富铕中钇离子稀土矿是我国南方稀土矿的重要品种, 由于其储量大, 产量较高... of single-stage extraction for RE mineral with middle Y and rich Eu with HEH(EHP) kerosene 表2 P507萃取富铕中钇矿单级实验的平衡有机相和平衡水相稀土配分分析结果* Table 2 Composition of rare earth in equilibrium......
Effect of rare earth Y on oxidation behavior of NiAl-Al2O3XU Gui-hua, WANG Guo-feng, ZHANG Kai-feng(National Key Laboratory of Precision Heat Processing of Metal, Harbin Institute of Technology...; oxidation resistance; rare earth Y......
spacing as well as the refinement mechanisms were expounded emphatically. The complex influence of rare earth element Y on room temperature tensile strength and ductility as good as enhanced temperature oxidation resistance were analyzed systematacially. Some suggestions for the research on rare earth element Y in γ-TiAl based alloys were proposed. Key words: TiAl based alloy; rare earth element......
with adding La or Y, and the effect of rare earth element on particle morphology increases with the increase of rare earth element content. When the rare earth element content is between 0-0.8... were also measured. The results show that the phase composition of the composite powder reduced are W and γ-(Ni, Fe) without the rare earth elements, but new phase of La(Ni0.75W0.25)O3 or Y......
(W, Ni, Fe, Y) composite powders containing rare earth element Y of 0, 0.4%, 5%, 10% and 20%, respectively were fabricated by sol-spray drying calcination and subsequent hydrogen reduction process. X...%, the new phases Y2WO6 and Y6W2O15 are formed. Key words: W-Ni-Fe composite powder; nanopowder; rare earth; Y ......
......
, 55(28): 8815-8820. [22] 张先文. 正极材料LiNi0.5Mn1.5O4的制备和稀土掺杂改性研究[M]. 上海: 上海交通大学, 2013. ZHANG Xian-wen. Study of synthesis and modification of LiNi0.5Mn1.5O4 cathode material with rare earth element.... [25] SUN H, CHEN Y, XU C, ZHU D, HUANG L J. Electrochemical performance of rare-earth doped LiMn2O4spinel cathode materials for Li-ion rechargeable battery[J]. Journal of Solid State Electrochemistry......
Trace and Rare Earth Element Geochemistry of Micrite Mound Carbonates and Other Related REE Mineralized Carbonates from Bayan Obo Area in Inner Mongolia PENG yang1,Qiu Liwen2,YANG Xueming3,Zhang..., Nanjing 200093, China;3.School of Earth and Space Sciences, University of Science and echnology of China, Hefei 230026, China) Abstract:Geochemical study on trace and rare earth element geochemistry......
Effects of Rare Earth Element Lan on the Activities of Earthworm Enzyme Liu Weiping1,Liu Wenli2,Xu Dongmei3 (1.Research Center of Environmental Science, Zhejiang University of Technology, Hangzhou...:The effects of Rare Earth Element Lan on the activities of cellulose, catalase, peroxidase and superoxide dismutasein in earthworm were carried out by natural soil test. The results indicated that Lan can......
