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of inner oxide scale and deposit inside of the tubes were examined.The fractured surfaces of failed tube samples were observed. And the material examination was performed for original tube steels SA213-T91...-term over heating causes the rupture of SA213-T91 and SA213-T22. 关键词:superheater; tube failure; material examination; short-term overheated; [全文内容正在添加中] ......
Rare Earth Elements-Doped LiCoO2 Cathode Material for Lithium-Ion Batteries 阎杰1,叶茂1,潘桂玲2,曹晓燕3,魏进平1 (1.Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China;2.State..., the performance of LiCo1-xRExO2 as the cathode material in lithium ion battery is improved, especially LiCo1-xYxO2 and LiCo1-xLaxO2. The initial charge/discharge capacities of LiCo0.99Y0.01O2......
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A new contact material-Ag/SnO2-La2O3-Bi2O3LU Jianguo, WANG Jingqin, ZHAO Jingying, WEN Ming, WANG Baozhu, and WANG XiaohongInstitute of Electrical Apparatus, Hebei University of Technology, Tianjin... material, Ag/SnO2+La2O3+Bi2O3, was produced by the powder metallurgy method. Its properties are as follows: the density is 9.75-9.93 g/cm3, the resistivity is 2.31-2.55 μΩ·cm, the hardness is 880-985......
Synthesis and Properties of Luminescent Material La2O2CO3费晓燕,陶振卫,刘洁,余锡宾,赵永恒,吴红娥,朱憬煊摘 要:A novel rare earth luminescent material La2O2CO3 was synthesized... greatly promoted its luminescence, compared with the products without adding KCl. The as-prepared material showed a strong green emission band centered at 470 nm under the excitation of 325 nm. Our......
Study of spent battery material leaching process LI Jin-hui(李金辉)1, 2, LI Xin-hai(李新海)1, ZHANG Yun-he(张云河)1, HU Qi-yang(胡启阳)1, WANG Zhi-xing(王志兴)1, ZHOU You-yuan(周友元)1, FU Fang-ming(符芳铭)1 1...; Abstract: The recovery of Ni, Co and Mn from spent battery material is very important to environment protection, utilization of resources and cost......
Mechanical properties of UHMWPE/Sm2O3 composite shielding material曹晓舟,薛向欣,姜涛,李哲夫,丁岳峰,李勇,杨合School of Material & Metallurgy,Northeastern University摘 要:UHMWPE have good effect to slow down fast neutrons and Sm2O3 can absorb the thermal neutrons.A new style UHMWPE/ Sm2O3 composite shielding material was manufractured by hot-press moulding method.The......
Mechanical properties of UHMWPE/Sm2O3 composite shielding material曹晓舟,薛向欣,姜涛,李哲夫,丁岳峰,李勇,杨合School of Material & Metallurgy,Northeastern University摘 要:UHMWPE have good effect to slow down fast neutrons and Sm2O3 can absorb the thermal neutrons.A new style UHMWPE/ Sm2O3 composite shielding material was manufractured by hot-press moulding method.The......
Properties of Zirconia Material as Oxygen Sensor林振汉,张玲秀摘 要:<正> The properties and applications of ZrO2-Y2O3 material used as oxygen sensor were studied.Oxygensensors are studied by X-ray diffraction technique,microstructure determination and thermal shock resistancetest,and are tested on the spot.Oxygen sensors made from the sintered dense ZrO2......
A Study on La2O3-Y2O3-Mo Secondary Emission Material 周美玲1,张久兴1,王金淑1,李洪义1,刘娟1,左铁镛1 (1.Key Laboratory of Advanced Functional Materials of Ministry of Education, School of Materials Science and Engineering, Beijing Polytechnic University, Beijing 100022, China) Abstract:The substrate molybdenum doped with La2O3, Y2O3 cathode material was made by the powder metallurgy method. The secondary......