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Magnetostrictive properties and detection efficiency of TbDyFe/FeCo composite materials for nondestructive testingLiangliang Zhu1,Kuoshe Li1,2,Yang Luo1,2,Dunbo Yu1,2,Zilong Wang1,2,Guiyong... Dy0.7)Fe1.95 thin films were deposited on FeCo substrates at room temperature by magnetron sputtering and annealed.The magnetostrictive properties and the detection efficiency of the composite films were......
Increase in efficiency of dye-sensitized solar cells by porous TiO2 layer modification with gadolinium-containing thin layerMaciej Zalas1,Grzegorz Schroeder11. Faculty of Chemistry, Adam Mickiewicz...) experiments. The modified electrode showed reduced N3 dye adsorption ability, but increased light conversion efficiency in comparison with the non-modified electrode. The overall conversion efficiencies......
Microstructure of Al-5Ti-1B-1RE nanoribbon and its refining efficiency on as-cast A356 alloys王奎,崔春翔,王倩,赵立臣,胡源Key Laboratory for New Type of Functional Materials in Hebei Province,Hebei University... of granular-like TiB2 and core-shell-like TiAl3/Ti2Al20Ce.The Al-5Ti-1B-1RE nanoribbon could give rise to the excellent refining effect on as-cast A356 alloys.The refining efficiency and formation......
Perovskite LEDs: World Record of External Quantum Efficiency That ApproachThose of the Best-performing Organic LEDs余昌敏Institute of Advanced Materials (IAM),Nanjing Tech University摘 要:efficiency of LEDs is limited by nonradiative recombination (whereby charge carriers recombine without releasing photons) and light trapping[1]. In planar LEDs......
Increase in efficiency of dye-sensitized solar cells by porous TiO2 layer modification with gadolinium-containing thin layerMaciej Zalas1,Grzegorz Schroeder11. Faculty of Chemistry, Adam Mickiewicz...) experiments. The modified electrode showed reduced N3 dye adsorption ability, but increased light conversion efficiency in comparison with the non-modified electrode. The overall conversion efficiencies......
Microstructure of Al-5Ti-1B-1RE nanoribbon and its refining efficiency on as-cast A356 alloys王奎,崔春翔,王倩,赵立臣,胡源Key Laboratory for New Type of Functional Materials in Hebei Province,Hebei University... of granular-like TiB2 and core-shell-like TiAl3/Ti2Al20Ce.The Al-5Ti-1B-1RE nanoribbon could give rise to the excellent refining effect on as-cast A356 alloys.The refining efficiency and formation......
concentration, pH value of solution and the existence of SO2 on removal efficiency. The results show that the optimal concentration of Pb, Cd and Hg absorbed by ammonium sulfide solutions are 0.2, 0.2 and 0.8 mol/L, respectively. And the optimal pH value is 10. Under the optimum conditions, the removal efficiency of Pb, Cd and Hg reach 95.5%, 93.2% and 99.9%, respectively. The emission concentration......
300072, China) Abstract: Considering the isentropic efficiency of steam turbine and pump, the theoretical calculation formula of thermal efficiency for the small organic Rankine cycle (ORC) system was deduced. According to the formula derived, the thermal efficiency of four organic working fluids (R134a, R123, R245fa and R227ea) for the small ORC system were calculated under the same condition......
微型电阻焊技术的研究进展 莫秉华1,郭钟宁1 (1.广东工业大学机电工程学院,广州,510006) 摘要:微型电阻焊是一种重要的微连接技术,在微电子,MEMS和医疗器械制造领域得到了广泛应用.从微型电阻焊的原理和主要工艺参数出发,综述了这一技术近年来国内外的研究状况,重点总结了微型电阻焊接头形成机理,材料焊接性,焊接过程数值仿真和质量监控方法等方面的研究进展,最后指出了当前存在的问题及未来的研究方向. 关键词:微型电阻焊; 焊接机理; 数值仿真; 质量监控; 可焊性; resistance microwelding; joining mechanism; numerical simulation; quality control; weldability; [全文内容正在添加中] ......
搅拌头结构形状对焊缝性能影响的研究 曹朝霞1 (1.包头职业技术学院,材料工程系,内蒙,古包头014030) 摘要:搅拌头是搅拌摩擦焊的关键技术.采用圆柱形搅拌头,进行铝合金薄板对接搅拌摩擦焊工艺试验.试验过程中,通过改变搅拌头肩部及搅拌针的尺寸,分析其对焊接过程及焊缝质量的影响.结果表明:对于厚度为3 mm的铝合金板材,当采用搅拌针直径为3 mm,肩部直径为9 mm的圆柱形搅拌头施焊,在合理的焊接工艺参数下施焊,可获得质量良好的焊接接头. 关键词:搅拌摩擦焊; 固相连接技术; 搅拌头; friction stir welding (FSW); solid -phase joining technique; stir-welding head; [全文内容正在添加中] ......
