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Article ID: 1003-6326(2005)02-0384-05 Superplastic solid state welding of steel and copper alloy based on laser quenching of steel surface ZHANG Ke-ke(张柯柯), HAN Cai-xia(韩彩霞), QUAN Shu-li(权淑丽... on the feasibility of isothermal superplastic solid state welding of steel and copper alloy, the welded surface of steel surface was ultra-fined through laser quenching, and then the welding process tests......
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could be extended to laser ceramics of the same composition. Key words:ytterbium; fluoride; garnet; sesquioxide; laser crystals; concentration quenching self trapping; lifetime; [全文内容正在添加中] ...Optimization of the gain in Yb3+-doped cubic laser crystals of 99.99% purity Akira Yoshikawa1,Yannick Guyot2,Georges Boulon2 (1.IMRAM,Tohoku University,2-1-1 Katahira,Aoba-ku,Sendai,980-8577,Japan......
treatment, chemical vapor deposition, and metallic cementation)[1-2]. Surface heat treatment with laser beam uses the characteristics of self-quenching that cools rapidly into materials without... Laser surface hardening of AISI H13 tool steel Jae-Ho LEE, Jeong-Hwan JANG, Byeong-Don JOO, Young-Myung SON, Young-Hoon MOON School of Mechanical Engineering, Pusan National University, Busan......
. Consequently, the 3P0 manifold is more favorable as an upper laser level than the 1D2 manifold. Key words:fluorescence quenching; Pr3+:PbWO4 crystal; mechanism; rare earths; [全文内容正在添加中] ...Mechanisms of Fluorescence Quenching of Pr3+-Doped PbWO4 Crystal Xiong Feibing1,Luo Zundu1,Huang Yidong1 (1.Fujian Institute of Research on Structure of Matter, Chinese Academy of Sciences, Fuzhou......
Laser Quenching and Ion Sulphidizing Complex Surface Treat Technology for Diesel Engine Cylinder谢兆钱Northwest Institute of Nuclear Technology摘 要:In order to solve the problem of wear-out-failure of diesel engine cylinder, the laser-quenching and low temperature ion sulfurizing complex surface treatment technology was operated on the surface of 42MnCr52......
Investigation on Structures and Properties of Yb3+-Doped Laser Glasses He Shaobo1,Lu Anxian2,Tang Xiaodong1,Liu Shujiang2 (1.Research Institute of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;2.School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract:The Yb3+-doped silicate, phosphate and borophosphate laser glasses......
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Highly Er3+/Yb3+ Co-Doped Fluoroaluminate Glasses for Microchip Laser at 1.54 μm 胡丽丽1,汪国年1,徐时清1,张丽艳1,张军杰1,戴世勋1 (1.Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Science,Shanghai 201800,China) Abstract:A series of highly Er3+/Yb3+ co-doped fluoroaluminate glasses were investigated in order to develop a microchip laser at 1.54 μm under 980 nm excitation. Measurements......