共搜索到20406条信息,每页显示10条信息,共2041页。用时:0小时0分0秒187毫秒
precipitation. We studied the metallic minerals and fluid inclusions using a thermodynamic phase diagram method, such as lgfO2–lgfS2, pH–lgfO2, pH–lg[Pb2+] and pH–lg[HS-], discussed the constraints...; thermodynamic phase diagram; mineral zoning; lead and zinc deposit; southwest of China Cite this article as: ZHANG Yan, HAN Run-sheng, WEI Ping-tang. Order of sphalerite and galena precipitation: A case study......
Synthesis of Polycrystalline Yb:Gd3Ga5O12 Nanopowders by Homogeneous Precipitation Method黄德馨1,2,刘景和11. Department of Materials Science and Engineering,Changchun University of Science and Technology2...+:Gd3Ga5O12, Yb:GGG] precursor powders were synthesized via homogeneous precipitation method using Yb2O3, Ga2O3, Gd2O3 and ammonium bicarbonate [NH4HCO3] as precipitator, and ammonium sulfate [(NH4)2SO4......
Quantitative effects of phase transition on solute partition coefficient,inclusion precipitation, and microsegregation for high-sulfur steel solidificationLintao Gui1,2,Mujun Long1,2,Shixin... precipitation, and microsegregation by establishing a coupling model of microsegregation and inclusion precipitation, wherein the quantified dependencies of ki in terms of temperature, phase and carbon(C......
in certain orientations with angles of 65° or 90° O phase particles. The obtained alloy was composed of acicular O, Widmanstatten B2 +O, and acicular TiC. As a result of the precipitation of carbides...Evaluation of precipitation hardening in TiC-reinforced Ti2AlNb-based alloysYa-ran Zhang1,Qi Cai2,Yong-chang Liu1,Zong-qing Ma1,Chong Li1,Hui-jun Li11. State Key Laboratory of Hydraulic Engineering......
precipitation method CHEN Juan(陈娟), HUANG Zhi-liang(黄志良), CHEN Chang-lian(陈常连), LI Wen-zhao(李文昭), XU Wei-rong(徐伟荣) School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074... retardant, the plate-like basic magnesium carbonate (Mg5(CO3)4(OH)2.4H2O) was prepared successfully by template-mediated/ homogeneous precipitation method, using magnesium chloride hexahydrate......
Synthesis of Ce:YAG Phosphor via Homogeneous Precipitation under Microwave Irradiation王勇,袁鹏,徐红燕,王介强摘 要:<正>Ultra-fine Ce:YAG phosphors were prepared by homogeneous precipitation under microwave irradiation method . The formation of Ce: YAG was investigated by means of XRD and DTA/TG. The purified YAG crystallized phase was obtained at a lower......
The Minor Precipitation at the Final Stage of U720Li SolidificationGuang-Di Zhao1,2,Lian-Xu Yu1,Feng Qi1,Fang Liu1,Wen-Ru Sun1,Zhuang-Qi Hu11. Institute of Metal Research, Chinese Academy... in as-cast state, which were usually accompanying with each other together with g-Ni3 Ti phase at the edge of eutectic(γ+γ’). Combining the DTA analysis and heating and quenching tests, the solidification......
that the precipitation behavior of ?-Mg17 Al12 phase during aging and the resultant variation in hardness and mechanical properties of cast Mg-Al-Zn alloy are strongly dependent on initial grain size. Grain size...Accelerated precipitation behavior of cast Mg-Al-Zn alloy by grain refinementSang-Hoon Kim1,Jong Un Lee1,Ye Jin Kim1,Jun Ho Bae2,Bong Sun You2,Sung Hyuk Park11. School of Materials Science......
Effect of large cold deformation after solution treatment on precipitation characteristic and deformation strengthening of 2024 and 7A04 aluminum alloys NING Ai-lin(宁爱林)1, 2, LIU Zhi-yi(刘志义)1... Received 2 March 2006; accepted 26 June 2006 Abstract: The effects of large cold deformation after solution treatment on the precipitation characteristic and deformation strength of 2024 and 7A04......
Aging Precipitation Behavior and Mechanical Properties of Inconel 617 SuperalloyYan GUO,Bohan WANG,Shufang HOUMaterials Department, Xi’an Thermal Power Research Institute Co.Ltd.摘 要:Aging precipitation behavior and mechanical properties of Inconel 617 superalloy aged at 760 ℃ for up to 10000 h were investigated. The results showed that the precipitates......