共搜索到946条信息，每页显示10条信息，共95页。用时：0小时0分0秒843毫秒
pH值降低及电导率增加幅度较小,起弧电压,电解液温度较低,膜层生长速率较快,其厚度增长速率约为2.9 μm/min.原位锆溶胶电解液制备的膜层表面呈多孔网状结构,内外膜层结合紧密,膜层较厚,可达85 μm；外加锆溶胶电解液生成膜层表面有火山状沉积物,膜层疏松；微弧氧化膜主要由γ-Al2O3和t-ZrO2相组成.关键词:铝合金；锆溶胶；微弧氧化Influence of zirconia sol... electrolyte with in-situ and additional zirconia sol. The effects of zirconia sol on the microarc oxidation process were investigated. The variations of voltage and electrolyte parameters, the growth process......
Composite ceramics thermal barrier coatings of yttria stabilized zirconia for aero-enginesQiaomu Liu,Shunzhou Huang,Aijie HeAECC Sichuan Gas Turbine Establishment摘 要:zirconia(YSZ). In this paper, fabrication methods, coating structures, materials, failure......
processing route display smaller particles with more even size distribution, the average size of around 15 nm. Key words: zirconia; emulsion; spherical nanometer particles 1 Introduction Zirconia... comparatively high. In this paper, a water/oil emulsion using low price xylol as oil phase, span-80 as surfactant was used to prepare ultrafine spherical zirconia nanoparticle powder; the content......
......
glass-ceramic bond coating, 8% (mass fraction) yttria stabilized zirconia (8YSZ) top coating and nimonic alloy substrate were evaluated. The thermal diffusivity and thermal conductivity of the TBC... words: glass-ceramic coating; thermal barrier coating; thermal properties; yttria stabilized zirconia 1 Introduction Thermal barrier coatings (TBCs) are widely applied to protect the hot-section......
Synthesis and microstructure of zirconia nanopowders by glycothermal processing Jun-Seop KIM1, Dong-Hae LEE1, Sung KANG1, Dong-Sik BAE1, Hoy-Yul PARK2, Moon-Kyeung NA2 1. School..., catalysts, medicines and food[2]. Zirconia is an important material because of its use in different fields of chemistry such as ceramics and catalysis[3]. Nano-zirconia ceramics are of great......
Microstructure and thermal cycling behavior of nanostructured yttria partially stabilized zirconia (YSZ) thermal barrier coatings孙杰,张丽丽,赵丹School of Environmental and Chemical Engineering,Shenyang Ligong University摘 要:Nanostructured yttria partially stabilized zirconia(YSZ) coatings were prepared by atmospheric plasma spraying(APS) using......
Microstructure and thermal cycling behavior of nanostructured yttria partially stabilized zirconia (YSZ) thermal barrier coatings孙杰,张丽丽,赵丹School of Environmental and Chemical Engineering,Shenyang Ligong University摘 要:Nanostructured yttria partially stabilized zirconia(YSZ) coatings were prepared by atmospheric plasma spraying(APS) using......
Effect of Thermal Treatment on Microstructure and Phase of Partially-stabilized Zirconia胡永刚,肖建中,XIA Feng,ZHANG HaiboCollege of Material Science and Engineering, Huazhong University of Science... in this partially stabilized zirconia(PSZ) increases after heat treatment at 1 150 ℃. The temperature of heat- treatment, not the time for holding, is the governing factor of the fraction of monoclinic phase.关......
Effect of pH on Crystallization of Nanocrystalline Zirconia in a Microwave-hydrothermal Process欧阳海波1,李翠艳1,LI Kezhi2,LI Hejun2,ZHANG Yulei21. College of Materials Science & Technology,Shaanxi University of Science & Engineering2. State Key Laboratory of Solidification Processing,Northwestern Polytechnical University摘 要:Nanocrystalline zirconia(ZrO......
