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纳米ZrO2薄膜的制备与表征 杨天河1,李小丽1,周斌1,沈军1,吴广明1,王珏1,张勤远2 (1.同济大学;2.上海市,200092,同济大学波耳固体物理研究所) 摘要:用水热盐溶液水解法可合成含有单斜相晶态纳米ZrO2颗粒的ZrO2溶胶体.用匀胶法制备的纳米ZrO2薄膜厚度约160 nm,折光率为1.56.纳米ZrO2薄膜表面质量良好,无表面裂隙,台阶仪研究表明薄膜表面粗糙度算术差Ra=2.7 nm,均方根差Rq=3.7 nm.以ZrO2为高折射率膜层,碱催化的溶胶凝胶SiO2为低折射率膜层,制备了SiO2/ZrO2多层高反射率薄膜,10周期的SiO2/ZrO2多层膜系,在1.06 μm波段处透过率为1%,薄膜表面抗激光损伤阈值约15 J/cm2(1.06 μm,2.5 ns高功率激光作用下). 关键词:水热法; 纳米ZrO2薄膜; 单斜相ZrO2; 光学高反膜; 激光损伤阈......
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超声激励电压对等离子喷涂ZrO2热障涂层结合强度的影响 李路明1,马骏2,文雄伟1,张华堂2 (1.清华大学航空航天学院,北京,100084;2.清华大学机械工程系,北京,100084) 摘要:在等离子喷涂过程中实时导入超声激励,进行ZrO2热障涂层制备.喷涂过程中保证超声激励频率不变,改变超声激励电压,并与不加超声进行对比,研究了其对涂层结合强度的影响.结果表明,施加适当的超声激励电压对涂层结合强度的提高和稳定可起到促进的作用. 关键词:电弧超声; 等离子喷涂; 热障涂层; 电压; 结合强度; [全文内容正在添加中] ......
ZrO2基陶瓷复相材料的研究进展 陈建华1,冯春霞2,张其土2 (1.盐城工学院材料工程系,盐城,224003;2.南京工业大学材料科学与工程学院,南京,210009) 摘要:多相复合陶瓷已经成为陶瓷材料研究的热点,ZrO2陶瓷及ZrO2基陶瓷复相材料在功能材料和结构材料等领域都有重要的应用.在简要讨论ZrO2的基本性质和ZrO2陶瓷特点的基础上,着重论述了ZrO2基陶瓷复相材料的研究近况及发展趋势. 关键词:陶瓷复合材料 Y-TZP ZrO2陶瓷; [全文内容正在添加中] ......
Study on Microstructure of Alumina Based Rare Earth Ceramic Composite Xu Chonghai1 (1.School of Mechanical Engineering, Shandong Institute of Light Industry, Jinan 250353, China) Abstract:Analysis techniques such as SEM, TEM and EDAX were used to investigate the microstructure of rare earth reinforced Al2O3/(W, Ti)C ceramic composite. Chemical and physical compatibility of the composite......
deposited on aluminum alloy and carbon steel were considered. The fracture mechanics of the ceramic coatings mechanisms due to occurrence of surface ring cracks extending traverse the coating...Element Analysis of Ceramic Coatings under Spherical Indentation with Metallic Interlayer: PartⅡRing CrackMinh-Quy LE,Seock-Sam KIM摘 要:<正>Spherical......
Oxidation and Mechanical Properties of SiC/SiC-MoSi2-ZrB2 Coating for Carbon/Carbon CompositesXiyuan Yao,Hejun Li,Yulei Zhang,Yongjie WangState Key Laboratory of Solidification Processing,Northwestern Polytechnical University摘 要:To improve oxidation resistance of carbon/carbon(C/C) composites,a SiC/SiC-MoSi2-ZrB2 double-layer ceramic coating......
]. Journal of the European Ceramic Society, 2001, 21(13): 2407-2412. [9] KWON O S, HONG S H, KIM H. The improvement in oxidation resistance of carbon by a graded SiC/SiO2 coating [J]. Journal of the European Ceramic Society, 2003, 23(16): 3119-3124. [10] ZHAO Juan, LIU Lang, GUO Quan-gui, SHI Jing-li, ZHAI Geng-tai. Oxidation protective behavior of SiC/Si-MoSi2 coating for different graphite......
Characterization of micro-arc ceramic coatings on Ti-2Al-2.5Zr alloy substratesHE Xiao1),WU Jihong1,2),and SHEN Liru2) 1) Department of Applied Physics,University of Electronic Science and Technology... decrease while the discharge channel size increases clearly with an increase in treating time. With an increase of the coating thickness the porous layer thickness increases apparently. Phase composition......
在纳米尺度,填充在涂层的大颗粒之间,使涂层致密化程度得以提高,因此纳米Al203改性涂层的显微硬度较高,且其耐磨性能明显优于等离子喷涂层. 关键词:纳米Al203颗粒；Al203；T102；等离子喷涂；复合陶瓷涂层；激光熔覆 中图分类号:TQ 174. 75 文献标识码:A Plasma- sprayed ceramic coating by laser... ceramic coating consists of crAl203 and Ti02, and lamellar structure of plasma sprayed coatings is eliminated after the lasercladding. A large number of Al203 nano-particles are found among......
