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; 文献标志码:A High temperature oxidation behavior of Si/mullite/Er2SiO5 environmental barrier coatings FAN Jin-juan1, 2, CHANG Zhen-dong2, TAO Chun-hu2, WANG Fu-chi1 (1. School... environmental barrier coatings (EBCs) were manufactured by chemical vapor deposition and plasma spraying on the SiC/SiC composites. The oxidation tests at 1350 ℃ and 1500 ℃ were carried out to study the high......
La_2O_3,CeO_2掺杂Sm_2Zr_2O_7陶瓷制备及热物理性能 张红松1,王富耻2,刘玲2,徐强2,胡仁喜3 (1.河南工程学院,河南,郑州,450007;2.北京理工大学,北京,100081;3.解放军军械工程学院,河北,石家庄,050003) 摘要:以Sm_2O_3, La_2O_3, ZrO_2和CeO_2为原料,采用固相反应法制备了(Sm_0.5La_0.5)_2(Zr_0.6Ce_0.4)_2O_7陶瓷.用X射线衍射(XRD),扫描电镜(SEM)研究了样品的相成分和微观组织,用激光脉冲法和推杆法测量了样品的热导率和热膨胀系数.结果表明,所制备的样品具有萤石晶体结构,且组织致密晶界清晰,并具有较低的热导率和满足热障涂层要求的热膨胀系数. 关键词:热障涂层; 热物理性能; 掺杂; 稀土锆酸盐; thermal barrier coatings......
; 无压烧结; 致密化; thermal barrier coatings; Sm_2Zr_2O_7; carbon nanotube; pressureless sintering; densification; [全文内容正在添加中] ......
, JOHNSON L F. Effective thermal conductivity of composites with interfacial thermal barrier resistance [J]. Journal of Composite Materials, 1987, 21(6): 508-515. [17] TORQUATO S, RINTOUL D M. Effect... Effect of carbide formers on microstructure and thermal conductivity of diamond-Cu composites for heat sink materials XIA Yang(夏 扬), SONG Yue-qing(宋月清), LIN Chen-guang(林晨光), CUI Shun(崔......
encountered problems due to the very serious interdiffusion between the coatings and the substrates[14]. To solve this problem, a diffusion barrier must be included in the coating system. In this paper, the effect of NiCoCrAlY overlay coatings on the oxidation resistance of γ-TiAl was studied at 900℃ in static air. To hinder the interdiffusion of the elements, the Al/Al2O3 diffusion barrier......
Reaction Mechanism and Thermal Insulation Property of Al-deposited 7YSZ Thermal Barrier CoatingXiaofeng Zhang1,2,Kesong Zhou1,2,Wei Xu1,2,Jinbing Song2,Chunming Deng2,Min Liu21. School of Materials... the performance and efficiency of thermal barrier coating(TBC), it is important to improve the thermal insulation property. In this work, a columnar Al film was deposited at the top of 7 wt......
Diffusion Barrier Coating System and Oxidation Behavior of Coated Alloys () 摘要: 1 Introduction Research into the formation of Re-based alloys is in progress in our laboratory to provide a diffusion barrier layer between heat-resistant alloys and Al reservoir layers, which assist in the formation and maintenance a protective Al2O3 scale for long periods. Coatings with a two-layered structure......
in composite coatings can improve significantly the coating wear resistance and have a impact on coating friction behavior. 关键词:PEEK; thermal spray; serigraphy; coating; friction; wear; [全文内容正在添加中] ...Design of Polymer Coatings in Automotive Engines BORDES Jean-Michel1,ZHANG Ga2,CHRISTIAN Coddet2,LIAO Han-lin2 (1.Technical Center of Belchamp 25420 Voujeaucourt, PSA Peugeot Citroen, France......
solution. Key words: thermal barrier coatings; nanopowder; rare-earth co-doped zirconia; alcohol/water solvent; reverse co-precipitation 4.0%~4.5%Y2O3-ZrO2(YSZ,摩尔分数)是目前广泛应用的热障涂层(TBCs)材料.当其工作温度长期高于1 200... stability of plasma sprayed ZrO2-Y2O3-La2O3 coatings[J]. Surface and Coating Technology, 2005, 194(1): 31-35. [2] Matsumoto M, Yamaguchi N, Matsubara H. Low thermal conductivity and high temperature......
Nanostructured Thermal Spray Feedstocks:the Next Generation of Engineered Coatings T.Danny Xiao1 (1.Inframat(R) Corporation, 20 Washington Ave., Suite 106, North Haven, CT 06473, USA.) 摘要:This paper presents an overview of the recent research activities at lnframat(R)Corporation(IMC)on the development of thermal spray processes for nanostructured coatings, which enable improved performance......
