王玉金,金秀宇,赵彦伟,周玉

• 1:哈尔滨工业大学特种陶瓷研究所

摘要(Abstract)：

以WC粒径为4μm气孔率为55%的多孔WC为预制体,Zr2Cu合金为浸渗剂,采用低温反应浸渗工艺制备了ZrC-W复合材料,系统研究了反应浸渗温度和时间对复合材料的物相组成及显微组织的影响规律。结果表明,随浸渗温度的升高,WC与Zr2Cu合金的反应程度增加,即生成的ZrC和W的含量增加,WC的残留量减小,当浸渗温度超过1500℃时,残留的WC转变为W2C相。随浸渗时间的延长,ZrC和W的含量增加,WC的残留量减小,ZrC的点阵常数增大,并出现W2Zr、Cu5Zr等中间反应相。

关键词(KeyWords)： ZrC-W复合材料;无压反应浸渗;浸渗工艺;组织结构

Abstract:

Keywords:

基金项目(Foundation): 国家然科学基金(50502012,51021002,51172052);; 高性能陶瓷和超微结构国家重点实验室开放基金(SKL201003SIC)

作者(Author): 王玉金,金秀宇,赵彦伟,周玉

DOI: 10.13289/j.issn.1009-6264.2012.s2.003

参考文献(References)：

• [1]Song G M,Wang Y J,Zhou Y.The mechanical and thermophysical properties of ZrC/W composites at elevated temperature[J].Materials Science andEngineering A,2002,334:223-232.
• [2]张太全.ZrCp/W复合材料的高温压缩变形行为及强化机制[D].哈尔滨工业大学,2008:98-99.
• [3]Lipke D W,Zhang Y,Liu Y,et al.Net-shape/net-dimension ZrC/W-based composites with complex geometries via rapid prototyping and displacivecompensation of porosity[J].Journal of the European Ceramic Society,2010,30(11):2265-2277.
• [4]Ostrovskii E K,Bednyak L G,Neshpor V S,et al.The stability of emission properties of ZrC-W alloys[J].Deposited at the Elektroniks CentralScientific Institute,No.5627/78,1978.
• [5]Zhang T Q,Wang Y J,Zhou Y,et al.Compressive deformation behavior of a 30vol%ZrCp/W composite at temperatures of 1300～1600℃[J].Materials Science and Engineering A,2008,474:382-389.
• [6]王玉金,张太全,赵彦伟,等.高温退火对20vol%ZrCP/W复合材料的组织结构和力学性能的影响[J].材料热处理学报.2009,30(2):18-21.WANG Yu-jin,ZHANG Tai-quan,ZHAO Yan-wei,et al.Effects of annealing on microstructure and mechanical properties of 20vol%ZrCP/Wcomposite[J].Transactions of Materials and Heat Treatment,2009,30(2):18-21.
• [7]Zhang S C,Hilmas G E,Fahrenholtz W G.Zirconium carbide-tungsten cermets prepared by in situ reaction sintering[J].Journal of the AmericanCeramic Society,2007,90(6):1930-1933.
• [8]Roosta M,Baharvandi H,Abdizade H.The evaluation of W/ZrC composite fabricated through reaction sintering of two precursors:Conventional ZrO2/WC and novel ZrSiO4/WC[J].International Journal of Refractory Metals and Hard Materials,2011,29:710-715.
• [9]Sandhage K H,Unocic R R,Dickerson M B,et al.Method for fabricating high-melting,wear-resistant ceramics and ceramic composites at lowtemperatures.USA,6596698[P],2003-7-29.
• [10]Grzesik Z,Dickerson M B,Sandhage K H.Incongruent reduction of tungsten carbide by a zirconium-copper melt[J].Journal of Material Research,2003,18(9):2135-2140.
• [11]Dickerson M B,Snyder R,Sandhage K H.Dense,near net-shaped,carbide/refractory metal composites at modest temperatures by the displacivecompensation of porosity(DCP)Method[J].Journal of the American Ceramic Society,2002,85(3):730.
• [12]Massalski T B.Binary alloy phase diagrams[B].CD-ROM,Plus Updates,Version ASM International,Materials Park,1996.
• [13]Zhao Y W,Wang Y J,Peng H-X,et al.Dense sub-micron-sized ZrC-W composite produced by reactive melt infiltration at 1200℃[J].InternationalJournal of Refractory Metals and Hard Materials,2012,30:196-199.
• [14]Zhao Y W,Wang Y J,Zhou Y,et al.Reactive wetting and infiltration of polycrystalline WC by molten Zr2Cu alloy[J].Scripta Materialia,2011,64(3):229-232.
• [15]Zhang S M,Wang S,Li W,et al.Microstructure and properties of W-ZrC composites prepared by the displacive compensation of porosity(DCP)method[J].Journal of Alloys and Compounds,2011,509(33):8327-8332.
• [16]Adabi M,Amadeh A.Effect of Infiltration parameters on composition of W-ZrC composites produced by displacive compensation of porosity(DCP)Method[J].International Journal of Refractory Metals and Hard Materials,2011,29(1):31-37.
• [17]赵彦伟,王玉金,张太全,等.W/ZrC复合材料的反应熔渗法制备.稀有金属材料与工程[J],2009,38(1):143-146.ZHAO Yan-wei,WANG Yu-jin,ZHANG Tai-quan,et al.Preparation of W/ZrC composites by reactive melt penetration[J].Rare Metal Materials andEngineering,2009,38(1):143-146.
• [18]Xiong W,Du Y,Zhang W,et al.Carbon-Tungsten-Zirconium[J].Landolt-Brnstein New Series IV/11E3,2010:31-47.
• [19]Oliveira F A C,Fernandes J C,Badie J M,et al.High meta-stability of tungsten sub-carbide W2C formed from tungsten/carbon powder mixture duringeruptive heating in a solar furnace[J].International Journal of Refractory Metals and Hard Materials,2007,25(1):101-106.
• [20]Nachiappan C,Rangaraj L,Divakar C.Synthesis and densification of monolithic zirconium carbide by reactive hot pressing[J].Journal of theAmerican Ceramic Society,2010,93(5):1341-1346.

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