潘传增,张靖,赵忠民,张龙

• 1:军械工程学院车辆与电气工程系

摘要(Abstract)：

采用超重力辅助反应加工技术,制备出了TiC-TiB2复合陶瓷。XRD、SEM与EDS结果表明,TiC-TiB2复合陶瓷主要由大量、细小的TiB2片晶均匀分布于TiC基体上的独特组织构成。超重力下的燃烧化学和液相分离效应促使反应原料转化为纯净的Ti-W-Cr-C-B合金液,并随即发生凝固反应。TiC在凝固过程中率先形核,TiB2依附于TiC形核析出,二者以合作方式生长,但是由于TiC较TiB2具有更快的生长速率,从而形成TiC包覆TiB2片晶的独特组织。

关键词(KeyWords)： TiC-TiB2;复合陶瓷;燃烧合成;快速凝固;结构转变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51202293,50172229);; 军械工程学院科研基金项目(YJJXM12044)

作者(Author): 潘传增,张靖,赵忠民,张龙

DOI: 10.13289/j.issn.1009-6264.2013.10.004

参考文献(References)：

• [1]益小苏,杜善义,张立同.复合材料手册[M].北京:化学工业出版社,2009.
• [2]Ordanyan S S,Unrod V I,Avgustinik A I.Reactions in the system TiCx-TiB2[J].Powder Metall Met Ceram,1975,14:729-731.
• [3]Holleck H,Leiste H,Schneider W.Significance of phase boundaries in wear resistant TiC/TiB2materials.Part 1:Investigations with transmission electron microscopy[J].Int J Refract Met H,1987,6(3):149-154.
• [4]Vallauri D,Atias I C,Adrian A.TiC-TiB2composites:A review of phase relationships,processing and properties[J].J Eur Ceram Soc,2008,28(8):1697-1713.
• [5]Li W J,Tu R,Goto T.Preparation of directionally solidified TiB2-TiC eutectic composites by a floating zone method[J].Mater Lett,2006,60:839-843.
• [6]Agrafiotis C C,Hlavacek V,Puszynski J A.Direct synthesis of composites and solid solutions by combustion reactions[J].Combust Sci Technol,1992,88:187-192.
• [7]Wang L,Wixom M R,Thompson L T.Structural and mechanical properties of TiB2and TiC prepared by self-propagating high-temperature synthesisdynamic compaction[J].J Mater Sci,1994,29:534-551.
• [8]潘传增,张龙,赵忠民,等.超重力下燃烧合成TiB2-TiC共晶复合陶瓷研究[J].复合材料学报,2010,27(1):109-117.PAN Chuan-zeng,ZHANG Long,ZHAO Zhong-min,et al.TiB2-TiC eutectic composites prepared by combustion synthesis under high gravity[J].Acta Materiae Compositae Sinica,2010,27(1):109-117.
• [9]Sanin V N,Yukhvid V I.Centrifugation-driven melt infiltration in high-temperature layered systems[J].Inorganic Materials,2005,41(3):247-254.
• [10]王富耻.材料现代分析测试方法[M].北京:北京理工大学出版社,2006.
• [11]Zou B L,Shen P,Jiang Q C.Dependence of the SHS reaction behavior and product on B4C particle size in Al-Ti-B4C and Al-TiO2-B4C systems[J].Materials Research Bulletin,2009,44(3):499-504.
• [12]殷声.燃烧合成[M].北京:冶金工业出版社,1999.
• [13]Wang H Y,Jiang Q C,Zhao Y Q,et al.Fabrication of TiB2and TiB2-TiC particulates reinforced magnesium matrix composites[J].Materials Science and Engineering A,2004,372(1-2):109-114.
• [14]Vallauri D,Shcherbakov V A,Khitev A V.Study of structure formation in TiC-TiB2-Me x O y ceramics fabricated by SHS and densification[J].Acta Materialia,2008,56:1380-1389.
• [15]胡汉起.金属凝固原理(第2版)[M].北京:机械工业出版社,2000.
• [16]Zou B L,Shen P,Gao Z M et al.Combustion synthesis of TiCx-TiB2composites with hypoeutectic,eutectic and hypereutectic microstructures[J].J Eur Ceram Soc,2008,28:2275-2279.
• [17]Tu J P,Wang N Y,Yang Y Z,et al.Preparation and properties of TiB2nanoparticle reinforced copper matrix composites by in situ processing[J].Materials Letters,2002,52:448-452.
• [18]Rudy E.A high temperature phase with theε-carbide structure in the molybdenum-chromium-carbon system[J].Journal of the Less Common Metals,1973,33(3):327-332.

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