宋亚林,张龙,赵忠民,潘传增

• 1:军械工程学院车辆与电气工程系

摘要(Abstract)：

在超高重力场条件下,以B4C-Ti-Ni为反应体系,合成制备TiC-TiB2-Ni复相陶瓷。XRD和FESEM分析结果表明,反应燃烧充分,所得陶瓷基体由TiB2片晶相、不规则TiC相和Ni相构成。燃烧反应放热,促使反应物熔化生成Ti-C-B-Ni液相产物。待反应结束后,TiB2、TiC先后从陶瓷熔体中凝固形核、析出,而Ni相最后凝固,并对陶瓷基体补缩。随着Ni添加量的增加,陶瓷基体显微组织细化,且均质化水平极大提高,同时,陶瓷的相对密度、断裂韧性和弯曲强度逐渐增大,当Ni添加量为20mass%时,陶瓷性能最佳,分别为97.8%、13.1MPa獉m0.5及693MPa。其维氏硬度先升高后降低,当Ni的添加量为15mass%时,达到最高值,为18.6GPa。

关键词(KeyWords)： TiC-TiB2-Ni复相陶瓷;反应合成;凝固成形;超高重力场

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51072229,51202293)

作者(Author): 宋亚林,张龙,赵忠民,潘传增

DOI: 10.13289/j.issn.1009-6264.2015.09.005

参考文献(References)：

• [1]Yang Y F,Mu D K,Jiang Q C.A simple route to fabricate Ti C-Ti B2/Ni composite via thermal explosion reaction assisted with external pressure in air[J].Materials Chemistry and Physics,2014,143(2):480-485.
• [2]SUN Rong-lu,TANG Ying,YANG Xian-jin.Microstructure and tribological properties of in-situ synthesized Ti B2-Ti C/Ni based composite coating by laser cladding[J].Transactions of Materials and Heat Treatment,2004,25(5):1000-1003.
• [3]蒋军,朱德贵,王良辉,等.添加剂镍对原位合成Ti B2-Ti C复相陶瓷材料性能的影响[J].稀有金属,2003,27(4):421-425.JIANG Jun,ZHU De-gui,WANG Liang-hui,et al.Effects of nickel addition on properties of Ti B2-Ti C composites prepared by in-situ synthesis[J].Chinese Journal of Rare Metals,2003,27(4):421-425.
• [4]Ordanyan S S,Unrod V I,Avgustinik A I.Reactions in the system Ti Cx-Ti B2[J].Powder Metall Met Ceram,1975,14:729-731.
• [5]刘长霞,孙军龙.Ti B2含量和烧结温度对B4C/Al2O3基复合陶瓷的影响[J].材料热处理学报,2013,34(8):6-10.LIU Chang-xia,SUN Jun-long.Effect of Ti B2content and sintering temperature on microstructure and properties of B4C/Al2O3matrix ceramic composites[J].Transactions of Materials and Heat Treatment,2013,34(8):6-10.
• [6]赵忠民,张龙,宋义刚,等.Ti C-Ti B2细晶陶瓷凝固组织、断裂行为与原位增韧[J].特种铸造及有色金属,2011,31(11):986-993.ZHAO Zhong-min,ZHANG Long,SONG Yi-gang,et al.Solidification microstructure,fracture behavior and in-situ toughening of Ti C-Ti B2fine-grained composite ceramics[J].Special Casting&Nonferrous Alloys,2011,31(11):986-993.
• [7]Zhao Z M,Zhang L,Song Y G,et al.Microstructures and properties of large bulk solidified Ti C-Ti B2composites prepared by combustion synthesis under high gravity[J].Scripta Materialia,2009,61:281-284.
• [8]Huang X G,Zhang L,Zhao Z M,et al.Microstructure transformation and mechanical properties of Ti C-Ti B2ceramics prepared by combustion synthesis in high gravity field[J].Mate Sci Eng A,2012,553:105-111.
• [9]潘传增,张靖,赵忠民,等.基于Ti-B4C-C反应自生Ti C-Ti B2复合陶瓷的结构演化[J].材料热处理学报,2013,34(10):12-16.PAN Chuan-zeng,ZHANG Jing,ZHAO Zhong-min,et al.Microstructure evolution of Ti C-Ti B2composites by in-situ reaction of Ti-B4C-C system[J].Transactions of Materials and Heat Treatment,2013,34(10):12-16.
• [10]Sanin V N,Yukhvid V I.Centrifugation-driven melt infiltration in high-temperature layered systems[J].Inorganic Materials,2005,41(3):247-254.
• [11]Wang H Y,Huang L,Jiang Q C.In situ synthesis of Ti B2-Ti C particulates locally reinforced medium carbon steel-matrix composites via the SHS reaction of Ni-Ti-B4C system during casting[J].Materials Science and Engineering A,2005,407:98-104.
• [12]Kurz W,Fisher D J.凝固原理(第4版)[M].李建国,胡侨丹,译.北京:高等教育出版社,2010.
• [13]周玉.陶瓷材料学(第2版)[M].北京:科学出版社,2004.
• [14]Vallauri D,Atias I C,Chrysanthou A.Ti C-Ti B2composites:A review of phase relationships,processing and properties[J].Journal of the European Ceramic Society,2008,28:1697-1713.

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