柳青,陈俊浩,丁海民,王进峰,储开宇,徐雪霞

• 1:华北电力大学能源动力与机械工程学院
• 2:河北省电力机械装备健康维护与失效预防重点实验室
• 3:国网河北省电力有限公司电力科学研究院

摘要(Abstract)：

以Cu-5B中间合金和海绵锆为原料，通过熔铸法在Cu熔体中原位合成了ZrB_2颗粒增强Cu基复合材料，并利用光学显微镜、X射线衍射仪、扫描电镜(SEM)和能谱仪等研究了不同制备温度下Cu-ZrB_2复合材料的组织及性能。结果表明：随着制备温度的升高，复合材料中的ZrB_2颗粒趋向集聚，生成量减少，且ZrB_2聚集团的平均尺寸快速增大。扫描电镜结果表明铜基体中的ZrB_2颗粒存在多种形貌，当制备温度为1150℃时，颗粒为不规则片状，尺寸在0.5μm左右；当温度升高到1250℃时，颗粒生长为板状，尺寸达到了5μm以上。另外，制备温度也会对复合材料的性能产生影响，当温度从1150℃升高到1300℃时，复合材料的硬度从105.4 HV0.5降低到80.7 HV0.5,导电率从454.3 S·cm~(-1)下降到420.5 S·cm~(-1)。

关键词(KeyWords)： 铜基复合材料;ZrB_2颗粒;制备温度;性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(52001121);; 北京市自然科学基金青年基金(2214079);; 河北省自然科学基金青年基金(E2019502057);; 中央高校基本科研业务费专项资金面上项目(2021MS085);; 保定市科技计划项目(2172P005)

作者(Author): 柳青,陈俊浩,丁海民,王进峰,储开宇,徐雪霞

DOI: 10.13289/j.issn.1009-6264.2021-0473

参考文献(References)：

• [1] 李龙健，于凤云，李仁庚，等.高性能铜合金研究现状及发展趋势[J].特种铸造及有色合金，2021,41(3):293-298.LI Long-jian,YU Feng-yun,LI Ren-geng,et al.Research progress and development trend of high-performance Cu alloys[J].Special Casting and Nonferrous Alloys,2021,41(3):293-298.
• [2] 孙靖，郭世柏.超细Mo-40Cu合金的制备及其性能[J].材料热处理学报，2016,37(8):7-12.SUN Jing,GUO Shi-bo.Fabrication and property of ultrafine Mo-40Cu alloy[J].Transactions of Materials and Heat Treatment,2016,37(8):7-12.
• [3] Saunders T,Tatarko P,Grasso S,et al.Effectiveness of boria welding flux in improving the wettability of ZrB2 in contact with molten Cu[J].Journal of the European Ceramic Society,2018,38(12):4198-4202.
• [4] 朱雁风，彭博，杜超，等.放电等离子法烧结制备SiC纳米管/ZrB2复合陶瓷的性能[J].材料热处理学报，2019,40(12):7-12.ZHU Yan-feng,PENG Bo,DU Chao,et al.Properties of SiC nanotubes/ZrB2 composite ceramics prepared by spark plasma sintering[J].Transactions of Materials and Heat Treatment,2019,40(12):7-12.
• [5] Nutwara R,Sutham N,Tawat C.Zirconium diboride-mullite composite form mineral:Combustion synthesis,consolidation,characterizations and properties[J].Ceramics International,2020,46(11):18842-18850.
• [6] Passerone A,Muolo M L,Novakovic R,et al.Liquid metal/ceramic interactions in the (Cu,Ag,Au)/ZrB2 systems[J].Journal of the European Ceramic Society,2006,27(10):3277-3285.
• [7] 陈志科，梁迪飞，邓龙江，等.B4C还原法制备ZrB2及其高温导电性研究[J].电子元件与材料，2017,36(7):28-33.CHEN Zhi-ke,LIANG Di-fei,DENG Long-jiang,et al.Preparation of ZrB2 by reduction of B4C and its high temperature conductivity[J].Electronic Components and Materials,2017,36(7):28-33.
• [8] Wang C C,Lin H J,Zhang Z G,et al.Fabrication,interfacial characteristics and strengthening mechanisms of ZrB2 microparticles reinforced Cu composites prepared by hot-pressed sintering[J].Journal of Alloys and Compounds,2018,748:546-552.
• [9] Zhang S,Kang H J,Li R G,et al.Microstructure evolution,electrical conductivity and mechanical properties of dual-scale Cu5Zr/ZrB2 particulate reinforced copper matrix composites[J].Materials Science and Engineering A,2019,762:138108.
• [10] Wei S,Hai L W,Shi J Z,et al.Processing and properties of ZrB2-Cu composites sintered by hot-pressing sintering[J].Key Engineering Materials,2014,3050(602/603):447-450.
• [11] Pouyani M R,Rajabi M.Microwave-assisted synthesis of Cu-ZrB2 MM Nano-composite using double pressing double sintering method[J].Journal of Materials Science:Materials in Electronics,2019,30(1):266-276.
• [12] Jia Y,Liu Z D,Li S,et al.Effect of cooling rate on solidification microstructure and mechanical properties of TiB2-containing TiAl alloy[J].Transactions of Nonferrous Metals Society of China,2021,31(2):391-403.
• [13] Durga V N,Bala K B,Gopi K M.Microstructure,mechanical properties and fracture mechanisms of ZrB2 ceramic reinforced A7075 composites fabricated by stir casting[J].Materials Today Communications,2020,25:101289.
• [14] Singh P K,Singh P K,Sharma K.Manufacturing and categorization of Al/TiB2 metal matrix compound by means of stir casting method[J].Materials Today:Proceedings,2021,45(P2):3568-3573.
• [15] Zhang W X,Lin B,Tang Y,et al.Microstructures and mechanical properties of high-performance nacre-inspired Al-Si/TiB2 composites prepared by freeze casting and pressure infiltration[J].Ceramics International,2021,47(12):16891-16901.
• [16]■,et al.Synthesis,microstructure and mechanical properties of ZrB2 nano and microparticle reinforced copper matrix composite by in situ processings[J].Materials and Design,2014,62:409-415.
• [17] 王圆圆，范景莲，陆琼，等.ZrB2含量和烧结温度对ZrC-ZrB2复合材料组织与性能的影响[J].粉末冶金材料科学与工程，2020,25(2):157-163.WANG Yuan-yuan,FAN Jing-lian,LU Qiong,et al.Effect of ZrB2 content and sintering temperature on the microstructure and properties of ZrC-ZrB2 composites[J].Materials Science and Engineering of Powder Metallurgy,2020,25(2):157-163.
• [18] Li Y,Li Y H,Zhang Z H,et al.Preparation of Mn3O4 by precipitation conversion-roasting method and its morphological evolution[J].Ceramics International,2021,47(15):21570-21575.
• [19] Sun J,Wang X Q,Chen Y,et al.Effect of Cu element on morphology of TiB2 particles in TiB2/Al-Cu composites[J].Transactions of Nonferrous Metals Society of China,2020,30(5):1148-1156.
• [20] 杨滨，王玉庆，周本濂.铝熔体中原位反应生成TiB2颗粒的机制[J].金属学报，1998,34(1):100-106.YANG Bin,WANG Yu-qing,ZHOU Ben-lian.Analysis of the formation mechanism of TiB2 particalate fabricated by in-situ reaction in molten aluminum[J].Acta Metallurgica Sinica,1998,34(1):100-106.
• [21] Fan Z,Guo Z X,Cantor B.The kinetics and mechanism of interfacial reaction in sigma fibre-reinforced Ti MMCs[J].Composites Part A:Applied Science and Manufacturing,1997,28(2):131-140.
• [22] 郝桂亮，徐强，朱时珍，等.ZrO2对ZrB2-SiC复合材料中ZrB2生长机制的影响[J].兵工学报，2008,29(8):940-943.HAO Gui-liang,XU Qiang,ZHU Shi-zhen,et al.Effect of ZrO2 on the growth mechanism of ZrB2 in ZrB2-SiC composites[J].Acta Armamentarii,2008,29(8):940-943.
• [23] Li P T,Li Y G,Nie J F,et al.Influence of forming process on three-dimensional morphology of TiB2 particles in Al-Ti-B alloys[J].Transactions of Nonferrous Metals Society of China,2012,22(3):564-570.
• [24] 蔡薇，柳瑞清，王晓娟.铬锆含量对铜合金组织及性能的影响[J].热加工工艺，2006,35(3):10-11.CAI Wei,LIU Rui-qing,WANG Xiao-juan.Effect of Cr-Zr content on microstructure and properties of copper alloy[J].Hot Working Technology,2006,35(3):10-11.

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