热循环对片层石墨/铝复合材料的强度和热导率的影响

刘晓云; 王文广; 陈礼清; 王东; 姜月秋; 肖伯律; 马宗义

doi:10.13801/j.cnki.fhclxb.20201110.001

热循环对片层石墨/铝复合材料的强度和热导率的影响

doi: 10.13801/j.cnki.fhclxb.20201110.001

刘晓云^{1, 2,},
王文广^2,,
陈礼清^3,,
王东^2, ,,
姜月秋^1,,
肖伯律^2,,
马宗义^2,

1.
沈阳理工大学　理学院，沈阳 110159
2.
中国科学院　金属研究所，沈阳 110016
3.
东北大学　轧制技术及连轧自动化国家重点实验室，沈阳 110819

基金项目: 国家重点研发计划(2017YFB0703104)；辽宁省自然科学基金(2019-ZD-0253)；辽宁省“兴辽英才计划”创新领军人才(XLYC1902095)

详细信息

通讯作者:
王东，博士，研究员，硕士生导师，研究方向为金属基复合材料　 E-mail：dongwang@imr.ac.cn

中图分类号: TN305；TB331
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- 文章访问数: 1031
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- 被引次数: 0
出版历程
- 收稿日期: 2020-08-03
- 录用日期: 2020-11-03
- 网络出版日期: 2020-11-10
- 刊出日期: 2021-04-08

Effect of thermal cycling treatment on the strength and thermal conductivity of graphite flakes/Al composites

LIU Xiaoyun^{1, 2
,},
WANG Wenguang^2
,,
CHEN Liqing^3
,,
WANG Dong^{2
, ,},
JIANG Yueqiu^1
,,
XIAO Bolü^2
,,
MA Zongyi^2
,

1.
College of Science, Shenyang Ligong University, Shenyang 110159, China
2.
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
3.
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China

摘要

摘要: 采用粉末冶金法制备片层石墨增强Al基复合材料(50vol%G_f/6061Al)，G_f与Al基体结合紧密，界面处无裂纹、孔洞等缺陷。复合材料在−50~120℃温度范围内分别循环10次、50次、100次和200次，研究不同的循环次数对材料组织和性能的影响。结果表明，循环不同次数时材料的密度没有明显的变化，但随着循环次数的增加，在热应力的作用下G_f发生破裂，材料的强度和热导率均有所下降，当循环次数达到100次时，性能下降速度最快，与未循环样品相比，抗弯强度降低27.4%，热导率下降11.5%。进一步增加循环次数，破碎的G_f和开裂的界面可以有效缓解冷热循环导致的热应力，G_f破坏程度减缓，当循环次数为200次时，与未循环样品相比抗弯强度降低32%，热导率下降13.1%，性能降低趋于平缓。
- 片层石墨 /
- 铝基复合材料 /
- 热导率 /
- 冷热循环 /
- 抗弯强度
Abstract: The graphite flakes reinforced Al matrix composites (50vol%G_f/6061Al) were fabricated by powder metallurgy technique. The G_f had a well bonding with Al matrix without cracks and pores. The composites were exposed to a thermal cycling test in the temperature range of −50-120℃. The microstructure and properties of 50vol%G_f/6061Al were examined when the composites were tested by 10, 50, 100 and 200 thermal cycles. The density of the composites is almost unchanged under different thermal cycles. With the number of the thermal cycle increasing, the G_f in the composites are cracked due to the stress from the difference of the thermal expansion coefficient between G_f and Al matrix. The strength and thermal conductivity of the composite are decreased with the number of the thermal cycle increasing. After 100 thermal cycles, the bending strength decreases by 27.4% and thermal conductivity decreases by 11.5% compared to that of the sample without thermal cycles. The broken G_f and the cracked interface between G_f and Al matrix could release the thermal stress, therefore, the cracking of the G_f would be retarded. The microstructure and properties of the composites are not serious changed. After 200 thermal cycles, the bending strength decreases by 32% and TC decreases by 13.1% compared to that of the sample without thermal cycles.
- graphite flake /
- Al matrix composite /
- thermal conductivity /
- thermal cycling /
- bending strength

HTML全文

图 1 片层石墨(G_f)的SEM图像

Figure 1. SEM images of different-sized graphite flakes (G_f)

下载: 全尺寸图片幻灯片

图 2 50vol%G_f/6061Al分布与界面的SEM图像

Figure 2. SEM images of 50vol%G_f/6061Al composites

下载: 全尺寸图片幻灯片

图 3 −50º~120℃冷热循环不同次数50vol%G_f/6061Al样品的金相照片

Figure 3. Optic photos of the 50vol%G_f/6061Al specimens after different thermal-cold cyclings from −50℃ to 120℃

下载: 全尺寸图片幻灯片

图 4 −50~120℃冷热循环200次后50vol%G_f/6061Al复合材料界面的SEM图像

Figure 4. SEM image of the interface between G_f and Al matrix by 200 thermal-cold cycling testing during −50-120℃

下载: 全尺寸图片幻灯片

图 5 50vol%G_f/6061Al在−50~120℃循环后的性能

Figure 5. Properties of 50vol%G_f/6061Al during −50-120℃ thermal-cold cycle testing

下载: 全尺寸图片幻灯片

图 6 −50~120℃进行不同次数冷热循环50vol%G_f/6061Al实验样品抗弯强度的断口形貌

Figure 6. Fracture morphologies of the 50vol%G_f/6061Al specimens under different cycles by thermal cycle testing during −50-120℃

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下载: 全尺寸图片幻灯片

参考文献(25)

[1]	MALLIK S, EKERE N, BEST N, et al. Investigation of thermal management materials for automotive electronic control units[J]. Applied Thermal Engineering,2011,31(2-3):355-362. doi: 10.1016/j.applthermaleng.2010.09.023
[2]	李志强, 谭占秋, 范根莲, 等. 高效热管理用金属基复合材料研究进展[J]. 中国材料进展, 2013(7):431-441. LI Zhiqiang, TAN Zhanqiu, FAN Genlian, et al. Progress of metal matrix composites for efficient thermal management applications[J]. Materials China,2013(7):431-441(in Chinese).
[3]	MATHIAS J D, GEFFROY P M, SILVAIN J F. Architectural optimization for microelectronic packaging[J]. Applied Thermal Engineering,2009,29(11-12):2391-2395. doi: 10.1016/j.applthermaleng.2008.12.037
[4]	SIDHU SS, KUMAR S, BATISH A. Metal matrix composites for thermal management: A review[J]. Critical Reviews in Solid State and Materials Sciences,2016,41(2):132-157. doi: 10.1080/10408436.2015.1076717
[5]	曾婧, 彭超群, 王日初, 等. 电子封装用金属基复合材料的研究进展[J]. 中国有色金属学报, 2015(12):3255-3270. ZENG J, PENG C Q, WANG R C, et al. Research progress on metal matrix composites for electronic packaging[J]. The Chinese Journal of Nonferrous Metals,2015(12):3255-3270(in Chinese).
[6]	XUE C, YU J K. Enhanced thermal transfer and bending strength of SiC/Al composite with controlled interfacial reaction[J]. Materials & Design,2014,53:74-78.
[7]	ZHANG W L, DING D Y, GAO P. High volume fraction Si particle-reinforced aluminium matrix composites fabricated by a filtration squeeze casting route[J]. Materials & Design,2016,90:834-838.
[8]	LIU X Y, WANG W G, WANG D, et al. Effect of nanometer TiC coated diamond on the strength and thermal conductivity of diamond/Al composites[J]. Materials Chemistry and Physics,2016,182:256-262. doi: 10.1016/j.matchemphys.2016.07.030
[9]	RAPE A, LIU X, KULKARNI A, et al. Alloy development for highly conductive thermal management materials using copper-diamond composites fabricated by field assisted sintering technology[J]. Journal of Materials Science,2013,48:1262-1267. doi: 10.1007/s10853-012-6868-2
[10]	刘晓云, 王文广, 王东, 等. 片层石墨尺寸对片层石墨/铝复合材料的强度和热导率的影响[J]. 金属学报, 2017, 53:869-878. doi: 10.11900/0412.1961.2017.00015 LIU X Y, WANG W G, WANG D, et al. Effect of graphite flake size on the strength and thermal conductivity of graphite flakes/Al composites[J]. Acta Metallurgica Sinica,2017,53:869-878(in Chinese). doi: 10.11900/0412.1961.2017.00015
[11]	SHAO X Z, SUM W C, JIN Z X, et al. Modeling the in-plane thermal conductivity of a graphite/polymer composite sheet with a very high content of natural flake graphite[J]. Carbon,2012,50:5052. doi: 10.1016/j.carbon.2012.06.045
[12]	CHAMROUNE N, MWREIB D, DWLANGE F, et al. Effect of flake powder metallurgy on thermal conductivity of graphite flakes reinforced aluminum matrix composites[J]. Journal of Materials Science,2018,53:8180-8192. doi: 10.1007/s10853-018-2139-1
[13]	ZHOU C, CHEN D, ZHANG X B, et al. The roles of geometry and topology structures of graphite fillers on thermal conductivity of the graphite/aluminum composites[J]. Physics Letters A,2015,379:452-457. doi: 10.1016/j.physleta.2014.10.048
[14]	LIU B, ZHANG D Q, LI X F, et al. Effect of graphite flakes particle sizes on the microstructure and properties of graphite flakes/copper composites[J]. Journal of Alloys and Compounds,2018,766:382-390. doi: 10.1016/j.jallcom.2018.06.129
[15]	KURITA H, MIYAZAKI T, KAWASAKI, A, et al. Interfacial microstructure of graphite flake reinforced aluminum matrix composites fabricated via hot pressing[J]. Composites: Part A,2015,73:125-131. doi: 10.1016/j.compositesa.2015.03.013
[16]	LI W J, LIU Y, WU G H. Preparation of graphite flakes/Al with preferred orientation and high thermal conductivity by squeeze casting[J]. Carbon,2015,95:545-551. doi: 10.1016/j.carbon.2015.08.063
[17]	HAN X P, HUANG Y, ZHOU S H, et al. Effects of graphene content on thermal and mechanical properties of chromium-coated graphite flakes/Si/Al composites[J]. Journal of Materials Science: Materials in Electronics,2018,29:4179-4189. doi: 10.1007/s10854-017-8363-7
[18]	YI L F, YOSHIDA N, ONDA T. Effect of processing conditions on microstructure and thermal conductivity of hot-extruded aluminum/graphite composites[J]. Materials Transactions,2019,60:136-143. doi: 10.2320/matertrans.M2018220
[19]	XUE C, BAI H, TAO P F. Analysis on thermal conductivity of graphite/Al composite by experimental and modeling study[J]. Journal of Materials Engineering and Performance,2017,26:327-334. doi: 10.1007/s11665-016-2447-z
[20]	XIE H, YU J K, JIANG D P, et al. Microstructure and thermal properties of Cr₇C₃ coated graphite flakes/Al composites[J]. Materials Research Express,2019,6:066308. doi: 10.1088/2053-1591/ab0d9f
[21]	HUANG Y, PENG X Y, YANG Y W, et al. Electroless Cu/Ni plating on graphite flake and the efects to the properties of graphite flake/Si/Al hybrid composites[J]. Metals and Materials International,2018,24:1172-1180. doi: 10.1007/s12540-018-0052-4
[22]	XUE C, BAI H, TAO P F, et al. Thermal conductivity and mechanical properties of flake graphite/Al composite with a SiC nano-layer on graphite surface[J]. Materials and Design,2016,108:250-258. doi: 10.1016/j.matdes.2016.06.122
[23]	WANG C, BAI H, XUE C, et al. On the influence of carbide coating on the thermal conductivity and flexural strength of X (X=SiC, TiC) coated graphite/Al composites[J]. RSC Advances,2016,6:107483. doi: 10.1039/C6RA21754K
[24]	OZDEMIR I, TOPARLI M. An investigation of Al-SiCp composites under thermal cycling[J]. Journal of Composite Materials,2003,37:1839-1850. doi: 10.1177/002199803036245
[25]	HUANG Y, OUYANG Q B, GUO Q, et al. Graphite film/aluminum laminate composites with ultrahigh thermal conductivity for thermal management applications[J]. Materials & Design,2016,90:508-515.