Abstract:The composite powders of carbon nanotubes(CNTs) and Al-5%Mg(mass fraction) were fabricated by high-energy ball milling and hot-pressing sintering were used to consolidate the ball-milled composite powders with different CNTs contents. The results show that a certain mass of CNTs can be homogeneously dispersed in the matrix through the high-energy ball milling, the most of CNTs are embedded in the Al matrix and the CNTs have a close bonding with the Al matrix. In addition, the CNTs can play the role of grain refining. When the CNTs content is increased to 3 %, the average grain size of the composite powder reaches the minimum value 63.6nm and then the CNTs content is further increased, the average grain size of the composite powder grows big. When the CNTs content reaches 2%, tensile strength and hardness of the composites reaches the maximum value, up to 42.39% in tensile strength and 36.5% in hardness, compared to the matrix. Fine grain strengthening and load transfer are proved to be the strengthening mechanism of the CNTs/Al composite.
陈亚光, 蔡晓兰, 王开军, 胡翠, 孙鸿鹏, 乐刚. 高能球磨法制备的CNTs/Al-5%Mg复合材料的力学性能及断裂特性[J]. 材料工程, 2014, 0(11): 55-61.
CHEN Ya-guang, CAI Xiao-lan, WANG Kai-jun, HU Cui, SUN Hong-peng, LE Gang. Mechanical Properties and Fracture Feature of CNTs/Al-5%Mg Composite Prepared by High-energy Ball Milling. Journal of Materials Engineering, 2014, 0(11): 55-61.
[1] WONG P H S, AKINWANDE D. Carbon Nanotube and Graphene Device Physics[M]. Cambridge: Cambridge University Press, 2011.74-81.
[2] ODOM T W, HUANG J L, KIM P, et al. Atomic structure and electronic properties of single-walled carbon nanotubes[J]. Nature,1998,391: 62-64.
[3] 丁鹤雁. 热处理前后包覆Co及Co/Fe碳纳米管电磁性能的研究[J]. 航空材料学报,2013,33(5):54-60.DING He-yan. Electromagnetic properties of Co and Co/Fe coated MWCNTs before and after heat treatment[J]. Journal of Aeronautical Materials, 2013,33(5):54-60.
[4] TESSONNIER J P, ROSENTHAL D, HANSEN T W, et al. Analysis of the structure and chemical properties of some commercial carbon nanotubes[J].Carbon,2009,47(7):1779-1798.
[5] ZOO Y S, AN J W,LIM D P, et al. Effect of carbon nanotube addition on tribological behavior of UHMWPE [J].Tribology Letters,2004,16(4):305-309.
[6] CHEN L M, OZISIK R, SCHADLER L S. The influence of carbon nanotube aspect ratio on the foam morphology of MWNT/PMMA nanocomposite foams[J].Polymer, 2010,51(11):2368-2375.
[7] NING J W,ZHANG J J,PAN Y B, et al.Fabrication and thermal property of carbon nanotube/SiO2 composites [J].Journal of Materials Science Letters,2003,22(14):1019-1021.
[8] ZHU Y F, SHI L, LIANG J,et al.Synthesis of zirconia nanoparticles on carbon nanotubes and their potential for enhancing the fracture toughness of alumina ceramics[J]. Composites, 2008,39(7-8):1136-1141.
[9] ESAWI A M K, MORSI K, SAYED A, et al. The influence of carbon nanotube (CNT) morphology and diameter on the processing and properties of CNT-reinforced aluminium composites[J]. Composites, 2011,42 (3):234-243.
[10] CHOI H J, BAE D H. Strengthening and toughening of aluminum by single-walled carbon nanotubes[J]. Materials Science and Engineering,2011, 528(6):2412-2417.
[11] LIPECKA J, ANDRZEJCZUK M, LEWANDOWSKA M,et al. Evaluation of thermal stability of ultrafine grained aluminium matrix composites reinforced with carbon nanotubes[J]. Composites Science and Technology,2011,71(16):1881-1885.
[12] STEIN J, LENCZOWSKI B, FRETY N, et al. Mechanical reinforcement of a high-performance aluminium alloy AA5083 with homogeneously dispersed multi-walled carbon nanotubes[J]. Carbon,2012,50(6):2264-2272.
[13] CHOI H, WANG L, CHEON D, et al. Preparation by mechanical alloying of Al powders with single-, double-, and multi-walled carbon nanotubes for carbon/metal composites[J]. Composites Science and Technology, 2013,74(24) :91-98.
[14] 潘复生,张丁非.铝合金及应用[M].北京:化学工业出版社,2006.3-5.
[15] KANG K,BAE G, KIM B, et al. Thermally activated reactions of multi-walled carbon nanotubes reinforced aluminum matrix composite during the thermal spray consolidation[J]. Materials Chemistry and Physics,2012,133(1):495-499.
[16] LIU Q, KE L M, LIU F C, et al. Microstructure and mechanical property of multi-walled carbon nanotubes reinforced aluminum matrix composites fabricated by friction stir processing[J]. Materials and Design,2013,45:343-348.
[17] 钟蓉,丛洪涛,成会明,等.单壁纳米碳管增强纳米铝基复合材料的制备[J].材料研究学报,2002,16(4):344-348. ZHONG Rong, CONG Hong-tao, CHENG Hui-ming, et al. Preparation of SWNTs/Nano-Al composites[J]. Chinese Journal Materials Research,2002,16(4):344-348.
[18] CHOI H J,SHIN J Y,MIN B H,et al. Reinforcing effects of carbon nanotubes in structural aluminum matrix nanocomposites[J]. Journal of Materials Research,2009,24(8):2610-2616.
[19] MA P C, WANG S Q, KIM J K, TANG B Z. In-situ amino functionalization of carbon nanotubes using ball milling[J]. Journal of Nanoscience and Nanotechnology,2009,9(2):749-753.
[20] PEREZ-BUSTAMANTE R,PEREZ-BUSTAMANTE F, ESTRADA-GUEL I, et al. Characterization of Al2024-CNTs composites produced by mechanical alloying[J]. Powder Technology,2011,212(3):390-396.
[21] WANG L, CHOI H,MYOUNG J M, et al. Mechanical alloying of multi-walled carbon nanotubes and aluminium powders for the preparation of carbon/metal composites[J].Carbon,2009,47(15):3427-3433.
[22] MORSI K, ESAWI A. Effect of mechanical alloying time and carbon nanotube (CNT) content on the evolution of aluminium (Al)-CNT composite powders[J]. Journal of Materials Science, 2007,42(13):4954-4959.
[23] ESAWI A, MORSI K. Dispersion of carbon nanotubes (CNTs) in aluminum powder[J].Composites, 2007,38(2):646-650.
[24] LIU Z Y,WANG Q Z,XIAO B L,et al. Experimental and modeling investigation on SiCp distribution in powder metallurgy processed SiCp/2024 Al composites[J].Materials Science and Engineering,2010,527(21-22):5582-5591.
[25] MORSI K, ESAWI A, BORAH P, et al. Characterization and spark plasma sintering of mechanically milled aluminium-carbon nanotube (CNT) composite powders[J]. Journal of Composite Materials,2010,44(16):1991-2003.
[26] DEMCZYK B G, WANG Y M, CUMINGS J, et al. Direct mechanical measurement of the tensile strength and elastic modulus of multiwalled carbon nanotubes[J].Materials Science and Engineering: A,2002,334(1-2):173-178.
[27] OROWAN E. Von,zur kristallplastizitat III. über den Mechanismus des gleitvorganges[J]. Z Phys, 1934, 89: 634-659.
[28] COX H L. The elasticity and strength of paper and other fibrous materials[J].British journal of applied physics,1952,3(3):72-79.
[29] GEORGE R, KASHYAP K T, RAHUL R, et al. Strengthening in carbon nanotube/aluminium (CNT/Al) composites[J]. Scripta Materialia,2005,53(10): 1159-1163.
[30] ESAWI A,MORSI K,SAYED A, et al. Effect of carbon nanotube (CNT) content on the mechanical properties of CNT-reinforced aluminium[J]. Composites Science and Technology,2010,70(16):2237-2241.
[31] LANDRY K, KALOGEROPOULOU S, EUSTATHOPOULOS N. Wettability of carbon by aluminum and aluminum alloys[J].Materials Science and Engineering: A,1998,254(1-2):99-111.
[32] KWON H, PARK D H, SILVAIN J F, et al. Investigation of carbon nanotube reinforced aluminum matrix composite materials[J]. Composites Science and Technology,2010,70(3):546-550.
[33] SEONG H G, LOPEZ H F, ROBERTSON DP, et al. Interface structure in carbon and graphite fiber reinforced 2014 aluminum alloy processed with active fiber cooling[J]. Materials Science and Engineering: A, 2008,487(1-2):201-209.
[34] INAM F,YAN X,PEIJS T,REECE M J. The sintering and grain growth behaviour of Ceramic-carbon nanotube nanocomposites[J]. Composites Science and Technology,2010,70(6):947-952.