利用冰模板法制备一种具有高孔隙率的碳纳米管强化氧化铝(CNTs Al2O3)多孔陶瓷复合材料.采用SEM,XRD及Raman对样品进行表征,研究碳纳米管(CNTs)含量对复合材料微观形貌、性能的影响.结果表明:随着CNTs含量的增大,复合材料的体积密度、孔隙率和抗压强度均发生改变;添加适量的CNTs能促进陶瓷孔壁烧结致密度,提高材料的抗压强度;但加入过量CNTs会导致CNTs团聚,嵌于陶瓷内壁形成微孔,反而降低了材料致密度与抗压强度;当CNTs含量达2.0％(质量分数)时,多孔陶瓷的抗压强度达到最大值4.52MPa,相对纯Al2O3多孔陶瓷提高了66％.
参考文献
| [1] | Xiangming Li;Pute Wu;Delan Zhu.Properties of porous alumina ceramics prepared by technique combining cold-drying and sintering[J].International Journal of Refractory Metals & Hard Materials,2013NOV.(NOV.):437-441. |
| [2] | Sylvain Deville.Freeze-Casting of Porous Ceramics: A Review of Current Achievements and Issues[J].Advanced Engineering Materials,20083(3):155-169. |
| [3] | Liangfa Hu;Chang-An Wang;Yong Huang;Chencheng Sun;Sheng Lu;Zijun Hu.Control of pore channel size during freeze casting of porous YSZ ceramics with unidirectionally aligned channels using different freezing temperatures[J].Journal of the European Ceramic Society,201016(16):3389-3396. |
| [4] | Philipp M Hunger;Amalie E Donius;Ulrike G K Wegst.Structure-property-processing correlations in freeze-cast composite scaffolds.[J].Acta biomaterialia,20135(5):6338-6348. |
| [5] | 孙莉莉;钟艳莉.碳纳米纤维/高密度聚乙烯复合材料结晶行为和介电性能的研究[J].材料工程,2013(4):17-22. |
| [6] | N.-H. Tai;M.-K. Yeh;J.-H. Liu.Enhancement of the mechanical properties of carbon nanotube/phenolic composites using a carbon nanotube network as the reinforcement[J].Carbon: An International Journal Sponsored by the American Carbon Society,200412/13(12/13):2774-2777. |
| [7] | Jing Wang;Huamin Kou;Xuejian Liu.Reinforcement of mullite matrix with multi-walled carbon nanotubes[J].Ceramics International,20075(5):719-722. |
| [8] | Jin Zhang;Hongling Zou;Quan Qing;Yanlian Yang;Qingwen Li;Zhongfan Liu;Xinyong Guo;Zuliang Du.Effect of Chemical Oxidation on the Structure of Single-Walled Carbon Nanotubes[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200316(16):3712-3718. |
| [9] | Ali Can Zaman;Cem B. Ustiindag;Figen Kaya.OH and COOH functionalized single walled carbon nanotubes-reinforced alumina ceramic nanocomposites[J].CERAMICS INTERNATIONAL,20122(2):1287-1293. |
| [10] | Mehdi Estili;Akira Kawasaki;Hiroki Sakamoto.The homogeneous dispersion of surfactantless, slightly disordered, crystalline, multiwalled carbon nanotubes in alpha-alumina ceramics for structural reinforcement[J].Acta materialia,200815(15):4070-4079. |
| [11] | Lahiri, D.;Ghosh, S.;Agarwal, A..Carbon nanotube reinforced hydroxyapatite composite for orthopedic application: A review[J].Materials science & engineering, C. Biomimetic and supramolecular systems,20127(7):1727-1758. |
| [12] | Claudia Walter;Suelen Barg;Na Ni.A novel approach for the fabrication of carbon nanofibre/ceramic porous structures[J].Journal of the European Ceramic Society,201313/14(13/14):2365-2374. |
| [13] | Shi C. Zhang;William G. Fahrenholtz;Greg E. Hilmas.Pressureless sintering of carbon nanotube-Al_2O_3 composites[J].Journal of the European Ceramic Society,20106(6):1373-1380. |
| [14] | Iftikhar Ahmad;Hongzhi Cao;Huahui Chen.Carbon nanotube toughened aluminium oxide nanocomposite[J].Journal of the European Ceramic Society,20104(4):865-873. |
| [15] | Mehdi Mazaheri;Daniele Mari;Robert Schaller.Processing of yttria stabilized zirconia reinforced with multi-walled carbon nanotubes with attractive mechanical properties[J].Journal of the European Ceramic Society,201114(14):2691-2698. |
| [16] | V.G. Hadjiev;G.L. Warren;Luyi Sun.Raman microscopy of residual strains in carbon nanotube/epoxy composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,20106(6):1750-1756. |
| [17] | V. G. Hadjiev;M. N. Iliev;S. Arepalli;P. Nikolaev;B. S. Files.Raman scattering test of single-wall carbon nanotube composites[J].Applied physics letters,200121(21):3193-3195. |
| [18] | Seung I. Cha;Kyung T. Kim;Kyong H. Lee.Strengthening and toughening of carbon nanotube reinforced alumina nanocomposite fabricated by molecular level mixing process[J].Scripta materialia,20057(7):793-797. |
| [19] | V.G. Hadjiev;D.C. Lagoudas;E-S. Oh.Buckling instabilities of octadecylamine functionalized carbon nanotubes embedded in epoxy[J].Composites science and technology,20061(1):128-136. |
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