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- 2016
陶瓷添加物对Ti3SiC2基复合材料抗氧化性的影响
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Abstract:
为研究陶瓷添加物对Ti3SiC2基复合材料性能的影响, 首先, 采用反应热压烧结法制备了Ti3SiC2材料及陶瓷添加物含量均为30wt%的SiC/Ti3SiC2、Al2O3/Ti3SiC2和MgAl2O4/Ti3SiC2复合材料。然后, 测试了材料的力学性能和导电性, 在1 373~1 773 K温度范围内对Ti3SiC2 基复合材料的抗氧化性进行了研究, 并对其烧结试样的物相组成和显微结构等进行了表征。结果表明: Ti3SiC2在高温氧化后的主要产物为TiO2和SiO2; 氧化层分为内外2层, 内层由TiO2与SiO2这2相混合组成, 外层为TiO2; 氧化层中存在大量显气孔, 结构较为疏松, 导致抗氧化性较差。与Al2O3/Ti3SiC2和MgAl2O4/Ti3SiC2复合材料相比, SiC/Ti3SiC2复合材料具有更好的抗氧化性。 In order to investigate the effects of ceramic additives on the properties of Ti3SiC2 matrix composites, Ti3SiC2 material as well as SiC/Ti3SiC2, Al2O3/Ti3SiC2 and MgAl2O4/Ti3SiC2 composites whose ceramic additive contents were 30wt% were fabricated by reactived hot pressing sintering method firstly. Then, the mechanical properties and conductivities of the materials were tested, the oxidation resistance of Ti3SiC2 matrix composites was investigated in the temperature range of 1 373-1 773 K, and the phase compositions and microstructures of sintering samples were characterized. The results show that the main products of Ti3SiC2 after high temperature oxidation are TiO2 and SiO2. The oxidation layer can be divided into two layers of inner and outer, the inner layer consists by two-phase mixture of TiO2 and SiO2, and the outer layer is TiO2. A large number of apparent pores exist in oxide layers and the structure is relatively loose, which leads to the poor oxidation resistance. Comparing with Al2O3/Ti3SiC2 and MgAl2O4/Ti3SiC2 composites, SiC/Ti3SiC2 composite has better oxidation resistance. 国家自然科学基金青年基金(51302206)
| [1] | LUO Y M, ZHENG Z M, MEI X N, et al. Growth mechanism of Ti3SiC2 single crystals by in situ react ion of polycarbosilane and metal titanium with CaF2 additive[J]. Journal of Crystal Growth, 2008, 310(14): 3372-3375. |
| [2] | RADOVIC M, BARSOUM M W, EL-RAGHY T, et al. Effect of temperature, strain rate and grain size on the mechanical response of Ti3SiC2 intension[J]. Acta Materialia, 2002, 50(6): 1297-1306. |
| [3] | ZHANG Z F, SUN Z M. Shear fracture behavior of Ti3SiC2 induced by compression at temperatures below 1000 ℃[J]. Materials Science and Engineering: A, 2005, 408(1): 64-71. |
| [4] | 梅炳初, 徐学文, 朱教群, 等. Ti3Si(1- x )Al x C2在900 ℃~1 300 ℃空气中的氧化行为[J]. 稀有金属材料与工程, 2005, 44(6): 895-898. MEI B C, XU X W, ZHU J Q, et al. High-temperature oxidation behavior of Ti3Si(1- x )Al x C2 at 900 ℃~1 300 ℃ in air[J]. Rare Metal Materials and Engineering, 2005, 44(6): 895-898 (in Chinese). |
| [5] | TANG H Y, ZHU D G, LIU B, et al. High temperature oxidation mechanism of Ti3SiC2-64vol% SiC ceramics[J]. Journal of Inorganic Materials, 2009, 24(4): 821-826. |
| [6] | 陈盼军, 尹洪峰, 潘丽青, 等. 热压制备Ti3SiC2/MgAl2O4复合材料及其性能研究[J]. 兵器材料科学与工程, 2011, 34(5): 53-56. CHEN P J, YIN H F, PAN L Q, et al. Properties of Ti3SiC2/MgAl2O4 composites prepared by hot pressing[J]. Ordnance Material Science and Engineering, 2011, 34(5): 53- 56 (in Chinese). |
| [7] | 朱达炎, 朱教群, 梅炳初, 等. Ti3SiC2/TiB2复合材料的制备及其组织和力学性能[J]. 武汉理工大学学报, 2005, 27(12): 1-4. ZHU D Y, ZHU J Q, MEI B C, et al. Fabrication microstructure and mechanical properties of Ti3SiC2/TiB2 composites[J]. Journal of Wuhan University of Technology, 2005, 27(12): 1-4 (in Chinese). |
| [8] | 李良, 周爱国. Ti3SiC2复合材料的研究进展[J]. 硅酸盐通报, 2011, 30(5): 1114-1117. LI L, ZHOU A G. Research progress of Ti3SiC2 composites[J]. Bulletin of the Chinese Ceramic Society, 2011, 30(5): 1114-1117 (in Chinese). |
| [9] | 张联盟, 方青, 沈强. Al2(1- x )Mg x Ti1+ x O5体系固溶体的合成及其热性能研究[J]. 硅酸盐学报, 2002, 30(2): 351-355. ZHANG L M, FANG Q, SHEN Q. Fabrication and thermal performance research of Al2(1- x )Mg x Ti1+ x O5[J]. Journal of the Chinese Ceramic Society, 2002, 30(2): 351-355 (in Chinese). |
| [10] | 李世波, 成来飞, 王东, 等. 层状Ti3SiC2陶瓷的组织结构及力学性能[J]. 复合材料学报, 2002, 19(6): 20-24. LI S B, CHENG L F, WANG D, et al. Microstructure and mechanical properties of Ti3SiC2 ceramics[J]. Acta Materiae Compositae Sinica, 2002, 19(6): 20-24 (in Chinese). |
| [11] | 孙高磊, 尹洪峰, 董留兵, 等. Ti3SiC2/SiC复合材料的抗高温氧化性研究[J]. 硅酸盐通报, 2011, 30(5): 1019-1022. SUN G L, YIN H F, DONG L B, et al. Study on high temperature oxidation resistance of Ti3SiC2/SiC composites[J]. Bulletin of the Chinese Ceramic Society, 2011, 30(5): 1019-1022 (in Chinese). |
| [12] | 崔鸿, 尹洪峰, 袁蝴蝶, 等. Ti3SiC2结合刚玉材料的制备及性能研究[J]. 硅酸盐通报, 2014, 33(2): 328-332. CUI H, YIN H F, YUAN H D, et al. Research on preparation and properties of Ti3SiC2 bonded corundum materials[J]. Bulletin of the Chinese Ceramic Society, 2014, 33(2): 328-332 (in Chinese). |
| [13] | 王红洁, 金志浩, 宫本钦生. Al2O3对Ti3SiC2/Al2O3复合材料性能及显微结构的影响[J]. 稀有金属材料, 2004, 33(1): 40-43. WANG H J, JIN Z H, MIYAMOTO Y. Effect of Al2O3 on the mechanical properties and microstructure of Ti3SiC2/Al2O3 composite[J]. Rare Metal Materials and Engineering 2004, 33(1): 40-43 (in Chinese). |
| [14] | 尹洪峰, 任耘, 范强. 反应热压烧结法制备SiC/Ti3SiC2复合材料及其性能[J]. 复合材料学报, 2011, 28(3): 70-73. YIN H F, REN Y, FAN Q. Fabrication and properties of SiC/Ti3SiC2 composites by reactive hot pressing sintering[J]. Acta Materiae Compositae Sinica, 2011, 28(3): 70-73 (in Chinese). |
| [15] | BARSOUM M W, EL-RAGHY T, OGBUJI L U J T. Oxidation of Ti3SiC2 in air[J]. Journal of the Electrochemical Society, 1997, 144(7): 2508-2516. |
| [16] | LI S B, XIE J X, ZHANG L T. Mechanical properties and oxidation resistance of Ti3SiC2/SiC composite synthesized by in situ displacement reaction of Si and TiC[J]. Materials Letters, 2003, 57(20): 3048-3056. |
| [17] | ZHANG Y, ZHOU Y C, LI Y Y. Solid-liquid synthesis of Ti3SiC2 particulate by fluctuation procedure[J]. Scripta Materialia, 2003, 49(3): 249-253. |
