依据Cr-Al-C三元系热力学数据库,计算了合成Cr2AlC过程中的相平衡关系.基于相平衡关系,以合成温度、保温时间、原料类型及原料配比为变量设计了合理的正交试验,并采用热压方法制备了高单相含量的Cr2AlC材料.通过正交试验参数回归,优化出最佳工艺参数,同时发现原料类型为最敏感参数,采用Cr7C3代替单质Cr,C元素粉末作为原料,有利于获得更高单相含量的Cr2AlC材料.通过体系在不同温度下的反应产物,对合成Cr2AlC化合物过程中的反应路径有了较清晰的认识.
参考文献
| [1] | Wang, JY;Zhou, YC.Recent Progress in Theoretical Prediction, Preparation, and Characterization of Layered Ternary Transition-Metal Carbides[J].Annual review of materials research,2009:415-443. |
| [2] | Z.J. Lin;M.S. Li;J.Y. Wang .High-temperature oxidation and hot corrosion of Cr_2AlC[J].Acta materialia,2007(18):6182-6191. |
| [3] | Chang-Sam Kim;Sung Ik Hwang;Jung-Soo Ha .Synthesis of a Cr2AlC-Ti2AlC ternary carbide[J].Journal of Ceramic Processing Research. (Text in English),2010(1):82-85. |
| [4] | Hajas, D.E.;To Baben, M.;Hallstedt, B.;Iskandar, R.;Mayer, J.;Schneider, J.M. .Oxidation of Cr_2AlC coatings in the temperature range of 1230 to 1410°C[J].Surface & Coatings Technology,2011(4):591-598. |
| [5] | Wang, QM;Renteria, AF;Schroeter, O;Mykhaylonka, R;Leyens, C;Garkas, W;to Baben, M .Fabrication and oxidation behavior of Cr2AlC coating on Ti6242 alloy[J].Surface & Coatings Technology,2010(15):2343-2352. |
| [6] | Z.J. Lin;M.S. Li;J.Y. Wang .High-temperature oxidation and hot corrosion of Cr_2AlC[J].Acta materialia,2007(18):6182-6191. |
| [7] | 陈洋,储茂友,王力军,石志霞,王星明,张碧田.超音速火焰喷涂制备Cr2AlC涂层组织性能研究[J].稀有金属,2012(04):568-573. |
| [8] | 曹松,黄松涛,储茂友,岳强,沈剑韵.Cu-In体系的热力学优化[J].稀有金属,2007(06):807-812. |
| [9] | Yang Chen;MaoyouLi Chu;Lijun Wang;Xinhua Bao;Yang Lin;Jianyun Shen .First-principles study on the structural,phonon, and thermodynamic properties of the ternary carbides in Ti—Al—C system[J].Physica status solidi, A. Applications and materials science ePSS,2011(8):1879-1884. |
| [10] | 王赞海,王星明,储茂友,郭奋,赵鑫,沈剑韵.惰性气体热压法制备W/Ti合金靶材研究[J].稀有金属,2006(05):688-691. |
| [11] | 方沂,李凤泉,贺琼义,陈小润.高速切削最佳工艺参数的选择[J].天津工业大学学报,2006(06):58-60. |
| [12] | 储刚,翟秀静,符岩,毕诗文.X射线衍射多谱峰匹配强度比定量相分析方法[J].分析测试学报,2004(01):48-51. |
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