以TiC/Ti/Al为原料,采用热压工艺在1400℃原位合成和烧结了含少量第二相Ti3AlC2的Ti2AlC材料.通过不同温度和不同热压时间下合成试样的XRD分析探讨了Ti2AlC的合成过程.结果表明,高温下Ti与Al反应生成中间相TiAl金属间化合物,然后TiC与TiAl金属间化合物反应生成Ti2AlC.初期反应非常迅速,大部分Ti2AlC在此阶段生成.反应后期反应物减少,速度变慢,同时生成少量第二相Ti3AlC2.不同温度下合成的Ti2AlC颗粒具有不同的形貌特征.
参考文献
| [1] | Michel W.Barsoum .The M_(N+1)AX_N Phases: A new Class of solids; Thermodynamically Stable Nanolaminates[J].Progress in Solid State Chemistry,2000(1/4):201-281. |
| [2] | Michel W. Barsoum;Dmitri Brodkin;Tamer El-Raghy .Layered machinable ceramics for high temperature applications[J].Scripta materialia,1997(5):535-541. |
| [3] | Barsoum M W;Ali M;El - Raghy T .Processing and characterization of Ti2 AlC, Ti2 AlN, and Ti2 AlC0.5 N0.5[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2000,31:1857-1865. |
| [4] | Wang X H;ZHOU Y C .Solid - liquid reaction synthesis and simultaneous densification of polycrystalline Ti2AlC[J].Zeitschrift fur Metallkunde,2002,93:66-71. |
| [5] | Zhou Aiguo;WANG Chang- an;GE Zhenbin et al.Preparation of Ti3 AlC2 and Ti2 AlC by self - propagating high-temperature synthesis[J].Journal of Materials Science Letters,2001,20:1971-1973. |
| [6] | Y.C.Zhou;X.H.Wang .Deformation of polycrystalline Ti_2AlC under compression[J].Materials research innovations,2001(2):87-93. |
| [7] | PIETZKA M A;SCHUSTER J C .Summary of constitutional data on the aluminum - carbon - titanium system[J].Journal of Phase Equilibria,1994,15:392-400. |
| [8] | Khoptiar Y;GOTMAN I .Ti2AlCternarycarbidesynthesizedbythermalexplosion[J].Materials Letters,2002,57(01):72-76. |
| [9] | Ivchenko V I;KOSOLAPOVA T Y .InvestigationofconditionsforobtainingpowdersofternarycompoundsintheTi-Al-Csystem[J].Poroshkovaya Metallurgiya,1975,150:1-4. |
| [10] | 郭俊明,陈克新,葛振斌,周和平,宁晓山.添加TiC对燃烧合成Ti2AlC粉体的影响[J].金属学报,2003(03):315-319. |
| [11] | TOMOSHIGE R;MATSUSHITA T .Productionoftitanium-aluminum-carbideternarycompositeswithdispersedfineTiCparticlesbycombustionsynthesisandtheirmicrostructureobservation[J].Journal of the Ceramic Society of Japan,1996,104(02):94-100. |
| [12] | 孙晓冬,梅炳初,袁润章.TiC-Al体系的燃烧反应合成[J].武汉工业大学学报,1997(01):8-11. |
| [13] | 孙晓冬;梅炳初;袁润章 .Al含量对TiC自蔓延高温合成过程的影响[J].硅酸盐学报,1997,25(05):579-582. |
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