研究了以自蔓延准热等静压和热处理工艺制备出的高纯、致密的Ti3SiC2块体材料的高温氧化性能.采用XRD,SEM和EMPA分析了氧化膜表面形貌、组织结构和成分.研究结果表明,在1000℃的空气中,Ti3SiC2陶瓷材料具有优异的抗氧化性能,且恒温氧化行为与循环氧化行为相似.其在120h内的氧化动力学曲线趋近于直线-抛物线规律.随着氧化时间的延长,氧化膜由TiO2和SiO2混合物组成的单层结构逐渐过渡到双层结构.双层结构的内层为固溶了SiO2的TiO2层,而外层为纯金红石相.
参考文献
| [1] | Barsoum MW.;Elraghy T. .SYNTHESIS AND CHARACTERIZATION OF A REMARKABLE CERAMIC - TI3SIC2[J].Journal of the American Ceramic Society,1996(7):1953-1956. |
| [2] | 李世波,成来飞,张立同.新型层状陶瓷材料Ti3SiC2[J].材料导报,2001(09):26-29. |
| [3] | 刘光明,李美栓,周延春,张亚明.Ti3SiC2氧化膜的抗循环氧化行为[J].材料研究学报,2002(03):263-267. |
| [4] | BARSOUM M W;EI-RAGHY T.A progress report on Ti3SiC2,Ti3GeC2,and H-phase,M2BX[J].Journal of Mater Syth Process,1997(05):197-216. |
| [5] | RACAULT C;LANGLASIA F;NASLAIN R .On the chemical vapor desposition of Ti3SiC2 from gas mixture[J].Journal of Materials Science,1994,29:3341-3384. |
| [6] | MERAZHNOV A G .Solid flames:discoveries,conpects,and horizons of cognition[J].Combustion Science and Technology,1994,23(01):27-32. |
| [7] | Dalibor Vojtech;Barbora Bartova;Tomas Kubatik .High temperature oxidation of titanium-silicon alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):50-57. |
| [8] | R.Radhakrishnan;J.J.Williams .Synthesis and high-temperature stability of Ti3SiC2[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1999(1/2):85-88. |
| [9] | Barsoum MW.;Ogbuji LUJT.;Elraghy T. .OXIDATION OF TI3SIC2 IN AIR[J].Journal of the Electrochemical Society,1997(7):2508-2516. |
| [10] | SUN Z;ZHOU Y;LI M .Oxidation behavior of Ti3SiC2-based ceramic at 900～1300℃ in air[J].Corrosion Science,2001,43:1095-1109. |
| [11] | Ke Tang;Chang-an Wang;Yong Huang .Analysis on preferred orientation and purity estimation of Ti_3SiC_2[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2001(1/2):136-141. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%