采用氨解渗氮法和熔盐渗硅法在钼基体上制备了钼-硅-氮涂层,利用SEM、XRD研究了涂层的微观结构、元素分布及物相组成,并分析了其在1 600℃的抗高温氧化性能。结果表明：钼基体上的钼-硅-氮涂层由MoSi2和Si3N4相组成,高温氧化时表面可形成致密的SiO2膜,在1 600℃循环氧化寿命达48h。
Mo-Si-N coating was prepared on Mo substrate by aminolysis nitriding and salt ihrigizing molten methods.The microstructure,elemental distribution and phase were studied by scanning electron microscopy and X-ray diffraction,and the high-temperature oxidation resistance of the coating at 1 600 ℃ was analyzed.The results show that Mo-Si-N coating prepared on Mo substrate consisted of MoSi2 and Si3N4 phases,compact SiO2 film was formed on coating surface when the coating was oxidized at high temperature,and high temperature cyclic oxidation life of the coating was 48 h.
参考文献
| [1] | Suzuki R.O.;Ishikawa M. .MoSi_2 coating on molybdenum using molten salt[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):285-291. |
| [2] | 来忠红,朱景川,全在昊,尹钟大.C/C复合材料Mo-Si-N抗氧化涂层的制备[J].稀有金属材料与工程,2005(11):1794-1797. |
| [3] | David Kisailus;Joon Hwan Choi;F.F. Lange .GaN nanocrystals from oxygen and nitrogen-based precursors[J].Journal of Crystal Growth,2003(1/2):106-120. |
| [4] | Jin-Kook Yoon;Gyeung-Ho Kim;Ji-Young Byun;Jong-Kwon Lee;Jae-Soo Kim;Jae-Soo Kim .Formation of MoSi_2-Si_3N_4 composite coating by reactive diffusion of Si on Mo substrate pretreated by ammonia nitridation[J].Scripta materialia,2002(4):249-253. |
| [5] | Jin-Kook Yoon;Jong-Kwon Lee;Kyung-Hwan Lee .Microstructure and growth kinetics of the Mo_5Si_3 and Mo_3Si layers in MoSi_2/Mo diffusion couple[J].Intermetallics,2003(7):687-696. |
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%