This paper presents a new method to determine the equivalent oxygen diffusivities of particle dispersed composites. Thismethod can be used to design FGM thermal barrier systems with the function of oxygen barrier. A qualitative explanationof the oxidation of nickel with the increment of zirconia contents in the composite samples can be accepted by this method.The values of equivalent oxygen diffusivities obtained with this method are in excellent agreement with those from the EMTmethod for the composites with Zr02 particle dispersed phase when the volume fractions of dispersed phase are lower than25%.
参考文献
| [1] | W Y Lee;D P Stinton;C C Berndt;F Erdogan,Y D Lee ,Z Mutasim .[J].Journal of the American Ceramic Society,1996,79:3003. |
| [2] | J C Zhu;Z D Yin;Z H Lai .[J].Journal of Materials Science,1996,31:5829. |
| [3] | Z. L. Dong;K. A. Khor;Y. W. Gu .Microstructure formation in plasma-sprayed functionally graded NiCoCrAlY/yttria-stabilized zirconia coatings[J].Surface & Coatings Technology,1999(2/3):181-186. |
| [4] | X H Xiang;J C Zhu;Z D Yin;Z H Lai .[J].Transactions Nonferrous Metals Society of China,1997,7:106. |
| [5] | M I Mendelson;T N McKechnie;L B Spieget .[J].Ceramic Engineering and Science Proceedings,1994,15:555. |
| [6] | C C Lin;A Zhangvil;R Ruh .[J].Acta Materialia,1999,47:1977. |
| [7] | Zeshao CHEN;Jun QIAN;Yihuo YE .[J].中国科学技术大学学报,1992(22):421. |
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%