Oxidation of ZrB2-SiC Composites at 1600 °C: Effect of Carbides, Borides, Silicides, and Chopped Carbon Fiber

Authors

1 Materials engineering, Azad University

2 Islamic Azad University

Abstract

The aim of this work is to optimize the oxidation resistance of ZrB2-SiC-based composites with different additives. Effect of nine factors including SiC, Cf, MoSi2, HfB2 and ZrC contents, milling time of Cf (M.t) and SPS parameters such as temperature, time and pressure on oxidation resistance in four levels was investigated. Taguchi design was applied to explore effective parameters for achieving the highest oxidation resistance. Spark plasma sintering (SPS) was used for sintering. Oxidation resistance tests were carried out on all composites using box furnace at 1600 °C for 1 hr holding time. Then Taguchi design was applied to determine effect of each factor on it. It has been concluded that ZrC by 45% has the most significant the effect on the oxidation resistance and oxidation resistance decreases by ZrC ascent while HfB2 has positive effect on oxidation resistance of ZrB2-based ceramics. Among the SPS parameters, the temperature has the most effect on microstructure and eventually oxidation resistance. Pressure by 2.3% and M.t by 3.4% have the least effect on the oxidation resistance. Other factors such as SiC, Cf, temperature, HfB2, MoSi2 and time have 12.8%, 8.3%, 7.7%, 6.2%, 5.9% and 5.6% on the oxidation resistance respectively. 

Keywords

Main Subjects


1. Shahedi Asl, M., Ghassemi Kakroudi, M., Nayebi, B., Nasiri, H., "Taguchi analysis on the effect of hot pressing parameters on density and hardness of zirconium diboride", International Journal of Refractory Metals and Hard Materials, Vol. 50, (2015), 313-320.

2. George, M.R., "Studies of ultra-high temperature ceramic composite components: synthesis and characterization of HfOxCy and Si oxidation in atomic oxygen containing environments", P.H.D Thesis, Vander Bilt university, (2008).

3. Guo, W.M., Zhang, G.J., "Oxidation resistance and strength retention of ZrB2–SiC ceramics", Journal of the European Ceramic Society, Vol. 30, (2010), 2387-2395.

4. Sarin, P., Driemeyer, P.E., . Haggerty, R.P., Kim, D. K., Bell, J.L., Apostolov, Z.D., Kriven, W.M., "In situ studies of oxidation of ZrB2 and ZrB2–SiC composites at high temperatures", Journal of the European Ceramic Society, Vol. 30, (2010), 2375-2386.

5. Rezaie, A.R., . Fahrenholtz, W.G., Hilmas, G.E., "The effect of a graphite addition on oxidation of ZrB2–SiC in air at 1500 ◦C", Journal of the European Ceramic Society, Vol. 33, (2013), 413-421.

6. Han, J., Hu, P., Zhang, X., Meng, S., Han, W., "Oxidation-resistant ZrB2–SiC composites at 2200 °C", Composites Science and Technology, Vol. 68, (2008), 799-806.

7. Balak, Z., Zakeri, M., Rahimipour, M.R., Salahi, E., "Taguchi design and hardness optimization of ZrB2-based composites reinforced with chopped carbon fiber and different additives and prepared by SPS", Journal of Alloys and Compounds, Vol. 639, (2015), 617-625.

8. Balak, Z., Zakeri, "exural strength of ZrB2-based composites prepared by spark plasma sintering", International Journal of Refractory Metals and Hard Materials, Vol. 55, (2016), 58-67.

9. Balak, Z., Zakeri, M., Rahimipour, M.R., Salahi, E., Kermani, M., "Investigation of Effective Parameters on Densification of ZrB2-SiC Based Composites Using Taguchi Method", ACERP, Vol. 2, No. 2, (2016), 7-15.

10. Monteverde F., "The thermal stability in air of hot-pressed diboride matrix composites for uses at ultra-high temperatures", Corrosion Science, Vol. 47, (2005), 2020-2033.

11. Li, J., Lenosky, T.J., Först, C.J., Yip, S. "Thermochemical and mechanical stabilities of the oxide scale of ZrB2 + SiC and oxygen transport mechanisms", Journal of the American Ceramic Society, Vol. 91, (2008), 1475-1480.

12. Rezaie, A., Fahrenholtz, W.G., Hilmas, G.E., "Oxidation of zirconium diboridesilicon carbide at 1500 ◦C at a low partial pressure of oxygen", Journal of the American Ceramic Society, Vol. 89, (2006), 3240-3245.

13. Monteverde, F., Bellosi, A., "Oxidation of ZrB2-based ceramics in dry air", Journal of the Electrochemical Society, Vol. 150, (2003), 552-559.

14. Rezaie, A., Fahrenholtz, W.G., Hilmas, G.E., "Evolution of structure during the oxidation of zirconium diboride-silicon carbide in air up to 1500 °C", Journal of the European Ceramic Society, Vol. 27, (2007), 2495-2501.

15. Fahrenholtz, W.G., "Thermodynamic analysis of ZrB2–SiC oxidation: formation of a SiC-depleted region", Journal of the American Ceramic Society, Vol. 90, (2007),143-148.

16. Peter, A., Williams, A., Ridwan, S., John, H., Perepezko, P.R., "Oxidation of ZrB2–SiC ultra-high temperature composites over a wide range of SiC content", Journal of the European Ceramic Society, Vol. 32, (2012), 3875-3883.

17. Buckley, J.D., Edie, D.D., "Carbon-Carbon materials and composites", (1993).

18. Wang, Z., Niu, Y., Hu, C., Li, H., Zeng, Zheng, X., Sun, "High temperature oxidation resistance of metal silicide incorporated ZrB2 composite coatings" , Prepared by Vacuum Plasma Spray Ceramics International, Vol. 41, (2015),14868-14875.

19. Mallik, M., Ray, K.K. ,Mitra, R., "Oxidation behavior of hot pressed ZrB2–SiC and HfB2–SiC composites", Journal of the European Ceramic Society, Vol. 31, (2011), 199-215.

20. Guo, W.M.,, Zhou X.J., Zhang, G.J., Kan, Y.M., Li, Y.G, Wang, P.L., "Effect of Si and Zr additions on oxidation resistance of hot-pressed ZrB2–SiC composites with polycarbosilaneasa precursor at 1500°C", Journal of Alloys and Compounds, Vol. 471, (2009), 153-156.

21. Ni, D.W., Zhang, G.J., Xu, F.F., Guo, W.M., "Initial stage of oxidation process and microstructure analysis of HfB2-20 vol% SiC composite at 1500°C", Scripta Materialia, Vol. 64, (2011), 617-620.

22. Liu, H. L., Liu, J.X., Liu, H.T., Zhang, G.J., "Changed oxidation behavior of ZrB2–SiC ceramics with the addition of ZrC", Ceramics International, Vol. 41, (2015), 8247-8251.