Study on appropriate and modified conditions for flash sintering process by simulation modeling

Document Type : Original Research Article

Authors

1 Department of Metallurgy and Materials Science, Iran University of Science and Technology, Tehran, Iran

2 Niroo Research Institute Iran University of Science and Tecnology

Abstract

Flash sintering is one of the newest techniques for sintering ceramics to near full density. It occurs in an appropriate combination of temperature and electric field. Temperature measurement is one of the most serious challenges in this process. In the present study, we tried to model a flash sintering process of 8YSZ and 3YSZ with finite element method to make an assessment for temperature distribution and also to estimate the critical values of temperature and electric field intensity. Results indicated the correlation between furnace temperature and electric field intensity and also uniformity of current passage through the sample can be observed by simulation modeling.

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References

1. Yu, M., Grasso, S., McKinnon, R., Saunders, T, Reece, M.J., "Review of flash sintering: materials, mechanisms and modelling", Advances in Applied Ceramics, Vol. 116, (2017), 24-60.
2. Cologna, M., Rashkova, B., Raj, R., "Flash Sintering of Nanograin Zirconia in 3. Yoshida, H., Sakka, Y., Yamamoto, T., Lebrun, J.-M., Ra,j R., "Densification behaviour and microstructural development in undoped yttria prepared by flash-sintering", Journal of the European Ceramic Society, Vol. 34, (2014), 991-1000.
4. Nie, J., Zhang, Y., Chan, J. M., Huang, R., Luo, J., "Waterassisted flash sintering: Flashing ZnO at room temperature to achieve ~98% density in seconds", Scripta Materialia, Vol. 142, (2018), 79-82.
5. Du, Y., Stevenson, A.J., Vernat, D., Diaz, M., Marinha, D., "Estimating Joule heating and ionic conductivity during flash sintering of 8YSZ", Journal of the European Ceramic Society, Vol. 36, (2016), 749-59.
6. Xu, X., "31 - Ceramics in solid oxide fuel cells for energy generation", Advances in Ceramic Matrix Composites (Second Edition), Woodhead Publishing, (2018), 763-88.
7. Todd, R.I., Zapata-Solvas, E., Bonilla, R.S., Sneddon, T., Wilshaw, P.R., "Electrical characteristics of flash sintering: thermal runaway of Joule heating", Journal of the European Ceramic Society, Vol. 35, (2015), 1865-77.
8. Downs, J.A., "Mechanisms of Flash Sintering in Cubic Zirconia", University of Trento, (2013).
9. Ji, W., Parker, B., Falco, S., Zhang, J.Y., Fu, Z.Y., Todd, R.I., "Ultra-fast firing: Effect of heating rate on sintering of 3YSZ, with and without an electric field", Journal of the European Ceramic Society, Vol. 37, (2017), 2547-51.
10. Liu, D., Cao, Y., Liu, J., Gao, Y., Wang, Y., "Effect of oxygen partial pressure on temperature for onset of flash sintering 3YSZ", Journal of the European Ceramic Society, Vol. 38, (2018), 817-20.
11. Liu, G., Liu, D., Liu, J., Gao, Y., Wang, Y., "Asymmetric temperature distribution during steady stage of flash sintering dense zirconia", Journal of the European Ceramic Society,
Vol. 38, (2018), 2893-6.
12. Naik, K.S., Sglavo, V.M., Raj, R., "Flash sintering as a nucleation phenomenon and a model thereof", Journal of the European Ceramic Society, Vol. 34, (2014), 4063-7.
13. Raj, R., "Joule heating during flash-sintering", Journal of the
European Ceramic Society, Vol. 32, (2012), 2293-301.
14. Biesuz, M., Dong, J., Fu, S., Liu, Y., Zhang, H., Zhu, D., Hu, C., Grasso, S., "Thermally-insulated flash sintering", Scripta Materialia, Vol. 162, (2019), 99-102.
15. Grasso, S., Sakka, Y., Rendtorff, N., Hu, C., Maizza, G., Borodianska, H., Vasylkiv, O., "Modeling of the Temperature Distribution of Flash Sintered Zirconia", Journal of the Ceramic Society of Japan, Vol. 119, (2011), 144-6.
16. Pereira da Silva, J.G., Lebrun, J.M., Al-Qureshi, H.A., Janssen, R., Raj, R., "Temperature Distributions During Flash Sintering of 8% Yttria-Stabilized Zirconia”, Journal of the American
Ceramic Society, Vol. 98, (2015), 3525-8.
17. Downs, J.A., Sglavo, V.M., "Electric Field Assisted Sintering of Cubic Zirconia at 390°C", Journal of the American Ceramic Society, Vol. 96, (2013), 1342-4.
18. Francis, J.S.C., Raj, R., "Influence of the Field and the Current Limit on Flash Sintering at Isothermal Furnace Temperatures", Journal of the American Ceramic Society, Vol. 96, (2013),
2754-8.

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History

  • Receive Date: 19 June 2019
  • Revise Date: 26 June 2019
  • Accept Date: 01 July 2019

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