The Sintering Process and Mechanism of YAG Pore Gradient Ceramics

Abstract:

Yttrium aluminum garnet is abbreviated as YAG, which has many excellent high temperature characteristics. YAG structural materials and functional materials are promising candidates. In this paper, YAG porous ceramic materials with different mechanical properties are prepared by adjusting the parameters of the sintering process to provide reference for the preparation of high-performance porous ceramics. From the experimental results, the following conclusions can be drawn: when the sintering temperature is 1450°C and the holding time is 2h, the YAG gradient porous ceramics have no deformation and shrinkage, have a regular good shape, and have good strength after sintering. The sintering rate was 8 °C/min and carbon emission temperature is 800°C, the structure of the YAG gradient porous material is good, the pores are uniform, and the strength of the sintered sample is high, The porosity is 25.7%, the compressive strength is 8.12MPa.

• Periodical: Key Engineering Materials (Volume 861)
• Pages: 238-243
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.861.238
• Online since: September 2020
• Authors: Yue Liu, Lin Chen, Jie Guang Song*, Hui Hui Luo, Chen Hui Wei, Chun Yan He, Jia Min Sun, Zhi Qiang Guan
• Keywords: Gradient Porous, Porous Ceramics, Sintering Process, Yttrium Aluminum Garnet

References

[1] J. Kraxner, J. Chovanec, K. Haladejova. Hollow polycrystalline YAG microspheres by flame synthesis [J]. Mater. Lett. 204 (2017) 181-183.

DOI: 10.1016/j.matlet.2017.05.108

[2] S. Hu, C. Lu, X. Liu, Z Xu, Optical temperature sensing based on the luminescence from YAG:Pr transparent ceramics[J], Optic. Mater. 60 (2016) 394-397.

DOI: 10.1016/j.optmat.2016.08.026

[3] H.M. Wang, Z.Y. Huang, J.S. Jiang, Unique mechanical properties of nano-grained YAG transparent ceramics compared with coarse-grained partners[J], Mater. Design. 105 (2016) 9-15.

DOI: 10.1016/j.matdes.2016.04.094

[4] C. Wildfire, E. M. Sabolsky, M. J. Spencer. Solid-state synthesis of YAG powders through microwave coupling of oxide/carbon particulate mixtures[J]. Ceram. Int. 43 (2017) 11455-11462.

DOI: 10.1016/j.ceramint.2017.06.020

[5] A. Jbara, Z. Othaman, A. Ati, M.A. Saeed, Characterization of Al2O3 nanopowders synthesized by co-precipitation method[J], Mater. Chem. Phys. 188 (2017) 24-29.

DOI: 10.1016/j.matchemphys.2016.12.015

[6] V. Amarantov, N.M. Khamaletdinova, R.P Yavetskiy, Colloid chemical properties of binary sols as precursors for YAG optical ceramics[J], Ceram. Int. 42 (2016) 17571-17580.

DOI: 10.1016/j.ceramint.2016.08.071

[7] A. Poulia, P.M. Sakkas, D.G. Kanellopoulou, G. Sourkouni, C. Legros, C. Argirusis, Preparation of metal-ceramic composites by sonochemical synthesis of metallic nano-particles and in-situ decoration on ceramic powders[J], Ultrason. Sonochem. 31 (2016) 417-422.

DOI: 10.1016/j.ultsonch.2016.01.031

[8] Y. Liu, X.Q. Yang, K.L. Peng, J.G. Song, L. Chen, Microstructure and mechanical properties of yttrium aluminum garnet porous ceramics prepared by different sintering process parameters[J], J. Ceram. Process. Res. 20 (2019) 436-441.

[9] C.M. Wu, Y. Yang, H.M. Sun, J.G. Song, L. Chen, M.H. Xu, C.W. Hao. Effect of Molding Processing on Properties of YAG Porous Ceramics via Dry Pressing Molding Method[J], Mater. Sci. Forum. 934 (2018) 134-139.

DOI: 10.4028/www.scientific.net/msf.934.134

[10] J.G. Song, Y. Liu, C.X. Wu, X.Q. Yang. Fabrication and properties of Al2O3-Al cermet materials using different raw material composition parameter[J]. J. Ceram. Process. Res. 21 (2020) 21-25.

DOI: 10.36410/jcpr.2020.21.1.21

[11] M. Ashida, Z. Horita, Effects of ball milling and high-pressure torsion for improving mechanical properties of Al-Al2O3 nanocomposites, J. Mater. Sci. 47 (2012) 7821-7827.

DOI: 10.1007/s10853-012-6679-5

[12] J. Hao, M. Dan, Y.Q. Li, R.J. Liao, G. Chen, Cellulosic particles accumulation and conductivity characteristics of natural ester used in power transformer, Proced. Eng. 202 (2017) 168-175.

DOI: 10.1016/j.proeng.2017.09.704

[13] C. Natthaphon, A.D. Ebner, M. Natenapit, A. James, Ritter Simulation of dynamic magnetic particle capture and accumulation around a ferromagnetic wire, J. Magnet. Magnet. Mater. 428 (2017) 493-505.

DOI: 10.1016/j.jmmm.2016.12.033

[14] W.Y. Ma, B.Y. Wang, J.G. Lin, X.F. Tang, Influence of process parameters on properties of AA6082 in hot forming process, Trans. Nonf. Meta. Soc. Chin. 27 (2017) 2454-2463.

DOI: 10.1016/s1003-6326(17)60272-3

[15] Y. Liu, X.Q. Yang, K.L. Peng. Microstructure and mechanical properties of yttrium aluminum garnet porous ceramics prepared by different sintering process parameters[J]. J. Ceram. Process. Res. 20 (2019) 436-441.