Fabrication Processes and Properties of Highly Pure MgAlON Materials


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In this paper, the MgAlON ceramic was fabricated by Spark Plasma Sintering (SPS) and hot press sintering respectively. The results showed that highly pure and single-phase MgAlON could be fabricated at lower sintering temperature in a short period through SPS process, compared with the conventional Hot Press sintering (HP) process. The bending strength of MgAlON specimens prepared by SPS process was higher than 500MPa while bending strength of HP specimens was much lower. The open porosity was almost eliminated in SPS MgAlON specimens. Spark Plasma Sintered MgAlON had a single phase of MgAlON while Hot Press Sintered MgAlON had major MgAlON and minor AlN and Al2O3.



Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




Q. Huang et al., "Fabrication Processes and Properties of Highly Pure MgAlON Materials", Materials Science Forum, Vols. 561-565, pp. 543-546, 2007

Online since:

October 2007




[1] C. H. Lange and D. D. Duncan, Temperature Coefficients of the Refractive Index for Candidate Optical Windows [J]. Johns Hopkins APL Tech. Dig., 1993, 14(1): 12-15.

[2] K. Takeda and T. Hosaka, Characteristics of New Raw Material Alon, for Refractories [J]. Interceram. 1989, 38(1): 18-22.

[3] A. Shimpo. H. Ide. and M. Ueki, ALON and Its Composite Ceramics [J]. J. Ceram. Soc. Jpn. 1992, 100(4): 504-508.

[4] L. Yawei, L. Nan and Y. Runzhang., Stabilization of γ-Aluminum Oxynitride (ALON) and Preparation of ALON Bonded Corundum Refractory. pp.407-15.

[5] Chen W, Anselmi-Tamburini U, Garay JE, Groza JR, and Munir ZA: Mat. Sci. Eng. A-Struct. Vol. 394 (2005), p.132 (a) SPS MgAlON (b) HP MgAlON Fig. 4. SEM photographs of MgAlON sintered at 1600°C.