Magnesium Oxide ( MgO )

Reference: NIST Technical Note

Reference: NIST Structural Ceramics Database

Note: About Property Data Summaries.

Note: Abbreviations and Other Notes

Note: Other Materials


Material Summary:

[Ref. 1,a] [Ref. 1,b] [Ref. 2,3] [Ref. 4] Manufacturer........: Thermal Syndicate Ltd. Eastman Kodak Unknown Norton Material Designation: magnesium oxide magnesium oxide magnesium oxide magnesium oxide Material Form.......: Polycrystal Polycrystal Polycrystal Single Crystal Composition.........: MgO MgO MgO MgO Processing..........: [Ref. 5] Manufacturer........: In laboratory Material Designation: magnesium oxide Material Form.......: polycrystal Composition.........: MgO Processing..........: hot pressed

References:

[1] F. J. P. Clarke, H. G. Tattersall, and G. Tappin, "Toughness of Ceramics and Their Work of Fracture," Proceedings of the British Ceramic Society, Vol. 6, 163-172 (1966). [2] R. W. Rice, S. W. Freiman, and P. F. Becher, "Grain-Size Dependence of Fracture Energy in Ceramics: I, Experiment" Journal of the American Ceramic Society, Vol. 64, No. 6, pp. 345-350 (1981). [3] J. B. Kessler, J. E. Ritter, and R. W. Rice, "The Effects of Microstructure on the Fracture Energy of Hot Pressed MgO" Surface and Interface of Glasses and Ceramics", pp. 529-544 (1974). [4] J. J. Mecholsky, S. W. Freiman, and R. W. Rice, "Fracture Surface Analysis of Ceramics" Journal of Materials Science, 11, pp. 1310-1319 (1976). [5] K. Yasuda, S. D. Kim, Y. Kanemichi, Y. Matsuo, and S. Kimura, "Influence of Grain Size and Temperature On Fracture Toughness of MgO Sintered Bodies," Journal of the Ceramic Society of Japan, Int. Edition, Vol. 98, pp. 44-49 (1990).

Property Table:

Temperature = 23 C Grain Porosity Fracture Fracture Measurement Measurement Comments Size Toughness Energy Method Environment [m] [%] [MPam1/2] [J/m2] ------ -------- ------------ --------- ----------- ----------- -------------------------------- 10 16 WOF air Ref. 1,a 50 19.5 WOF 1,a 100 35 WOF 1,a 7 4.2 WOF 1,b 13 8.9 WOF 1,a 23 16 WOF 1,a 38 17 WOF 1,b 130 14 WOF 1,a 150 7.9 WOF 1,a -------------------------------------------------------------------------------------------------------- 1 6 AMDCB air Ref. 2 10 18 AMDCB 15 14 AMDCB 30 4 AMDCB 75 11 AMDCB -------------------------------------------------------------------------------------------------------- 6 0.95 WOF air Ref. 3; Up to 1.0% porosity 13 0.9 WOF Up to 1.0% porosity 30 22 WOF Up to 1.0% porosity 55 21 WOF Up to 1.0% porosity 95 29 WOF Up to 1.0% porosity 10 11 WOF Less than 0.1% porosity 100 11 WOF Less than 0.1% porosity -------------------------------------------------------------------------------------------------------- 3 AMDCB air Ref. 4; {100} plane; E = 280 GPa -------------------------------------------------------------------------------------------------------- 10 1.8 CNB air Ref. 5 28 1.6 CNB 58 1.3 CNB 90 2.0 CNB 139 1.9 CNB 188 2.0 CNB --------------------------------------------------------------------------------------------------------



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