Magnesium Oxide ( MgO )

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
[µm]       [%]       [MPa·m1/2]     [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
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  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

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                                     3           AMDCB         air       Ref. 4; {100} plane; E = 280 GPa
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 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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