Boron Carbide ( B₄C )

Reference: NIST Structural Ceramics Database

Note: About Property Data Summaries.

Note: Abbreviations and Other Notes

Note: Other Materials

Material Summary:
                      [Ref. 1]        [Ref. 2]        [Ref. 3]        [Ref. 4]        [Ref. 5]
Manufacturer........: Norton Co.      ESK             laboratory      laboratory      laboratory
Material Designation: boron carbide   boron carbide   boron carbide   boron carbide   boron carbide
Material Form.......: polycrystal     polycrystal     polycrystal     polycrystal     polycrystal
Composition.........: B4C             B4C              B4C             B4C             B4C
Processing..........:                 hot pressed     hot pressed     hot pressed     hot pressed

                      [Ref. 6]
Manufacturer........: Ceradyne
Material Designation: boron carbide
Material Form.......: polycrystal
Composition.........: B4C
Processing..........: hot pressed



References:
   [1] J. J. Mecholsky, S. W. Freiman, and R. W. Rice, "Fracture Surface Analysis of Ceramics"
       Journal of Materials Science, Vol. 11, pp. 1310-1319 (1976).
   [2] G. De With, "High Temperature Fracture of Boron Carbide:  Experiments and Simple
       Theoretical Models," Journal of Materials Science, Vol. 19, pp. 457-466 (1984).
   [3] G.A. Gogotsi, Y.L. Groushevsky, O.B. Dashevskaya, Y.G. Gogotsi, and V.A. Lavrenko,
       "Complex Investigation of Hot-Pressed Boron Carbide," Journal of the Less-Common Metals,
       Vol. 117, pp. 225-230 (1986).
   [4] G.W. Hollenberg and G. Walther, "The Elastic Modulus and Fracture of Boron Carbide,"
       Journal of the American Ceramic Society, Vol. 63, pp. 610-613 (1980).
   [5] W. F. Du and T. Watanabe, "High-Toughness B4C-AlB12 Composites Prepared by Al Infiltration,"
       Journal of the European Ceramic Society, Vol. 17, pp. 879-884 (1997).
   [6] R. J. Gettings and G. D. Quinn, "Surface Crack in Flexure (SCF) Measurements of the
       Fracture Toughness of Advanced Ceramics," Ceramic Engineering and Science Proceedings,
       Vol. 16, pp. 539-544 (1995)



Property Table:
Temperature = 23 °C

Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  ----------------------------
  20                                15           AMDCB         air       Ref. 1; E = 450 GPa
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                         3.7        11.8         SENB          air       Ref. 2
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                         3.2                     SENB          air       Ref. 3
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 [2-7]       8           1.8         4.6         DT            air       Ref. 4
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                         4.2                     ICS           air       Ref. 5
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                         3.08                    SCF           air       Ref. 6; E = 455 GPa,
                                                                                 density = 2.48 g/cm3
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