Elastic module of superhard rhenium diboride

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Journal of Physics D: Applied Physics

DOI:https://doi.org/10.1088/0022-3727/42/9/095414· OSTI ID:964355

Koehler, Michael R. ^[1]; Keppens, Veerle ^[1]; Sales, Brian C ^[2]; Jin, Rongying ^[2]; Mandrus, David ^[2]

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1. University of Tennessee, Knoxville (UTK)
2. ORNL

The elastic moduli of polycrystalline rhenium diboride are measured as a function of temperature between 5 and 325 K. The room temperature results show that ReB{sub 2} has very high values for both the bulk and shear modulus, confirming the incompressible and superhard nature of this material. With decreasing temperature, the moduli increase, with a hint of softening below 50 K.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 964355
• Journal Information: Journal of Physics D: Applied Physics, Vol. 42, Issue 9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
RHENIUM BORIDES
ELASTICITY
POLYCRYSTALS
TEMPERATURE DEPENDENCE
HARDNESS