Is Rhenium Diboride a Superhard Material?

@article{Qin2008IsRD,
  title={Is Rhenium Diboride a Superhard Material?},
  author={Jiaqian Qin and Duanwei He and Jianghua Wang and Leiming Fang and Li Lei and Yongjun Li and Juan Hu and Zili Kou and Yan Bi},
  journal={Advanced Materials},
  year={2008},
  volume={20}
}
  • J. QinD. He Yan Bi
  • Published 17 December 2008
  • Materials Science
  • Advanced Materials
Superhard materials are usually composed of light elementssuch as boron, carbon, nitrogen, and oxygen. These lightelemental atoms have the ability to form covalently bonded,three-dimensional networks of high atomic density withextreme resistance to external shear. Most researchers agreeonthedefinitionaccordingtowhich‘‘superhard’’materialsarethosewithVickershardness(Hv)higherthan40GPa 
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159 Citations
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Methods Citations
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159 Citations

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References

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A new superhard material: Osmium diboride OsB2

Response to Comment on "Synthesis of Ultra-Incompressible Superhard Rhenium Diboride at Ambient Pressure"

Dubrovinskaia et al. question our demonstration that rhenium diboride (ReB2) is hard enough to scratch diamond. Here, we provide conclusive evidence of a scratch through atomic force microscopy depth…

OsB2 and RuB2, ultra-incompressible, hard materials: First-principles electronic structure calculations

Comment on "Synthesis of Ultra-Incompressible Superhard Rhenium Diboride at Ambient Pressure"

The synthesis of superhard rhenium diboride (ReB2) at ambient pressure is shown to be not a superhard material, and the prospect for large-scale industrial applications of ReB2 doubtful.

Osmium diboride, an ultra-incompressible, hard material.

In this work, two design parameters are applied to identify ultra-incompressible, superhard materials-high valence electron density and high bond covalency and the first example of such a material is OsB2.

B6O‐Based Composite to Rival Polycrystalline Cubic Boron Nitride

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Synthesis and Design of Superhard Materials

▪ Abstract The synthesis of the two currently used superhard materials, diamond and cubic boron nitride, is briefly described with indications of the factors influencing the quality of the crystals…

Synthesis of superhard cubic BC2N

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Boron suboxide: As hard as cubic boron nitride

The Vickers hardness of boron suboxide single crystals was measured using a diamond indentation method. Under a loading force of 0.98 N, our test gave an average Vickers hardness of 45 GPa. The…

Synthesis of Ultra-Incompressible Superhard Rhenium Diboride at Ambient Pressure

Rhenium diboride (ReB2), synthesized in bulk quantities via arc-melting under ambient pressure, rivals materials produced with high-pressure methods in properties and may find applications in cutting when the formation of carbides prevents the use of traditional materials such as diamond.