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Science 27 May 2005:
Vol. 308. no. 5726, pp. 1268 - 1269
DOI: 10.1126/science.1109830
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Perspectives
MATERIALS SCIENCE:
Designing Superhard Materials
Richard B. Kaner, John J. Gilman, Sarah H. Tolbert
In their Perspective, Kaner et al. describe recent efforts to make a material that matches or exceeds the hardness of diamond. Such a material must contain highly directional, short, and strong bonds. Hardness may also be increased by introducing a nanometer-scale structure that hinders the migration of dislocations. Despite all the scientific efforts to find a material that surpasses it, diamond remains the hardest known material. And hardness is not enough: To replace diamond in practical applications, a new superhard material must also match its other properties, such as chemical inertness.
R. B. Kaner is in the Department of Chemistry and Biochemistry and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA. E-mail: kaner{at}chem.ucla.edu J. J. Gilman is in the Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA. E-mail: gilman{at}seas.ucla.edu S. H. Tolbert is in the Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA. E-mail: tolbert{at}chem.ucla.edu
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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Synthesis of Ultra-Incompressible Superhard Rhenium Diboride at Ambient Pressure.
- H.-Y. Chung, M. B. Weinberger, J. B. Levine, A. Kavner, J.-M. Yang, S. H. Tolbert, and R. B. Kaner (2007)
Science
316, 436-439
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