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Boron Synthesis, Structure, and Properties pp 140–158Cite as

Vector Hardness Properties of Boron and Aluminum Borides

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Abstract

The results of a detailed investigation on the vector hardness properties of the aluminum—boron system are reported. The experimental method used was that of Knoop-type micro-indentations. Data are presented for the (10.1) plane of boron, the (110), (101), and (221) planes of α-AlB12, the (100–010),† (101–011),† and (201–021)† planes of β -AlB12, the (100) plane of γ-AlB12, the (010), (101), and (111) planes of A1B10, the (00.1) plane of AlB2, and also for polycrystalline aluminum and boron. A1B10 has been found to possess both the greatest magnitude of micro indentation hardness and the greatest anisotropy in the materials studied. A hardness phase diagram, crystallographic and vector azimuth illustrations, and data tables are included.

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References

  1. Kohn, J. A., Gaulé, G. K., and Giardini, A.A., Proc. of Second Army Sci. Confr., (classified) West Point, N.Y. (June 1959).

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Author information

Authors and Affiliations

  1. U.S. Army Signal Research and Development Laboratory, Fort Monmouth, N.J., USA

    A. A. Giardini, J. A. Kohn, L. Toman & D. W. Eckart

Authors
  1. A. A. Giardini
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  2. J. A. Kohn
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  3. L. Toman
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  4. D. W. Eckart
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Editor information

Editors and Affiliations

  1. U.S. Army Signal Research and Development Laboratory, Fort Monmouth, New Jersey, USA

    J. A. Kohn , W. F. Nye  & G. K. Gaulé ,  & 

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© 1960 Springer Science+Business Media New York

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Giardini, A.A., Kohn, J.A., Toman, L., Eckart, D.W. (1960). Vector Hardness Properties of Boron and Aluminum Borides. In: Kohn, J.A., Nye, W.F., Gaulé, G.K. (eds) Boron Synthesis, Structure, and Properties. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6572-1_19

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  • DOI: https://doi.org/10.1007/978-1-4899-6572-1_19

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4899-6265-2

  • Online ISBN: 978-1-4899-6572-1

  • eBook Packages: Springer Book Archive

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