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The Boron-Carbon System: Quarterly Report Number 3, November 1960 - January 1961

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Abstract: A definitive investigation of the boron-carbon equilibrium system is being made by X-ray diffraction, metallographic, and thermal analytical techniques. On the basis of metallographic and X-ray diffraction studies it is concluded that boron carbide has a range of solubility from approximately 10 to 20 atomic per cent carbon at 1500 degrees to 2000 degrees Celsius. The melting point of the carbide-graphite eutectic has been established as 2325-2350 degrees Celsius. No reversible allotropy of the beta-rhombohedral structure has been observed. The solubility of carbon in boron is very small. The melting point of dilute carbon alloys is found to be … continued below

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[11] p. : ill., table ; 28 cm.

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Elliott, Rodney P. February 6, 1961.

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Abstract: A definitive investigation of the boron-carbon equilibrium system is being made by X-ray diffraction, metallographic, and thermal analytical techniques. On the basis of metallographic and X-ray diffraction studies it is concluded that boron carbide has a range of solubility from approximately 10 to 20 atomic per cent carbon at 1500 degrees to 2000 degrees Celsius. The melting point of the carbide-graphite eutectic has been established as 2325-2350 degrees Celsius. No reversible allotropy of the beta-rhombohedral structure has been observed. The solubility of carbon in boron is very small. The melting point of dilute carbon alloys is found to be essentially the same as that of pure boron (2040 degrees to 2050 degrees). No metallographic evidence of a three-phase reaction of dilute alloys is observed.

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[11] p. : ill., table ; 28 cm.

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Digitized from microopaque cards (1).

"Quarterly Report No. 3."

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  • OCLC: 914239837
  • SuDoc Number: Y 3.AT 7:22/ARF-2200-9
  • Report No.: ARF-2200-9
  • Government Documents No.: AT(11-1)578
  • Archival Resource Key: ark:/67531/metadc502452

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Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

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Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • February 6, 1961

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  • Feb. 12, 2018, 7:42 a.m.

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  • Sept. 19, 2019, 9:04 p.m.

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Thumbnail image of item number 1 in: 'The Boron-Carbon System: Quarterly Report Number 3, November 1960 - January 1961'.
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Elliott, Rodney P. The Boron-Carbon System: Quarterly Report Number 3, November 1960 - January 1961, report, February 6, 1961; Chicago, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc502452/: accessed January 18, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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