Liquid-phase sintering of iron aluminide-bonded ceramics

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Description

Iron aluminide intermetallics exhibit excellent oxidation and sulfidation resistance and are therefore considered as the matrix in metal matrix composites, or the binder in hard metals or cermets. In this paper the authors discuss the processing and properties of liquid-phase sintered iron aluminide-bonded ceramics. It is found that ceramics such as TiB{sub 2}, ZrB{sub 2}, TiC, and WC may all be liquid phase-sintered. nearly complete densification is achieved for ceramic volume fractions ranging up to 60%. Depending on the composition, room temperature three point-bend strengths and fracture toughnesses reaching 1,500 MPa and 30 MPa m{sup 1/2}, respectively, have been found. ... continued below

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8 p.

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Schneibel, J.H. & Carmichael, C.A. December 31, 1995.

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Description

Iron aluminide intermetallics exhibit excellent oxidation and sulfidation resistance and are therefore considered as the matrix in metal matrix composites, or the binder in hard metals or cermets. In this paper the authors discuss the processing and properties of liquid-phase sintered iron aluminide-bonded ceramics. It is found that ceramics such as TiB{sub 2}, ZrB{sub 2}, TiC, and WC may all be liquid phase-sintered. nearly complete densification is achieved for ceramic volume fractions ranging up to 60%. Depending on the composition, room temperature three point-bend strengths and fracture toughnesses reaching 1,500 MPa and 30 MPa m{sup 1/2}, respectively, have been found. Since the processing was carried out in a very simple manner, optimized processing is likely to result in further improvements.

Physical Description

8 p.

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OSTI as DE96005663

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  • International conference on the science, technology and applications of sintering, University Park, PA (United States), 24-27 Sep 1995

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  • Other: DE96005663
  • Report No.: CONF-950958--1
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/201780 | External Link
  • Office of Scientific & Technical Information Report Number: 201780
  • Archival Resource Key: ark:/67531/metadc668363

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Jan. 19, 2016, 7:38 p.m.

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Schneibel, J.H. & Carmichael, C.A. Liquid-phase sintering of iron aluminide-bonded ceramics, report, December 31, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc668363/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.