Intermetallic bonded ceramic matrix composites

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Description

A range of carbide and oxide-based cermets have been developed utilizing ductile nickel aluminide (Ni{sub 3}Al) alloy binder phases. Some of these, notably materials based upon tungsten and titanium carbides (WC and TiC respectively), offer potential as alternatives to the cermets which use cobalt binders (i.e. WC/Co). Samples have been prepared by blending commercially available Ni{sub 3}Al alloy powders with the desired ceramic phases, followed by hot-pressing. Alumina (Al{sub 2}O{sub 3}) matrix materials have also been prepared by pressurized molten alloy infiltration. The microstructure, flexure strength and fracture toughness of selected materials are discussed.

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10 p.

Creation Information

Plucknett, K. P.; Tiegs, T. N.; Alexander, K. B.; Becher, P. F.; Schneibel, J. H.; Waters, S. B. et al. July 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 15 times . More information about this report can be viewed below.

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Description

A range of carbide and oxide-based cermets have been developed utilizing ductile nickel aluminide (Ni{sub 3}Al) alloy binder phases. Some of these, notably materials based upon tungsten and titanium carbides (WC and TiC respectively), offer potential as alternatives to the cermets which use cobalt binders (i.e. WC/Co). Samples have been prepared by blending commercially available Ni{sub 3}Al alloy powders with the desired ceramic phases, followed by hot-pressing. Alumina (Al{sub 2}O{sub 3}) matrix materials have also been prepared by pressurized molten alloy infiltration. The microstructure, flexure strength and fracture toughness of selected materials are discussed.

Physical Description

10 p.

Notes

OSTI as DE95014040

Source

  • International symposium on advanced ceramics for structural and tribological applications, Vancouver (Canada), 19-23 Aug 1995

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  • Other: DE95014040
  • Report No.: CONF-950894--1
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/102180 | External Link
  • Office of Scientific & Technical Information Report Number: 102180
  • Archival Resource Key: ark:/67531/metadc624595

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Creation Date

  • July 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • May 2, 2016, 3:53 p.m.

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Plucknett, K. P.; Tiegs, T. N.; Alexander, K. B.; Becher, P. F.; Schneibel, J. H.; Waters, S. B. et al. Intermetallic bonded ceramic matrix composites, report, July 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc624595/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.