Synthesis and processing of composites by reactive metal penetration

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Description

Ceramic-metal composites are being developed as engineering materials because of their high stiffness-to-weight ratios, good fracture toughness, and because their electrical and thermal properties can be varied through control of their compositions and microstructures. Wider use of ceramic-metal composites requires improvements in synthesis and processing so that high-performance parts can be produced more economically. Over the past three years reactive metal penetration has been shown to be a promising technique for making ceramic and metal-matrix composites to near-net-shape with control of both composition and microstructure. It appears that reactive metal penetration could be an economical process for manufacturing many of ... continued below

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23 p.

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Loehman, R.E.; Ewsuk, K.G.; Tomsia, A.P. & Fahrenholtz, W.G. July 1, 1996.

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This article 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 14 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Ceramic-metal composites are being developed as engineering materials because of their high stiffness-to-weight ratios, good fracture toughness, and because their electrical and thermal properties can be varied through control of their compositions and microstructures. Wider use of ceramic-metal composites requires improvements in synthesis and processing so that high-performance parts can be produced more economically. Over the past three years reactive metal penetration has been shown to be a promising technique for making ceramic and metal-matrix composites to near-net-shape with control of both composition and microstructure. It appears that reactive metal penetration could be an economical process for manufacturing many of the advanced ceramic composites that are needed for light-weight structural and wear applications for transportation and energy conversion devices. Near-net-shape fabrication of parts has the additional advantage that costly and energy intensive grinding and machining operations are significantly reduced, and the waste generated from such finishing operations is minimized. The goals of this research and development program are: (1) to identify compositions favorable for making composites by reactive metal penetration; (2) to understand the mechanism(s) by which these composites are formed; and (3) to control and optimize the process so that composites and composite coatings can be made economically.

Physical Description

23 p.

Notes

OSTI as DE96011998

Source

  • CE/AIC materials program annual progress report for FY95, Oak Ridge, TN (United States), 24-26 Jun 1996

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  • Other: DE96011998
  • Report No.: SAND--96-1729
  • Report No.: CONF-9606238--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 270787
  • Archival Resource Key: ark:/67531/metadc671418

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 8:50 p.m.

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Loehman, R.E.; Ewsuk, K.G.; Tomsia, A.P. & Fahrenholtz, W.G. Synthesis and processing of composites by reactive metal penetration, article, July 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc671418/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.