Gelcasting ceramic defense parts

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Description

The goal of this work was to demonstrate an ability to gelcast and fire a particular defense-related part to net shape and to hold the required tolerances on size and shape with minimal or no post firing machining. The precision required represents a huge increase in the precision currently achievable by standard ceramic processing. The project has produced very promising results. While we did not achieve the degree of precision in as-fired parts that we had targeted ({+-}0.025%), we did improve our ability to hold tolerances to the {+-}0.25 level from our initial level of {+-}2.5 % on parts that ... continued below

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10 p.

Creation Information

Janney, M.A. & Jankiewicz, A.T. October 1, 1997.

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Description

The goal of this work was to demonstrate an ability to gelcast and fire a particular defense-related part to net shape and to hold the required tolerances on size and shape with minimal or no post firing machining. The precision required represents a huge increase in the precision currently achievable by standard ceramic processing. The project has produced very promising results. While we did not achieve the degree of precision in as-fired parts that we had targeted ({+-}0.025%), we did improve our ability to hold tolerances to the {+-}0.25 level from our initial level of {+-}2.5 % on parts that were 5 to 10 inches in diameter. The progress to date makes us believe that the ultimate goal is achievable. We have demonstrated that gelcasting can be a viable precision forming technique for large articles. We are currently working with our industrial partner on a Statement of Work for a follow on project. This will be either a CRADA or a WFO project. The anticipated funding level is one person year in 1997 with funds coming from the industrial partner. Assuming reasonable progress is made in 1997, additional projects of similar size are expected in 1998 and out years funded either by the industrial partner or by DOD.

Physical Description

10 p.

Notes

OSTI as DE98000100

Source

  • Other Information: PBD: [1997]

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  • Other: DE98000100
  • Report No.: ORNL/M--6135
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/539895 | External Link
  • Office of Scientific & Technical Information Report Number: 539895
  • Archival Resource Key: ark:/67531/metadc691815

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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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Creation Date

  • October 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • Jan. 25, 2016, 5:32 p.m.

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Janney, M.A. & Jankiewicz, A.T. Gelcasting ceramic defense parts, report, October 1, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc691815/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.