THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963

Title: THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963

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Abstract

In sintering powder aggregates and compacts, externally applied forces play a large role in addition to the action of surface tension forces. The mass transport mechanism for sintering was shown to be due to dislocation motion rather than to diffusional processes. In order to differentiate between dislocation motion and volume diffusion as the mass transport mechanism during the sintering of copper powder compacts at high temperature, their isothermal rate of shrinkage was measured in a dilotometer. Results indicate that even at temperature in the range 50 to 100 nif- C below the melting point of copper, the mass transport mechanism for sintering of copper powder compacts is dislocation motion and not volume diffusion. (H G.G.)

Authors:: Lenel, F V

Publication Date:: 1963-03-01

Research Org.:: Rensselaer Polytechnic Inst., Troy, N.Y.

OSTI Identifier:: 4740257

Report Number(s):: TID-18324

NSA Number:: NSA-17-018719

DOE Contract Number:: AT(30-1)-2408

Resource Type:: Technical Report

Resource Relation:: Other Information: Orig. Receipt Date: 31-DEC-63

Country of Publication:: United States

Language:: English

Subject:: METALS, CERAMICS, AND OTHER MATERIALS; COMPACTING; COPPER; DEFECTS; DIFFUSION; DISLOCATIONS; EXPANSION; INSTRUMENTS; MASS; MEASURED VALUES; MELTING POINTS; MOTION; POWDERS; SINTERING; SURFACES; TEMPERATURE; VOLUME

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                    Lenel, F V. THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963.  United States: N. p., 1963. 
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                    Lenel, F V. THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963.  United States.

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                    Lenel, F V. Fri .  
        "THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963".  United States.

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@article{osti_4740257,

  title        = {THE COMPARISON OF SINTERING LOOSE METAL POWDERS AND PRESSED METAL POWDER COMPACTS. Progress Report, March 1, 1962-February 28, 1963},

  author       = {Lenel, F V},

  abstractNote = {In sintering powder aggregates and compacts, externally applied forces play a large role in addition to the action of surface tension forces. The mass transport mechanism for sintering was shown to be due to dislocation motion rather than to diffusional processes. In order to differentiate between dislocation motion and volume diffusion as the mass transport mechanism during the sintering of copper powder compacts at high temperature, their isothermal rate of shrinkage was measured in a dilotometer. Results indicate that even at temperature in the range 50 to 100 nif- C below the melting point of copper, the mass transport mechanism for sintering of copper powder compacts is dislocation motion and not volume diffusion. (H G.G.)},

  doi          = {},

  url          = {https://www.osti.gov/biblio/4740257},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1963},

  month        = {3}

}

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