Process maps for plasma spray: Part 1: Plasma-particle interactions

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This is the first paper of a two part series based on an integrated study carried out at Sandia National Laboratories and the State University of New York at Stony Brook. The aim of the study is to develop a more fundamental understanding of plasma-particle interactions, droplet-substrate interactions, deposit formation dynamics and microstructural development as well as final deposit properties. The purpose is to create models that can be used to link processing to performance. Process maps have been developed for air plasma spray of molybdenum. Experimental work was done to investigate the importance of such spray parameters as gun ... continued below

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9 p.

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GILMORE,DELWYN L.; NEISER JR.,RICHARD A.; WAN,YUEPENG & SAMPATH,SANJAY January 26, 2000.

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

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Description

This is the first paper of a two part series based on an integrated study carried out at Sandia National Laboratories and the State University of New York at Stony Brook. The aim of the study is to develop a more fundamental understanding of plasma-particle interactions, droplet-substrate interactions, deposit formation dynamics and microstructural development as well as final deposit properties. The purpose is to create models that can be used to link processing to performance. Process maps have been developed for air plasma spray of molybdenum. Experimental work was done to investigate the importance of such spray parameters as gun current, auxiliary gas flow, and powder carrier gas flow. In-flight particle diameters, temperatures, and velocities were measured in various areas of the spray plume. Samples were produced for analysis of microstructures and properties. An empirical model was developed, relating the input parameters to the in-flight particle characteristics. Multi-dimensional numerical simulations of the plasma gas flow field and in-flight particles under different operating conditions were also performed. In addition to the parameters which were experimentally investigated, the effect of particle injection velocity was also considered. The simulation results were found to be in good general agreement with the experimental data.

Physical Description

9 p.

Notes

INIS; OSTI as DE00751132

Medium: P; Size: 9 pages

Source

  • International Thermal Spray Conference (ITSC) 2000, Montreal, Quebec (CA), 05/08/2000--05/11/2000

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  • Report No.: SAND2000-0286C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 751132
  • Archival Resource Key: ark:/67531/metadc712088

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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.

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Creation Date

  • January 26, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 9:03 p.m.

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GILMORE,DELWYN L.; NEISER JR.,RICHARD A.; WAN,YUEPENG & SAMPATH,SANJAY. Process maps for plasma spray: Part 1: Plasma-particle interactions, article, January 26, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc712088/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.