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Search Publications by: Steven P. Mates (Fed)

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Displaying 51 - 60 of 60

NIST Experiments in Gas Atomization 1986-1999

June 1, 2004
Author(s)
Steven P. Mates, Frank S. Biancaniello, S D. Riddle
Research at the National Bureau of Standards (now the National Institute of Standards and Technology or NIST) involving the gas atomization of liquid metals has resuletd in approximately 300 experiments since 1983. The data generated from these experiments

The Effect of Swirl on Gas Velocity Decay in a Generic Annular Close-Coupled Nozzle

December 1, 2003
Author(s)
Steven P. Mates, Frank S. Biancaniello, Stephen D. Ridder
Introducing swirl into the gas flow generated by close-coupled nozzles has long been suggested as a means to improve melt disintegration near the nozzle tip. However, adding swirl may have unintended negative consequences on atomization performance by

Structure and Properties of Consolidated Amorphous Metal Powder

March 1, 2003
Author(s)
Frank S. Biancaniello, Tony Zahrah, Rodney D. Jiggetts, L J. Rowland, Steven P. Mates, Stephen D. Ridder, S Glasmachers
Amorphous metal alloys have been developed with sufficiently slow crystallization kinetics to allow the casting of bulk metallic glass (BMG) components up to several centimeters in cross section. Mechanical characterization of these castings has shown that

An Alternate View of Close-Coupled Gas Atomization of Liquid Metals

January 1, 2002
Author(s)
Steven P. Mates, Frank S. Biancaniello, Stephen D. Ridder
The production of metal powders by close-coupled inert gas atomization is a complex process that has yet to be understood to the degree necessary that nozzle geometry and processing conditions can be chosen easily to adequately control particle size

Abstracts for the MSEL Assessment Panel, March 2001

January 26, 2001
Author(s)
Leslie E. Smith, Alamgir Karim, Leonid A. Bendersky, C Lu, J J. Scott, Ichiro Takeuchi, Kathleen M. Flynn, Vinod K. Tewary, Davor Balzar, G A. Alers, Stephen E. Russek, Charles C. Han, Haonan Wang, William E. Wallace, Daniel A. Fischer, K Efimenko, Wen-Li Wu, Jan Genzer, Joseph C. Woicik, Thomas H. Gnaeupel-Herold, Henry J. Prask, Charles F. Majkrzak, Norman F. Berk, John G. Barker, Charles J. Glinka, Eric K. Lin, Ward L. Johnson, Paul R. Heyliger, David T. Read, R R. Keller, J Blendell, Grady S. White, Lin-Sien H. Lum, Eric J. Cockayne, Igor Levin, C E. Johnson, Maureen E. Williams, Gery R. Stafford, William J. Boettinger, Kil-Won Moon, Daniel Josell, Daniel Wheeler, Thomas P. Moffat, W H. Huber, Lee J. Richter, Clayton S. Yang, Robert D. Shull, R A. Fry, Robert D. McMichael, William F. Egelhoff Jr., Ursula R. Kattner, James A. Warren, Jonathan E. Guyer, Steven P. Mates, Stephen D. Ridder, Frank S. Biancaniello, D Basak, Jon C. Geist, Kalman D. Migler
Abstracts relating to research and development in the NIST Materials Science and Engineering Laboratory (MSEL) are presented for a poster session to be presented to the 2001 MSEL Assessment Panel.

In-Flight Measurement of Thermal Spray Particle Temperatures Using Two-Color Optical Pyrometry

October 11, 2000
Author(s)
Frank S. Biancaniello, Steven P. Mates, Stephen D. Ridder, D Basak, D W. Bonnell, Jon C. Geist
Thermal spray is a materials processing technique used to deposit coatings to provide improved wear, corrosion, and/or thermal protection for engineering components. Thick (>10 {micro}m) thermal spray coatings are made up of individual solidified splats

Compressible Fluid Dynamics in Materials Processing

February 1, 2000
Author(s)
Steven P. Mates
Two widely-utilized materials processing techniques, namely liquid metal atomization and thermal spraying, heavily involve compressible fluid dynamics. In liquid metal atomization, a hot melt stream is disintegrated by a cold supersonic gas jet into small