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Search Publications by: Ron B. Goldfarb (Fed)

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Displaying 26 - 50 of 164

Measurement of Hydrogen in Metal Alloys by Magnetic and Electronic Techniques

January 1, 2004
Author(s)
P. Termsuksawad, S. Niyomsoan, Ronald B. Goldfarb, V I. Kaydanov, David Olson, B. Mishra, Z Gavra
As demonstrated in this paper, magnetic and electronic measurements can be used to quantify hydrogen availability, absorption, and desorption in materials for nickel metal-hydride batteries and hydrogen storage. The ability of a metal alloy to absorb and

Magnetic Technology Division: Programs, Activities, and Accomplishments

December 31, 2002
Author(s)
Ronald B. Goldfarb
The Magnetic Technology Division develops and disseminates measurement technology for industries broadly concerned with magnetic information storage and superconductor power. The division is located in Boulder, Colorado, part of the Electronics and

Advances in Weld Hydrogen Sensors

June 1, 2002
Author(s)
David Olson, B. Mishra, R D. Smith, S. Niyomsoan, P. Termsuksawad, Y D. Park, V I. Kaydanov, Z Gavra, Ronald B. Goldfarb
Through the application of modern physics concepts, advanced hydrogen sensors are being developed for rapid determination of weld hydrogen content and distribution. Electronic, optical, and magnetic property measurements have demonstrated the ability to

Multifilmamentary Nb 3 Sn wires reacted in hydrogen gas

May 1, 2002
Author(s)
M Takayasu, R G. Ballinger, Ronald B. Goldfarb, A. A. Squitieri, P. J. Lee, David C. Larbalestier
Reaction of Nb 3Sn wires in an Icology 908 conduit in the presence of oxygen can decrease the conduit's fracture toughness. This may be avoided by reacting in a reducing atmosphere of 5% hydrogen-95% argon. The effects of the hydrogen reaction on the

Exchange bias and anisotropy in the Fe/KCoF 3 structure

February 1, 2002
Author(s)
Leszek Malkinski, Nicholas Cramer, Andrew Hutchinson, Robert E. Camley, Zbigniew J. Celinski, Danuta Skrzypek, Ronald B. Goldfarb
A new type of ferromagnet/antiferromagnet structure (fe/KCoF 3) was deposited by molecular beam epitaxy. Unidirectional and uniaxial anisotropies of 5.1 and 3.4 kA/m were measured at 23 K using ferromagnetic resonance. Magnetization measurements at 5 K

Magnetic Technology Division: Programs, Activities, and Accomplishments

December 31, 2001
Author(s)
Ronald B. Goldfarb
The Magnetic Technology Division develops and disseminates unique measurement technology for industries concerned with magnetic information storage and superconductor power. The division's projects are led by senior scientists, often assisted by engineers

Suppression of Flux Jumps in Marginally Stable Niobium-Tin Superconductors

March 1, 2001
Author(s)
Ronald B. Goldfarb, Loren F. Goodrich, T Pyon, E. A. Gregory
Niobium-tin superconductor wires with coalesced filaments may have reduced adiabatic stability. Magnetization measurements on such marginally stable conductors exhibit flux jumps, which appear as a sudden decrease in magnetization as the applied field is

Ralaxometry and Magnetometry of Ferritin

December 1, 1998
Author(s)
R A. Brooks, J Vymazal, Ronald B. Goldfarb, J W. Bulte, P Aisen
By combining nuclear magnetic ralaxometry on 39 ferritin samples with different iron loading with magnetometry, results were obtained that suggest a new interpretation of the core structure and magnetic properties of ferritin. These studies provide