R. William McCallum

Adjunct Professor - Iowa State University
Senior Scientist - Ames Laboratory - USDOE
 
Materials Science and Engineering
106 Wilhelm Hall
Iowa State University
Ames, IA  50011-3020
 
Phone:  (515) 294-4736
Fax:  (515) 294-4291
mccallum@ameslab.gov

Selected Publications

  • M. Huang, D. Wu, K.W. Dennis, J.W. Anderegg, R.W. McCallum, and T.A. Lograsso“The Pr-rich portion of the Ni-Pr system,” J. Phase Equilib. Diffusion, Vol. 26 (3), 209 (2005).

  • S.H. Song, D.C. Jiles, J.E. Snyder, A.O. Pecharsky, D. Wu, K.W. Dennis, T.A. Lograsso, and R.W. McCallum “Thermal expansion and Gruneisen parameters in some Pr-Ni-Si compounds,” J. Appl. Phys., Vol. 97 (10, Pt. 1), 10M516-1 (2005).

  • R.W. McCallum “Determination of the saturation magnetization, anisotropy field, mean field interaction, and switching field distribution for nanocrystalline hard magnets,” J. Magn. Magn. Mater., Vol. 292, 135 (2005).

  • W. Tang, K.W. Dennis, Y.Q. Wu, M.J. Kramer, I.E. Anderson, and R.W. McCallum “Studies of new YDy-based R2Fe14B magnets for high temperature performance (R= Y + Dy + Nd),” Ames Laboratory, Iowa State University, Ames, IA, USA, IEEE Trans. Magn., Vol. 40 (4, Pt. 2), 2907 (2004).

  • A.O. Pecharsky, Y. Mozharivskyj, K.W. Dennis, K.A. Gschneidner, Jr., R.W. McCallum, G.J. Miller, and V.K. Pecharsky “Preparation, crystal structure, heat capacity, magnetism, and the magnetocaloric effect of Pr5Ni1.9Si3 and PrNi,” Phys. Rev. B: Condens. Matter Mater. Physics, Vol. 68 (13), 134452/1 (2003).