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Fran Laabs
Ames Laboratory-USDOE
Associate Chemist
Amorphous & Aperiodic Focus Area
216 Wilhelm
Tel: 515-294-7904
Fax: 515-294-4291

B.S. 1965, Electrical Engineering, University of Minnesota; M.S 1966, Physics, Mankato State University; Ames Laboratory 1966-present; Founding/charter member of the Electron Probe Analysis Society of America, later to be known as the Microbeam Analysis Society.

Present interests deal with analytical applications of x-ray spectroscopy and electron beam optics/spectroscopy. These encompass studies utilizing scanning, scanning transmission, electron probe, transmission and optical microscopy.

C-T. Lo, N. Balaji, and F.C. Laabs
“Interfacial adhesion mechanisms in incompatible semicrystalline polymer systems,” J. Polym. Sci., Part B: Polym. Phys. manuscript # 04-01-0003, Vol. 42, No. 14, 2667 (2004).

F.C. Laabs and A.M. Russell
“Comparison of OIM and XRD texture determinations in a deformation processed B-Ti+Y metal-metal composites,” Paper 694CD, Pro. Microsc. Microanal. Vol. 8, Suppl. 2 (2002).

J.S. Meyers, L.S. Chumbley, F. Laabs, and A.O. Pecharsky
TEM analysis of Gd sub 5 (Si sub x Ge sub 1-x )4, where x=1/2,” Acta Mater., Vol. 51 (1), p. 61 (2003).

Y. Xu, L.S. Chumbley, G.A. Weigelt, and F.C. Laabs
“Analysis of interdiffusion of Dy, Nd, and Pr in Mg,”
J. Mater. Res., Vol. 16 (11), p. 3287 (2001).

M. Fan, S.W. Sung, R.C. Brown, T.D. Wheelock, and F.C. Laabs
“Synthesis, charcterization and coagulation performance of polymeric ferric sulfate,” J. Environ. Eng. , Vol. 128 (6), p. 483 (2002).

B.A. Cook, I.E. Anderson, J.L. Harringa, R.L. Terpstra, J.C. Foley, O. Unal, and F.C. Laabs
“Shear deformation in Sn-3.5Ag and Sn-3.6Ag-1.0Cu solder joints subjected to asymmetric four-point bend tests,”
Minerals, Metals and Materials Society/AIME, J. Electron. Mater., Vol. 30 (9), p. 1214 (2001).

B.A. Cook, J.L. Harringa, F.C. Laabs, K.W. Dennis, A.M. Russell, and R.W. McCallum
“Diffusion of Fe, Co, Nd, and Dy in R sub 2 (Fe sub 1-x Co sub x ) sub 14 B where R = Nd or Dy,”
J. Magn. Magn. Mater., Vol. 233 (3), L136 (2001).

K.W. Dennis, F.C. Laabs, B.A. Cook, J.L. Harringa, A.M. Russell, and R.W. McCallum, “Observations of multi-phase microstructures in R sub 2 (Fe sub 1-x Co sub x ) sub 14 B where R=Nd or Dy,” J. Magn. Magn. Mater., Vol. 231 (1), L33 (2001).

C.E. Cunningham, C. Petrovic, G. Lapertot, S.L. Bud'ko, F.C. Laabs, W. Straszheim, D.K. Finnemore, and P.C. Canfield
“Synthesis and processing of MgB sub(2) powders and wires,”
Phys. C. Supercond. Appl., Vol. 353 (1-2), p. 5 (2002).

L.Ya. Vinnikov, T.L. Barkov, P.C. Canfield, S.L. Bud’ko, J.E. Ostenson, F.C. Laabs, and V.G. Kogan
“Low-field reorientation transition and anisotropic orientational order of vortex lattices in LuNi 2B 2C,” Phys. Rev. B: Condens. Mater., Vol. 64, 220508(R).

J.D. Verhoeven, F.C. Laabs, A.H. Penray, and W.E. Dauksch
“Microsegregation and banding in hypereutectioid steel: Damascus steel,” ISS Transactions, Iron and Steelmaker, Vol. 25 (11), 65 (1998).

L.S. Chumbley, F.C. Laabs, and M. Smith
“Analysis of explosive damage in metals using orientation imaging microscopy,” (Submitted).

J.C. Foley, W.H. Hunt, Jr., D.J. Barnard, and F.C. Laabs
“Simple powder metallurgy processing of Al-8Fe-4Ce Alloya,”

A.M. Russell, K. Xu, V.B. Gantovnik, Y. Tian, F.C. Laabs, and L.S. Chumbley
“Grain size dependence of ductile-brittle transition temperature in B.C.C. Mg-Li,” Scripta Mater. (Submitted).

A.M. Russell, L.S. Chumbley, F.C. Laabs, and K. Xu
A comparison of strengthening mechanisms in rolled and axissymmetrically deformed Ti-20Y composites,” J. Mater. Sci., Vol. 34, No. 7, 1447 (1999).

A.M. Russell, T. Lund, L.S. Chumbley, F.C. Laabs, L.L. Keehner, and J.L. Harringa
A high-strength, high-conductivity Al-Ti deformation processes metal-metal matrix Ccomposite," Composites Part A, Vol. 30A, No. 3, 239 (1999).

O. Unal, F.C. Laabs, and S.M. Lane
"SiC formation on Si3N4," J. Sci. Mat. letter, Vol. 14, No. 1, 63 (1995).

K. Zu, A.M. Russell, L.S. Chumbley, and F.C. Laabs
"Deformation processed Al-20% Sn in-situ composite," Scripta Mater., Vol. 44, No. 6, 935 (2001).

J.A. Jensen, F.C. Laabs, and L.S. Chumbley
"Microsctructure of heavily deformed magnesium-lithium composites containing steel fibers,"
J. Mater. Eng. Perform., Vol. 7, No. 3, 375 (1998).

R.A. Ribeiro, S.L. Bud'Ko, F.C. Laabs, M.J. Kramer, and P.C. Canfield
"Growth and physical properties of the decagonal Al-Cu-Co quasicrystal grown from the ternary melt," Philos. Mag., Vol. 84, No. 12, 1291 (2004).

J.S. Meyers, L.S. Chumbley, F.C. Laabs, and A.O. Pecharsky
"Determination of phases in as prepared Gd
5(SixGe1-x)4, where X approx. 1/2," Scripta Mater., Vol. 47, No. 8, 509 (2003).

Y. Xu, L.S. Chumbley, G.A. Weigelt, and F.C. Laabs
"Analysis of interdiffusion of Dy, Nd, and Pr in Mg," J. Mater. Res., Vol. 16, No. 11, 3287 (2001).

L.S. Chumbley, Z. Shi, and F.C. Laabs
"Eletron difrations analysis of AB
2-type laves phase for hydrogen batery applications," J. Alloys Cmpd., Vol. 312, No. 1-2, 41, (2000).

Y. Xu, L.S. Chumbley, and F.C. Laabs
"Liquid metal extraction of Nd from NdFeB magnet scrap,"
J. Mater. Res., Vol. 15, No. 11, 2296 (2000).

O. Unal, I.E. Anderson, M. Nosrat, S. Ijadi-Maghsoodi, T.J. Barton, and F.C. Laabs
"Mechanical properties and microstructure of a novel SiC/SiC joint,"
Ceram. Trans., Vol. 77, 185 (1997).

J.S. Meyers, L.S. Chumbley, F.C. Laabs, and A.O. Pecharsky
"TEM analysis of Gd5(SixGe1-x)4, where X=1/2," Acta Mater., Vol. 51, No. 1, 61 (2003).

K. Xu, A.M. Russell. L.S. Chumbley, F.C. Laabs, V.B. Gantovnik, and Y. Tian
"Characterization of strength and microstructures in deformation processes Al-Mg composites," J. Mater. Sci., Vol. 34, No. 24, 5955 (1999).