Shankar M. L. Sastry email: smls@me.wustl.edu Jolley Hall 209 Phone: +1 (314) 935-4869 FAX: +1 (314) 935-4014 Department of Mechanical and Aerospace Engineering Washington University Campus Box 1185 St. Louis, MO 63130-4899

  Shankar M. L. Sastry
  The Catherine M. and Christopher I. Byrnes Professor of Engineering (Joined 1986)

• Ph.D. Metallurgy and Materials Science, University of Toronto, 1974
• M.Eng.Physical Metallurgy, Indian Institute of Science, 1970
• B.Eng.Metallurgy, Indian Institute of Science, 1968
• B.S.Physics and Mathematics, Bangalore University, India, 1965

 Background :

• Visiting Scientist, Air Force Materials Laboratory, Wright-Patterson AFB, 1974-7
• St. Clair Junior College, Dayton, OH (75-6) part time instructor
• Florissant Valley CC, St. Louis, MO, (79-83) part time instructor
• McDonnell-Douglas Research Laboratories, St. Louis, MO, 1977-91

 Research Interests:

• In-situ Composite Solders
  The objective of this program is to develop high strength in-situ composite solders with decreased lead content and increased strength, creep resistance, and fatigue life. Alloy composition modification and rapid solidification processing are being used to produce bimodal distribution (coarse and fine) of stable dispersoids and intermetallic dispersions.
  
  
• Intermetallic Compounds
  The focus of this research program is on enhancing the ductility and toughness of structural alloys based on the ordered intermetallic coompounds TiAl, NiAl, and MoSi, both intrinsically and be composite toughening through the incorporation of a reinforcement phase.
  
  
• Metal-Matrix Composites
  To develop an integrated approach combining innovative low cost manufacturing with ultralight high performance product for the fabrication of high performance structural components. Gas atomization and semi-solid particle depostion are used for the fabrication of high-modulus high-strength metal-matrix composites.
  
  
• Nanocrystalline Materials
  Extending particle and microstructural refinement down the to range of nanometers to produce significant improvemnts in fabricability, strength, ductility, and toughness.

 Graduate Research Associates:

• Byungin Jung

  Recent Publications:

• R.L.Axelbaum, J.I.Huertas, C.R.Lottes, S.Hariprasad, S.M.L.Sastry, "Nanophase Tunsgten and Tungsten-Titanium Compositr via Gas-phase combustion synthesis," Materials and Manufacturing Processes, Dec. 96, 1043-1053.
  
• R.L. Axelbaum, D.P. DuFaux, C.A. Frey, K.F. Kelton, S.A. Lawton, L.J. Rosen, and S.M.L. Sastry, "Gas-phase Combustion Synthesis of Titanium Boride [TiB2] Nanocrystallites," Journal of Materials Research, Vol. 11, No. 4, pp 948-954,1996.
  
• R. Suryanarayanan, C.A. Frey, S.M.L. Sastry, B.E. Waller, S.E. Bates, and W.E. Buhro, "Mechanical Properties of Nanocrystalline Copper Produced from Solution Synthesized Nanoparticles," J. Mater. Res., Vol. 11, No. 2, 439, 1996.
  
• R.L. Axelbaum, D.P. DuFaux, C.A. Frey, and S.M.L. Sastry, "A Flame Process for Synthesis of Unagglomerted, Low-Oxygen Nanoparticles: Application to Ti and TiB2," Metallurgical and Materials Transactions B, Vol. 28B, 1199-1211, 1997.
  
• R. Suryanarayanan, C.A. Frey, S.M.L. Sastry, B.E. Waller, and W.E. Buhro, J., "Deformation, Recovery, and Recrystallization Behavior of Nanocrystalline Copper Produced by Solution Phase Synthesis," Mater. Res., Vol. 11, No. 2, P. 449, 1996.
  
• S.Hariprasad, S.M.L.Sastry and K.L.Jerina , "Undercooling and Supersaturation of alloying elements in rapidly solidified Al-8.5%Fe-1.2%V-1.7%Si alloys," Journal of Materials Science, Vol. 31, pp. 921-925 , 1996.
  
• S.Hariprasad, S.M.L.Sastry and K.L.Jerina, "Deformation Behavior of Rapidly Solidified Fine Grained Al-8.5%Fe-1.2%V-1.7%Si Alloys," Acta Metallurgica, Vol. 44, 1996.
• C. G. Kuo, S. M. L. Sastry, and K. L. Jerina,"Creep-Fatigue Interactions in Eutectic Tin-Led Solder Alloys," ASTM STP Fatigue of Electronic Materials, 1996.

 Additional Contact Information:

Materials Lab (Jolley 103): 935-6017