Karren L. More, Ph.D.
Group Leader
Microscopy Group
Oak Ridge National Laboratory
1 Bethel Valley Road
Bldg. 4515, MS 6064
Oak Ridge, Tennessee 37831-6064
(865) 574-7788
(865) 576-5413 FAX


Research Interest:

  • Microstructural characterization of materials using high resolution electron microscopy techniques.
  • Assessing microstructure/performance relationships for ceramics and ceramic matrix composites.
  • Evaluation of thermal barrier coatings and thermally grown oxides on metallic alloys.

Current Research:

  • Principal Investigator for CFCC Program
  • Interface Characterization in CFCCs
  • Principal Investigator for ATS Program
  • Microstructural Characterization of TBCs on metallic alloys and EBCs on ceramics
  • Principal Investigator for Microturbines Program
  • Microstructural Evaluation of Advanced Structural Ceramics and Protective Coatings


  • Ph.D. Materials Science and Engineering - May, 1992 North Carolina State University, Raleigh, NC
  • M.S. Materials Engineering - August, 1985 North Carolina State University, Raleigh, NC
  • B.S. Materials Engineering - May, 1983 North Carolina State University, Raleigh, NC

Professional Affiliations:

  • The American Ceramic Society, 1982
  • The Materials Research Society, 1984
  • The Microscopy Society of America, 1987
  • Society of Automotive Engineers, 1996


  1. K.L. More and P.F. Tortorelli, "Observations of Accelerated Oxidation of SiC at High Water Vapor Pressures," accepted for publication in Journal of the American Ceramic Society (1999).
  2. K.L. More, P.F. Tortorelli, H.T. Lin, E. Lara-Curzio, and R.A. Lowden, "Degradation Mechanisms of BN Interfaces in SiC/SiC Composites in Oxygen- and Water-Containing Environments," in High Temperature Corrosion and Materials Chemistry, 98-9, P.Y. Hou, M.J. McNallen, R. Oltra, E.J. Opila, and D.A. Shores, eds., The Electrochemical Society, Pennington, NJ, p. (1998) 382-94.
  3. L.L. Snead, M.C. Osborne, R.A. Lowden, J. Strizak, R.J. Shinavski, K.L. More, W.S. Eatherly, J. Bailey, and A.M. Williams, "Low Dose Irradiation Performance of SiC/SiC Composites," Journal of Nuclear Materials, 253 (1998) 20-30.
  4. T.S. Moss, W.J. Lackey, and K.L. More, "Chemical Vapor Deposition of B13C2 from BCl3-CH4-H2-Ar Mixtures,"Journal of the American Ceramic Society, 81[12] (1998) 3077-86.
  5. K.L. More, P.F. Tortorelli, M.K. Ferber, L.R. Walker, J.R. Keiser, N. Miriyala, W.D. Brentnall, J.R. Price, "Exposure of Ceramics and Ceramic Matrix Composites in Simulated and Actual Combustor Environments," presented at TurboExpo Ô99, Indianapolis, IN, June 7-10, 1999. Paper #99-GT-292 published by ASME (1999).

    Additional Publications



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