Position:

Research Staff Member 

Education Discipline:

Materials Science 

Broad Fields of Endeavor: 

Diffraction techniques, crystal structure, and phase equilibria and crystal chemistry 

Education: 

• Ph.D., Materials Science and Engineering, University of Arizona
• M.Sc., Chemistry, George Mason University
• B.Sc., Materials Engineering, Virginia Polytechnic Institute and State University 

Societies and Professional Activities: 

• Neutron Scattering Society of America
• American Ceramic Society
• International Center for Diffraction Data

Scope of Research:

• Constructed phase diagrams for functional ceramic systems by means of neutron and x-ray powder diffraction 
• Single crystal growth and solid state synthesis of powder samples of the Ba_6-3xLn_8+2xTi₁₈O₅₄ (Ln = La, Pr, Nd, Sm, Eu, and Gd) solid solution.  Performed single crystal x-ray diffraction and powder (Rietveld) structural refinements and related structural elements (e.g., polyhedral tilting) to properties.

Recent User/Fellowship Projects:

• High Temperature X-ray Characterization of Ti₄AlN₃, Ti₃SiC₂ and Ti₂AlC (Drexel University) 
• High Temperature X-ray Diffraction Studies of Crystallite Size Effects in Ferroelectric Powders (Rutgers University) 

Publications - List of Staff Member's Publications  (PDF)

Contact:

Claudia J. Rawn 
Metals and Ceramics Division
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6064
Phone: (865) 574-3184
Fax: (865) 574-3940
E-mail: rawncj@ornl.gov