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Igor Levin, Victor L. Krayzman, Joseph C. Woicik, Terrell A. Vanderah, M. G. Tucker, Thomas Proffen
Reverse Monte Carlo (RMC) refinements of local structure using a simultaneous fit of x-ray/neutron total scattering and EXAFS data were developed to incorporate
The functional responses (e.g. dielectric, magnetic, catalytic, etc) of many industrially-relevant materials are controlled by their local structure a term that
Terrell A. Vanderah, Jorge T. Guzman, Juan C. Nino
Bismuth niobate-based ceramic materials are of interest for embedded elements such as capacitors, resonators, and filters because they exhibit high relative
Terrell A. Vanderah, Robert S. Roth, I E. Grey, W G. Mumme, P Bordet, Juan C. Nino
Ceramic dielectric materials based on complex titanates, niobates, and tantalates are important for a variety of components in communications systems. As part
I E. Grey, Terrell A. Vanderah, W G. Mumme, Robert S. Roth, Jorge T. Guzman, Juan C. Nino, Igor Levin
Ceramic materials which exhibit high relative dielectric permittivities and are processible at temperatures in the 1000 C to 1200 C range are of interest for
M W. Lufaso, W A. Schulze, L Misture, Terrell A. Vanderah
Bi3Fe0.5Nb1.5O9 was synthesized using conventional solid state techniques and its crystal structure refined by the Rietveld method using neutron powder
W G. Mumme, I E. Grey, Robert S. Roth, Terrell A. Vanderah
The crystal structures of the title phases have been determined as part of a general study of the photoelectrochemical activities of niobates and tantalates
Ian E. Grey, W G. Mumme, Terrell A. Vanderah, Robert S. Roth, C Bougerol-Chaillout
New ternary bismuth iron niobates having structures based on chemical twinning of pyrochlore are described. Bi5.67Nb10FeO35 has hexagonal symmetry, P63/mmc, a =
Terrell A. Vanderah, T Siegrist, M W. Lufaso, C Yeager, Juan C. Nino, S Yates, Robert S. Roth
Subsolidus phase relations have been determined for the Bi-Co-Nb-O system in air (750 C to 925 C). Ternary compound formation was limited to pyrochlore (A2B 2O
Terrell A. Vanderah, M W. Lufaso, A U. Adler, Igor Levin, Juan C. Nino, Virgil Provenzano, Peter K. Schenck, Robert S. Roth
Subsolidus phase relations have been determined for the Bi-Mn-Nb-O system in air (750-900 C). Phases containing Mn2+, Mn3+, and Mn4+ were all observed. Ternary
M W. Lufaso, Terrell A. Vanderah, I M. Pazos, Igor Levin, Juan C. Nino, Virgil Provenzano, Peter K. Schenck, Robert S. Roth
Subsolidus phase relations have been determined for the Bi2O3-Fe2O3-Nb2O5 system in air (900-1075 C). Three new ternary phases were observed Bi3Fe0.5Nb1.5O9
Terrell A. Vanderah, M W. Lufaso, A U. Adler, I M. Pazos, S M. Bell
Phase equilibrium studies of the title systems all reveal the formation of non-stoichiometric, displacively disordered pyrochlore phases. Formation of other
Igor Levin, Terrell A. Vanderah, T Amos, James E. Maslar
Structural behavior and phase transitions in the A-cation deficient perovskite-like solid solutions (1-x)LaMg0.5Ti0.5O3-xLa2/3TiO3 (0=x=0.5) were studied using
Terrell A. Vanderah, V L. Miller, Igor Levin, S M. Bell, T Negas
Subsolidus phase equilibria, crystal chemistry, and dielectric behavior were studied for the La2O3 MgO TiO2 system and for the ternary sections LaMg1/2Ti1/2O3