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Title: “Structural Transformations in Ceramics: Perovskite-like Oxides and Group III, IV, and V Nitrides”

Abstract

1 Overview of Results and their Significance Ceramic perovskite-like oxides with the general formula (A. A0. ...)(B. B0. ...)O3and titanium-based oxides are of great technological interest because of their large piezoelectric and dielectric response characteristics.[1] In doped and nanoengineered forms, titantium dioxide finds increasing application as an organic and hydrolytic photocatalyst. The binary main-group-metal nitride compounds have undergone recent advancements of in-situ heating technology in diamond anvil cells leading to a burst of experimental and theoretical interest. In our DOE proposal, we discussed our unique theoretical approach which applies ab initio electronic calculations in conjunction with systematic group-theoretical analysis of lattice distortions to study two representative phase transitions in ceramic materials: (1) displacive phase transitions in primarily titanium-based perovskite-like oxide ceramics, and (2) reconstructive phase transitions in main-group nitride ceramics. A sub area which we have explored in depth is doped titanium dioxide electrical/optical properties.

Authors:
 [1]
  1. (PI, former Co-PI), Dorian M. Hatch (Co-PI, former PI), and Harold T. Stokes (Co-PI)
Publication Date:
Research Org.:
Brigham Young University
Sponsoring Org.:
USDOE
OSTI Identifier:
909138
Report Number(s):
ER46059-03
TRN: US200722%%837
DOE Contract Number:  
FG02-03ER46059
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; NITRIDES; OXIDES; TITANIUM OXIDES; MORPHOLOGICAL CHANGES; ELECTRONIC STRUCTURE; PHASE TRANSFORMATIONS; ELECTRICAL PROPERTIES; OPTICAL PROPERTIES

Citation Formats

James P. Lewis. “Structural Transformations in Ceramics: Perovskite-like Oxides and Group III, IV, and V Nitrides”. United States: N. p., 2006. Web. doi:10.2172/909138.
James P. Lewis. “Structural Transformations in Ceramics: Perovskite-like Oxides and Group III, IV, and V Nitrides”. United States. doi:10.2172/909138.
James P. Lewis. Sun . "“Structural Transformations in Ceramics: Perovskite-like Oxides and Group III, IV, and V Nitrides”". United States. doi:10.2172/909138. https://www.osti.gov/servlets/purl/909138.
@article{osti_909138,
title = {“Structural Transformations in Ceramics: Perovskite-like Oxides and Group III, IV, and V Nitrides”},
author = {James P. Lewis},
abstractNote = {1 Overview of Results and their Significance Ceramic perovskite-like oxides with the general formula (A. A0. ...)(B. B0. ...)O3and titanium-based oxides are of great technological interest because of their large piezoelectric and dielectric response characteristics.[1] In doped and nanoengineered forms, titantium dioxide finds increasing application as an organic and hydrolytic photocatalyst. The binary main-group-metal nitride compounds have undergone recent advancements of in-situ heating technology in diamond anvil cells leading to a burst of experimental and theoretical interest. In our DOE proposal, we discussed our unique theoretical approach which applies ab initio electronic calculations in conjunction with systematic group-theoretical analysis of lattice distortions to study two representative phase transitions in ceramic materials: (1) displacive phase transitions in primarily titanium-based perovskite-like oxide ceramics, and (2) reconstructive phase transitions in main-group nitride ceramics. A sub area which we have explored in depth is doped titanium dioxide electrical/optical properties.},
doi = {10.2172/909138},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 2006},
month = {Sun Dec 31 00:00:00 EST 2006}
}

Technical Report:

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