Bibliographic Citation
Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
---|---|
Title | The pyrochlore-to-perovskite transformation in solution-derived lead zirconate titanate thin films |
Creator/Author | Voigt, J.A. ; Tuttle, B.A. ; Headley, T.J. ; Lamppa, D.L. |
Publication Date | 1995 May 01 |
OSTI Identifier | OSTI ID: 48692 ; DE95010453 |
Report Number(s) | SAND--95-0735C; CONF-941267--1 |
DOE Contract Number | AC04-94AL85000 |
Resource Type | Conference |
Resource Relation | 4. Material Research Society-Ferroelectric thin films conference, Boston, MA (United States), 5-9 Dec 1994 ; PBD:[1995] |
Research Org | Sandia National Labs., Albuquerque, NM (United States) |
Sponsoring Org | USDOE, Washington, DC (United States) |
Subject | 36 MATERIALS SCIENCE ; PZT; PHASE TRANSFORMATIONS; THIN FILMS; MAGNESIUM OXIDES; POROSITY |
Description/Abstract | The authors have characterized the pyrochlore-to-perovskite crystallization process in solution-derived Pb(Zr{sub 0.20}Ti{sub 0.80})O{sub 3} thin films on (100) MgO single crystal substrates. It has been determined that the perovskite phase nucleated preferentially at the film/MgO interface out of a nanocrystalline ({approx}100{angstrom} grains) pyrochlore matrix. During the early stages of the pyrochlore-to-perovskite conversion process, perovskite growth proceeded nearly isotropically from the substrate to form hemispherically shaped grains. Deviations from isotropic growth were shown to result from a growth dependence based on the crystallographic orientation of a growing perovskite grain relative to the orientations of pyrochlore grains being transformed. The volume change that occurs during the pyrochlore-to-perovskite transformation along with two-dimensional grain growth has been used to develop a mechanism for formation of porosity that commonly is concentrated in grain boundary regions. |
Country of Publication | United States |
Language | English |
Format | 7 p. ; PL: |
Availability | OSTI as DE95010453 |
System Entry Date | 2001 May 03 |
Top |