Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Morphological evolution of PbTiO3 microstructures synthesized by topochemical microcrystal conversion

Authors
Na, YonghyeonKwon, JayoonNahm, SahnJeong, Young Hun
Issue Date
7월-2022
Publisher
WILEY
Keywords
lead titanate; microstructure; piezoelectric materials; properties
Citation
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.105, no.7, pp.4751 - 4762
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume
105
Number
7
Start Page
4751
End Page
4762
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/141076
DOI
10.1111/jace.18435
ISSN
0002-7820
Abstract
PbTiO3 (PT) microstructures were fabricated by topochemical microcrystal conversion (TMC) and their morphological evolution was investigated with variation of synthesis temperature and relative molar ratio of reactants. Using molten salt synthesis, Aurivillius phase of PbBi4Ti4O15 (PBiT) synthesized at 1050 degrees C was prepared as precursor. Large plate-like PT microstructures with lengths of hundreds of micrometer were optimally obtained when the relative ratio (x) of (PbCO3)(2)center dot Pb(OH)(2) to PBiT in reactants was 6. In addition, relatively homogeneous PT platelets were achieved at the annealing temperature of 1050 degrees C by TMC; these materials are probably suitable for use in templated grain growth. However, a Pb-deficient secondary phase of PbTi3O7 formed in cases of low x values of less than 4 and low annealing temperatures of less than 1050 degrees C. The porous PT pellets, orthogonally assembled by numerous PT platelets, were achieved by increasing temperature to 1100 degrees C. Further increase in temperature to 1150 degrees C could lead to partial formation of denser PT blocks.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE