Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 3, Issue 39, Pages 10309-10315Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5tc02205c
Keywords
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Funding
- Slovenian Research Agency [P2-0105, P1-0125, BI-US/15-16-60]
- U.S. Department of Energy (DOE) Office of Science User Facility [DE-AC02-06CH11357]
- U.S. National Science Foundation [DMR-1409399]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1409399] Funding Source: National Science Foundation
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This study demonstrates the important effect of processing on the B-site ordering in Pb(Sc0.5Nb0.5)O-3 ceramics. In contradiction to previous observations on ceramics prepared from solid state synthesis powders, which show a distinctive B-site cation ordering when annealed below similar to 1200 degrees C, in mechanochemically derived ceramics sintered 200 degrees C below this temperature, we do not observe such ordering, regardless of the conditions of thermal post-annealing. Accordingly, atomic-scale transmission electron microscopy revealed nanometer-sized B-site ordered regions in mechanochemically derived ceramics contrary to the larger regions extending through the whole grains in solid-state derived ceramics.
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