Title

Reduced activation energy for grain growth in nanocrystalline yttria-stabilized zirconia

Authors

Authors

S. Shukla; S. Seal; R. Vij;S. Bandyopadhyay

Abbreviated Journal Title

Nano Lett.

Keywords

LOW-TEMPERATURE; CERAMICS; NANOPARTICLES; POWDERS; OXIDE; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

Abstract

Nanocrystalline (similar to15-20 nm) 3 mol % yttria-stabilized zirconia (3YSZ) powder is synthesized via sol-gel technique. A reduced activation energy value of similar to13.0 +/- 0.9 kJ/mol is observed for grain growth in nano-3YSZ powder, within the calcination temperature range of 400-1200 degreesC, which is much lower than that (580 kJ/mol) reported for submicron/micron-sized 3YSZ. This is attributed to large oxygen-ion vacancy concentration in nano-3YSZ.

Journal Title

Nano Letters

Volume

3

Issue/Number

3

Publication Date

1-1-2003

Document Type

Article

Language

English

First Page

397

Last Page

401

WOS Identifier

WOS:000181586600024

ISSN

1530-6984

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