Title

Microstructure and Dielectric Properties of Nanostructured TiO₂ Ceramics Processed by Tape Casting

Alternative Title

Microstructure and dielectric properties of nanostructured TiO2 ceramics processed by tape casting

Abstract

Effects of different solvent systems and dispersant on tape casting slurries of TiO2 nanopowders (∼40nm) were studied by rheological measurements. It was found that Xylene/Ethanol with phosphate ester (PE) as dispersant gave the best dispersion quality which resulted in highly homogenous, dense, smooth and crack-free tapes. The presence of phosphate ester inhibited the sintering of TiO2 powders and refined the grain size. Sintered tapes with 200-300nm grain size and relative density over 90%, had dielectric constant ∼100, dielectric loss less than 1% and dielectric breakdown strength (BDS) over 1000KV/cm.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Nanopowders; Rheological Measurements

Library of Congress Subject Headings

Titanium dioxide

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Ceramic Society, All rights reserved.

This document is currently not available here.


Share

 
COinS