Title

Synthesis, Processing And Characterization Of Nanocrystalline Titanium Dioxide

Keywords

Mechanical properties; Nanopowder; Sol-gel; Synthesis; Titanium dioxide

Abstract

Nanocrystalline titanium dioxide (TiO2) powder was synthesized by using a simple sol-gel technique, which can be easily controlled and reproduced. By hydrolyzing titanium tetraisopropoxide in a mixture of isopropanol and deionized water, TiO2 nanopowder was obtained after calcination at 400 °C. The powder was analyzed for its phases using X-ray diffraction technique and found to be pure anatase. Crystallite size, powder morphology and lattice fringes were determined using high-resolution TEM. DSC and TGA were used to study the thermal properties. As-synthesized powder was uniaxially compacted and sintered at 1300-1600 °C to investigate densification behavior and mechanical properties. Maximum hardness (472 ± 30 HV) and the best sintered density (3.75 g/cm3) were attained in structures sintered at 1600 °C, whereas, the highest compressive strength (364 ± 11 MPa) was achieved in structures sintered at 1500 °C. © 2006 Elsevier B.V. All rights reserved.

Publication Date

11-5-2006

Publication Title

Materials Science and Engineering A

Volume

435-436

Number of Pages

327-332

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.msea.2006.07.062

Socpus ID

33748918337 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33748918337

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