The Synthesis of Nano-Structured TiO₂ Ceramics by Modified Two Step Sintering

Abstract:

The nano-TiO₂ powders with the average particle size of about 40nm were used as starting materials. The compacted powders were firstly performed in Spark-plasma-sintering (SPS) at a high temperature and then sintered in air for hours at a relatively low temperature. The obtained samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed an obvious reduction in grain size was achieved by taking advantage of modified two step sintering (MTSS). The value of the relative grain growth d/do for the samples prepared by MTSS was less than 3.

• Periodical: Key Engineering Materials (Volume 500)
• Pages: 29-33
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.500.29
• Online since: January 2012
• Authors: Bao Rang Li, Xin Ming Xi, Yang Bai
• Keywords: Normal Sintering, SPS, TiO₂, Two Step Sinteirng

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