Microwave Synthesis of K2Ti4O9 Whiskers

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Microwave Synthesis of K2Ti4O9 Whiskers

Journal Title: 河南科技大学学报（自然科学版） - Year 2016, Vol 37, Issue 1

Abstract

The microwave heating was applied to synthesize K2Ti4O9 whiskers by using K2CO3 and TiO2powders as raw materials. The phase composition and microstructure of the samples were characterized by X-ray diffraction( XRD) and scanning electron microscope( SEM). The influences of n( K2O) ∶ n( TiO2),microwave heating temperature and holding time on phase and microstructure were investigated. The results show that when the n( K2O) ∶ n( TiO2) is 1∶ 3. 0,K2Ti4O9 whiskers are synthesized by microwave heating at 850 ℃ for15 min. The K2Ti4O9 whiskers have a uniform length from 25 μm to 40 μm with 0.5-1.0 μm in diameter,and the aspect ratio is above 30. Compared with conventional heating,the temperature of the microwave synthesis is decreased by 150 ℃,and the production cycle is greatly shortened.

Authors and Affiliations

Panpan ZHANG, Qian LI, Jinliang HUANG, Lihua LI, Yongjun GU

Keywords

microwave synthesis; K2Ti4O9 whiskers; micro-morphology;

EP ID EP459882
DOI 10.15926/j.cnki.issn1672-6871.2016.01.001
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