A novel method for synthesizing nano-crystalline MgTiO3 geikielite

Bulletin of materials science

G Parthasarathy¹  S V Manorama² 

[1] National Geophysical Research Institute, Hyderabad 500 007, India$$National Geophysical Research Institute, Hyderabad 500 007, IndiaNational Geophysical Research Institute, Hyderabad 500 007, India$$;Indian Institute of Chemical Technology, Hyderabad 500 007, India$$Indian Institute of Chemical Technology, Hyderabad 500 007, IndiaIndian Institute of Chemical Technology, Hyderabad 500 007, India$$

关键词: Nanomaterials;    mineral;    ceramics;    geikielite;    spectroscopic studies;    Lunar minerals.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

We report here for the first time a novel method of preparing nano-crystalline metatitanate, MgTiO₃ geikielite, with crystalline size varying from 20â€�??40 nm. The preparation has been carried out by coprecipitation method involving titanium hydroxide and magnesium nitrate solution. The samples were characterized by using transmission electron microscopic, powder XRD and FTâ€�?�IR spectroscopic studies. The sample annealed at 900 K for 2 h show ten X-ray diffraction peaks corresponding to the pure geikielite phase. FTâ€�?�IR spectra of the nano-crystalline geikielite exhibit strong broad vibrational bands near 1000, 650 and 470 cm^-1 arising from normal vibrations of the TiO₃ group.

【 授权许可】

Unknown