Publication Date:
2016-05-24
Description:
A new route for the synthesis of yttrium disilicate (mainly α-Y 2 Si 2 O 7 ) powders was reported as ethylenediaminetetraacetic acid (EDTA)–citric acid (CA) complexing process. The thermal decomposition, phase composition, and microstructure of sample were characterized by thermogravimetry–differential thermal analyses, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and field emission scanning microscopy, respectively. The EDTA–CA complexation mechanism was further discussed, and the selected condition to get nanocrystalline Y 2 Si 2 O 7 powders was the precursor with pH 9.38 and heat treatment at around 1050°C. The prepared powders were well crystallized with average crystalline size ca. 50 nm.
Print ISSN:
1546-542X
Electronic ISSN:
1744-7402
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Permalink