Preparation of Fluorophlogopite Glass-ceramic Powder by Sol-gel Method
Journal Title: 河南科技大学学报（自然科学版） - Year 2017, Vol 38, Issue 5
Abstract
Taking Mg ( NO3) _2·6H2O, Al ( NO3) _3·9H2O, NH4 F, NaF, CO ( NH2) _2and silica sol as raw materials, the powder of fluorophlogopite ( NaMg3AlSi3O10F2) was prepared by sol-gel method. The effects of the heat treatment temperature on the crystal phase composition and crystal growth of fluorophlogopite powder were investigated by using X-Ray diffraction ( XRD) , differential thermal analysis/thermogravimetric ( DTA/TG) , field emission scanning electron microscope ( FESEM) and transmission electron microscope ( TEM) . The results show that the crystal phase composition of the synthetic powders has characteristic of glass ceramic. The particle size is 30 nm. After heat-treated, the proportion of crystal increases significally, and the morphology is larger lamellars. The fluorophlogopite phase starts crystallization obviously at 500 ℃. With temperature increasing, the crystallization rate of fluorophlogopite improve greatly, and the impure phases are also reduced obviously.
Authors and Affiliations
Zhi LU, Guangxin WANG
Keywords
Related Articles
- EP ID EP478117
- DOI -
- Views 83
- Downloads 0
Surface Structure and Photocatalytic Activity of BiO Cl Modulated by Hydroxyl
BiOCl/Bi2O3 composites were synthesized by the treatment of BiOCl with NaOH solution and its photocatalytic properties were studied. The samples were characterized by X-ray diffraction ( XRD) , scanning electron microsco...
Design of Magnetic Field Probe for Antenna Near-field Test
A magnetic field probe was designed for the antenna near-field test in the form of coplanar waveguide. An electromagnetic simulation model was established to calculate S21 and S11 parameters of the probe,and the probe ha...
Application of Aluminum Alloy Template Technology to Structure of Assembling Integral Shear Wall
Taking the application of aluminum alloy template technology to the assembly integrated shear wall structure project of Haijian Group as an example, the key technologies of pre-design as well as the difficulties and coun...
Experimental Study on Cleaning Device of Peanut Pods
The peanut pods cleaning device was mainly composed of collecting light impurities device and separating stems device.The former used the cross-flow fan to remove light impurities from the peanut mixture by inhaling, and...
Stress Model Test of Anti-Sliding Micropile Groups
The model test was carried out to analyze the stress performance of anti-sliding micropile groups and the function of connecting beam. The results shows that the maximum shearing force of the piles occurs around the slip...