MATEC Web Conf.
Volume 114, 20172017 International Conference on Mechanical, Material and Aerospace Engineering (2MAE 2017)
|Number of page(s)||5|
|Section||Chapter 1: Mechanical|
|Published online||10 July 2017|
Effect of System Pressure on the Surface Microstructure of Spherical Porous Basic Magnesium Carbonate
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, People’s Republic of China
a Corresponding author: email@example.com
spherical porous basic magnesium carbonate (Mg5(CO3)4(OH)2.4H2O) has been prepared by using ammonium bicarbonate and magnesium chloride hexahydrate as raw materials. A novel CO2 bubble template was constructed to explain the formation of pore structure of porous Mg5(CO3)4(OH)2.4H2O. System pressure was found to be important in controlling the final pore size of spherical porous Mg5(CO3)4(OH)2.4H2O. By the investigation of the particles from pressure-dependent experiments, scanning electron microscopy observations, X-ray diffraction, and Fourier transform infrared spectra were used to follow the reactions and identify the products. The results show that the pore size of spherical porous Mg5(CO3)4(OH)2.4H2O gradually decreased via increasing system pressure.
© The Authors, published by EDP Sciences, 2017
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