Characterization of Silica Sand Due to The Influence of Calcination Temperature

2nd International Conference on Mathematics, Science, Education and Technology

数学;自然科学;教育

Ratnawulan, R.^1 ; Fauzi, A.^1 ; Hayati, A.E.S.^1

Physics Department, Universitas Negeri Padang, Indonesia^1

关键词: Calcination temperature;    Cristobalites;    Crystal size;    Natural silica;    Silica content;    Temperature increase;    Temperature range;    X ray fluorescence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/335/1/012008/pdf
DOI  :  10.1088/1757-899X/335/1/012008

来源: IOP

【 摘 要 】

The characterization of natural silica from Tanah Datar region has been done due to variation of calcination temperature. Characterization is done using X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD). The results of the XRF test show that the content of silica content is 88.957%. Based on XRD test it is found that temperature increase causes structural changes in natural silica. At a temperature of 26 ° C the silica has a quartz phase and in the temperature range of 800 ° C to 1000 ° C there is a new phase, cristobalite. As for the temperature of 1100 °C appears a tridymite phase. Furthermore, the higher the given temperature causes of the crystal size of the crystal be small. In addition to phase and crystal size, there is also a change of lattice parameters.