Applicaltion of X-ray Diffraction and Infrared Spectroscopy Techniques for Revealing Effect Mechanism of Mechanical Grinding on the Morphology and Crystalline Structure of Talc

REN Ye-ye; ZHANG Jian; YAN Jun; LIN Jian; CHEN Si-hang; SHENG Jia-wei

doi:10.15898/j.cnki.11-2131/td.2015.02.005

2015 Vol. 34, No. 2

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Article navigation > Rock and Mineral Analysis > 2015 > 34(2): 181-186

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REN Ye-ye, ZHANG Jian, YAN Jun, LIN Jian, CHEN Si-hang, SHENG Jia-wei. Applicaltion of X-ray Diffraction and Infrared Spectroscopy Techniques for Revealing Effect Mechanism of Mechanical Grinding on the Morphology and Crystalline Structure of Talc[J]. Rock and Mineral Analysis, 2015, 34(2): 181-186. doi: 10.15898/j.cnki.11-2131/td.2015.02.005

Citation:

REN Ye-ye, ZHANG Jian, YAN Jun, LIN Jian, CHEN Si-hang, SHENG Jia-wei. Applicaltion of X-ray Diffraction and Infrared Spectroscopy Techniques for Revealing Effect Mechanism of Mechanical Grinding on the Morphology and Crystalline Structure of Talc[J]. Rock and Mineral Analysis, 2015, 34(2): 181-186. doi: 10.15898/j.cnki.11-2131/td.2015.02.005

Applicaltion of X-ray Diffraction and Infrared Spectroscopy Techniques for Revealing Effect Mechanism of Mechanical Grinding on the Morphology and Crystalline Structure of Talc

1.
College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
2.
Zhejiang Institute of Quality Inspection Science, Hangzhou 310014, China

More Information

Corresponding author: SHENG Jia-wei, 79583526@qq.com

Received Date: 18 September 2014

Revised Date: 17 February 2015

Accepted Date: 04 March 2015

Publish Date: 25 February 2015

Abstract

Abstract

The particle size, morphology and crystal type of talc have important effects on its effective application and the function of the end products. Current study of talc focuses mainly on the surface modification, but there are few studies on their morphology and crystalline structure. The changes of morphology and crystalline structure of talc from Liaoning induced by strong mechanic grinding were investigated using X-ray Fluorescence Spectrometry (XRF), X-ray Diffraction (XRD), Infrared Spectroscopy, Particle Size Analyzer and Field Emission Scanning Microscopy (FE-SEM). The results show that the MgO/SiO₂ molar ratio is 0.45, which is lower than the calculated value (0.75) for ideal talc. The crystalline structure has been destroyed after prolonged grinding. Namely, the structure of talc is changed from a crystalline state into an amorphous state after grinding. With the increase of grinding time, the particle size repeats diminution, enlargement, diminution processes. The morphology of powder was changed after grinding, which gradually changed to be a torispherical shape, and then had a refinement-reunion-refinement process. The conclusion of the circulation change has an important guiding significance and reference value for the further processing and application of talc and the study of related mineral powders.
- talc powder /
- grinding /
- reunion /
- quasisphere /
- X-ray Fluorescence Spectrometry (XRF) /
- X-ray Diffraction (XRD) /
- Infrared Spectroscopy /
- Particle Size Analyzer /
- Field Emission Scanning Microscopy (FE-SEM)

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