Mr. Qilin Shuai Profile

Qilin Shuai

at Beijing Normal Univ

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Proceedings Article | 18 March 2021 Paper

The x-ray diffraction focused by ploycapillary optics and its applications

Jun Liu, Jinfa Shao, Qilin Shuai, Rongwu Li, Qiuli Pan, Lin Cheng, Rong Wang

Proceedings Volume 11780, 117800H (2021) https://doi.org/10.1117/12.2589074

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The X-ray diffraction analysis is a nondestructive phase analytical method has been widely used in archaeology, physical chemistry, geoscience and materialogy, etc.. In this study, we developed a type of X-ray diffractometer equipped with slightly-focusing ploycapillary optics and reported some new results of this instrument. By comparing the diffraction peaks of irregular surface of the RMB 5 Jiao coin in our instrument with that of X-Pert Pro MPD (PANalytical, Holland) diffractometer. The results show that our instrument can get the accurate phases but the peaks’ positions of the phases of X-Pert Pro MPD drift largely. Moreover, our instrument measured the color glaze of a piece of ancient porcelain fired in Jizhou kiln. It shows that the 3Al₂O₃·2SiO₂ (PDF 15-0776) and Fe₂O₃ (PDF 25-1402) are the main crystal structures in white glaze, the black glaze is mainly composed of the Fe₃O₄ (PDF 28-0491) and 3Al₂O₃·2SiO₂ and the main phase of body is 3Al₂O₃·2SiO₂ (PDF 15-0776) and quartz (PDF 46-1045). From those results, we can understand that the white glazes are fired in a high temperature about 1250°C while the black glaze is fired in low temperature. That is helpful to understand the firing and coloring process with color glaze of ancient porcelain fired Jizhou kiln. Therefore, it can be concluded that slightly-focusing ploycapillary optics diffractometer has broader application prospects in the analysis of samples with irregular or curving surface.

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