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Preparation and characterization of phosphate glass–ceramic wasteform with strontium fluoride

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Abstract

Salt wastes containing halides from the molten salt reactor system are unstable during storage. These waste should be immobilized. In this paper, a glass–ceramic wasteform containing SrF2 is prepared from iron phosphate glass and fluorapatite (FAP) ceramic powder by a two-step sintering process. The results of XRD and SEM showed that main crystalline phase in samples is fluorapatite with Sr, and a large number of amorphous phase wrapped around the FAP. The result of product consistency test showed that the glass–ceramic sample has a good leaching resistance for wasteform long-term storage.

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Acknowledgements

This work was supported by “Shanghai Sailing Program” (19YF1458100) of the Shanghai Science and Technology Committee (STCSM) of Chinese, “Strategic Priority Research Program” of the Chinese Academy of Sciences (XD02005003) and “Young Potential Program” of the Shanghai Institute of Applied Physics, Chinese Academy of Sciences (Y955031031).

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Authors and Affiliations

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, People’s Republic of China

    Shun Zhou, Xueyang Liu, Zhenghua Qian, Yanbo Qiao, Bowen Yu, Lin Li, Shuai Wang & Qiang Qin

  2. University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China

    Shun Zhou & Lin Li

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  1. Shun Zhou
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  2. Xueyang Liu
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  3. Zhenghua Qian
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Correspondence to Yanbo Qiao.

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Appendix

Appendix

See Tables 3 and 4.

Table 3 Chemical composition of glass and ceramic samples and the heating temperatures
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Table 4 The composition of glass–ceramic samples at different sintering temperature
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Zhou, S., Liu, X., Qian, Z. et al. Preparation and characterization of phosphate glass–ceramic wasteform with strontium fluoride. J Radioanal Nucl Chem 328, 217–224 (2021). https://doi.org/10.1007/s10967-021-07658-3

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  • DOI: https://doi.org/10.1007/s10967-021-07658-3

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