Wang, S., Rani, E., Gyakwaa, F., Singh, H., King, G., Shu, Q., Cao, W., Huttula, M., & Fabritius, T. (2022). Unveiling Non-isothermal Crystallization of CaO–Al2O3–B2O3–Na2O–Li2O–SiO2 Glass via In Situ X-ray Scattering and Raman Spectroscopy. Inorganic Chemistry, 61(18), 7017–7025. https://doi.org/10.1021/acs.inorgchem.2c00387
Unveiling Non-isothermal Crystallization of CaO–Al2O3–B2O3–Na2O–Li2O–SiO2 Glass via In Situ X-ray Scattering and Raman Spectroscopy
|Author:||Wang, Shubo1; Rani, Ekta1; Gyakwaa, Francis2;|
1Nano and Molecular Systems Research Unit, University of Oulu, Oulu FI-90014, Finland
2Process Metallurgy Research Unit, University of Oulu, Oulu FI-90014, Finland
3Canadian Light Source, 44 Innovation Blvd., Saskatoon, Saskatchewan S7N 2V3, Canada
|Online Access:||PDF Full Text (PDF, 2.2 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022122974071
American Chemical Society,
|Publish Date:|| 2022-12-29
The crystallization in glasses is a paradoxical phenomenon and scarcely investigated. This work explores the non-isothermal crystallization of a multicomponent alumino-borosilicate glass via in situ high-energy synchrotron X-ray diffraction, atomic pair distribution function, and Raman spectroscopy. Results depict the crystallization sequence as Ca3Al2O6 and CaSiO4 followed by LiAlO2 with the final compound formation of Ca3B2O6. These precipitations occur in a narrow temperature range and overlap, resulting in a single exothermic peak in the differential scanning calorimetry thermogram. The concurrent nucleation of Ca3Al2O6 and CaSiO4 is intermediated by their corresponding hydrates, which have dominantly short-range order. Moreover, the crystallization of LiAlO2 and Ca3B2O6 is strongly linked with the changes of structural units during the incubation stage in non-isothermal heating. These findings clarify the crystallization of multicomponent glass, which have been inferred from ex situ reports but never evidenced via in situ studies.
|Pages:||7017 - 7025|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
The authors gratefully acknowledge the financial support of Academy of Finland grant #311934. High-energy synchrotron X-ray scattering experiments described in this paper were performed at the Canadian Light Source, a national research facility of the University of Saskatchewan, which is supported by the Canada Foundation for Innovation (CFI), the Natural Sciences and Engineering Research Council (NSERC), the National Research Council (NRC), the Canadian Institutes of Health Research (CIHR), the Government of Saskatchewan, and the University of Saskatchewan.
© 2022 The Authors. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).