Cation speciation, compactness, and structure-property correlations in manganese aluminosilicate glasses

So B, Ding Y, Limbach R, Pyo JY, De Macedo GNBM, Li K, Friebe C, Otto F, Schaal M, Liu C, Heo J, Wondraczek L (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Journal of the American Ceramic Society Wiley-Blackwell

Book Volume: 105

Pages Range: 7171-7185

Journal Issue: 12

DOI: 10.1111/jace.18640

Abstract

We report on the elastic properties of xMnO-Al2O3-(6-x)SiO2 manganese aluminosilicate glasses, in which pronounced exchange coupling and antiferromagnetic interaction occurs among the paramagnetic Mn2+ ions. X-ray absorption reveals a Mn-O bond length of ∼2.1 Å, and a distance of ∼3 Å between Mn2+ ions in sixfold coordination, further corroborated by electron paramagnetic resonance and dynamic photoluminescence spectroscopy. This indicates the presence of edge-sharing MnO6 units, in resemblance to edge-sharing MnO8 in the crystalline Spessartine garnet Mn3Al2[SiO4]3. We argue that these cluster species have a profound effect on material stiffness: the compact structure of manganese aluminosilicate glasses enables a Young's modulus in the 100 GPa range and a Poisson's ratio of about 0.3. This exceeds the compositional trend with cation field strength observed for other aluminosilicate glasses.

Authors with CRIS profile

Lothar Wondraczek

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Pohang University of Science and Technology (POSTECH) KR Korea, Republic of (KR) Wuhan University of Technology CN China (CN)

How to cite

APA:

So, B., Ding, Y., Limbach, R., Pyo, J.-Y., De Macedo, G.N.B.M., Li, K.,... Wondraczek, L. (2022). Cation speciation, compactness, and structure-property correlations in manganese aluminosilicate glasses. Journal of the American Ceramic Society, 105(12), 7171-7185. https://doi.org/10.1111/jace.18640

MLA:

So, Byoungjin, et al. "Cation speciation, compactness, and structure-property correlations in manganese aluminosilicate glasses." Journal of the American Ceramic Society 105.12 (2022): 7171-7185.

BibTeX: Download