TY - JOUR
T1 - Structural Role of Alkali Cations in Calcium Aluminosilicate Glasses as Examined Using Oxygen-17 Solid-State Nuclear Magnetic Resonance Spectroscopy
AU - Sukenaga, Sohei
AU - Kanehashi, Koji
AU - Shibata, Hiroyuki
AU - Saito, Noritaka
AU - Nakashima, Kunihiko
N1 - Funding Information:
The authors (H.S., K.N., N.S., and S.S.) are grateful for the financial support from the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”, IMRAM Tohoku University. This work was financially supported in part by a Grant-in-Aid for Scientific Research (C) Grant (No. 25420792) from the Japan Society for the Promotion of Science (JSPS) and research fund by IMRAM, Tohoku University. The authors would like to acknowledge and thank Dr. Takafumi Takahashi and Mr. Tatsuya Nishiura (Nippon Steel & Sumitomo Metal Corporation) for technical support in NMR measurements.
Publisher Copyright:
© 2016, The Minerals, Metals & Materials Society and ASM International.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - The structural roles of alkali and calcium cations are important for understanding the physical and chemical properties of aluminosilicate melts and glasses. Recently, oxygen-17 nuclear magnetic resonance (17O NMR) studies of calcium–sodium aluminosilicate glasses showed that these structural roles are not randomly given, but rather each cation has its own preferential role. However, the relationship between cation type and role preference in calcium aluminosilicate glass is not completely understood. In the present study, the structural roles of lithium, sodium, and potassium cations in selected calcium aluminosilicate glasses are investigated using 17O solid-state NMR experiments. Data from these experiments clearly show that potassium cations have a notably stronger tendency to act as charge compensators within the network structure, compared to sodium and lithium cations. The result of 17O NMR experiment also showed that sodium and lithium cations in part act as network modifier alongside with calcium cations.
AB - The structural roles of alkali and calcium cations are important for understanding the physical and chemical properties of aluminosilicate melts and glasses. Recently, oxygen-17 nuclear magnetic resonance (17O NMR) studies of calcium–sodium aluminosilicate glasses showed that these structural roles are not randomly given, but rather each cation has its own preferential role. However, the relationship between cation type and role preference in calcium aluminosilicate glass is not completely understood. In the present study, the structural roles of lithium, sodium, and potassium cations in selected calcium aluminosilicate glasses are investigated using 17O solid-state NMR experiments. Data from these experiments clearly show that potassium cations have a notably stronger tendency to act as charge compensators within the network structure, compared to sodium and lithium cations. The result of 17O NMR experiment also showed that sodium and lithium cations in part act as network modifier alongside with calcium cations.
UR - http://www.scopus.com/inward/record.url?scp=84965029374&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84965029374&partnerID=8YFLogxK
U2 - 10.1007/s11663-016-0689-7
DO - 10.1007/s11663-016-0689-7
M3 - Article
AN - SCOPUS:84965029374
VL - 47
SP - 2177
EP - 2181
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
SN - 1073-5615
IS - 4
ER -