Structural Role of Alkali Cations in Calcium Aluminosilicate Glasses as Examined Using Oxygen-17 Solid-State Nuclear Magnetic Resonance Spectroscopy

被引：12

作者：

Sukenaga, Sohei ^{[1
]}

Kanehashi, Koji ^{[2
]}

Shibata, Hiroyuki ^{[1
]}

Saito, Noritaka ^{[3
]}

Nakashima, Kunihiko ^{[3
]}

机构：

[1] Tohoku Univ, IMRAM, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[2] NSSMC, Adv Technol Res Labs, Mat Characterizat Res Lab, 20-1 Shintomi, Futtsu 2938511, Japan

[3] Kyushu Univ, Dept Mat Sci & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2016年 / 47卷 / 04期

基金：

日本学术振兴会;

关键词：

NON-BRIDGING OXYGEN; SILICATE-GLASSES; NMR-SPECTROSCOPY; DISILICATE GLASSES; METAL OXIDE; AL-27; NMR; MAS NMR; MELTS; COORDINATION; VISCOSITY;

D O I：

10.1007/s11663-016-0689-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 (O-17 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 O-17 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 O-17 NMR experiment also showed that sodium and lithium cations in part act as network modifier alongside with calcium cations.

引用

页码：2177 / 2181

页数：5

共 35 条

[1] Z filtering in MQMAS NMR [J].