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

Sohei Sukenaga, Koji Kanehashi, Hiroyuki Shibata, Noritaka Saito, Kunihiko Nakashima

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Abstract

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.

Original languageEnglish
Pages (from-to)2177-2181
Number of pages5
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume47
Issue number4
DOIs
Publication statusPublished - Aug 1 2016

Fingerprint

oxygen 17
Aluminosilicates
magnetic resonance spectroscopy
Alkalies
Nuclear magnetic resonance spectroscopy
Cations
calcium
Calcium
alkalies
Positive ions
Oxygen
solid state
cations
Glass
nuclear magnetic resonance
glass
Lithium
Nuclear magnetic resonance
lithium
Sodium

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

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AU - Kanehashi, Koji

AU - Shibata, Hiroyuki

AU - Saito, Noritaka

AU - Nakashima, Kunihiko

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