Novel approach to link between viscosity and structure of silicate melts via Darken's excess stability function: Focus on the amphoteric behavior of alumina

Joo Hyun Park; Hyuk Kim; Dong Joon Min

doi:10.1007/s11663-007-9122-6

Novel approach to link between viscosity and structure of silicate melts via Darken's excess stability function: Focus on the amphoteric behavior of alumina

Joo Hyun Park, Hyuk Kim, Dong Joon Min

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

The effect of alumina on the relationship between viscosity and structure of the CaO-SiO₂-Al₂O₃-MgO system is investigated by employing viscometer using the rotating cylinder method and Fourier transform-infrared (FT-IR) spectra, respectively. In addition, the original Darken's excess stability function was introduced in order to understand the thermophysical phenomena and the role of alumina based on thermodynamics. Alumina behaves as an amphoteric oxide in the CaO-SiO ₂-Al₂O₃-MgO melts, and this is not only experimentally confirmed but also thermodynamically proved by taking the Darken's excess stability function into account.

Original language	English
Pages (from-to)	150-153
Number of pages	4
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	39
Issue number	1
DOIs	https://doi.org/10.1007/s11663-007-9122-6
Publication status	Published - 2008 Feb

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.1007/s11663-007-9122-6

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Novel approach to link between viscosity and structure of silicate melts via Darken's excess stability function : Focus on the amphoteric behavior of alumina. / Park, Joo Hyun; Kim, Hyuk; Min, Dong Joon.

In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 39, No. 1, 02.2008, p. 150-153.

Research output: Contribution to journal › Article › peer-review

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Novel approach to link between viscosity and structure of silicate melts via Darken's excess stability function: Focus on the amphoteric behavior of alumina

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