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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
- Authors
- Park, Joo Hyun; Kim, Hyuk; Min, Dong Joon
- Issue Date
- Feb-2008
- Publisher
- ASM International
- Keywords
- ALUMINOSILICATE GLASSES; ACTIVITY-COEFFICIENTS; CALCIUM SILICATE; VISCOUS-FLOW; SLAGS; SYSTEM; SPECIATION; PRESSURE; AMBIENT; BINARY; Activity Coefficient; Alumina Concentration; Lower Wave Number; Triglycine Sulfate; Wide Composition Range
- Citation
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, v.39, no.1, pp.150 - 153
- Indexed
- SCIE
SCOPUS
- Journal Title
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
- Volume
- 39
- Number
- 1
- Start Page
- 150
- End Page
- 153
- ISSN
- 1073-5615
- 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-SiO2-Al2O3-MgO melts, and this is not only experimentally confirmed but also thermodynamically proved by taking the Darken’s excess stability function into account.
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Related Researcher
- Park, Joo Hyun
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)