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

被引：84

作者：

Park, Joo Hyun ^{[1
]}

Kim, Hyuk ^{[2
]}

Min, Dong Joon ^{[2
]}

机构：

[1] POSCO, Tech Res Labs, Stainless Steel Res Grp, Pohang 790785, South Korea

[2] Yonsei Univ, Dept Met Syst Engn, Seoul 120749, South Korea

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2008年 / 39卷 / 01期

关键词：

D O I：

10.1007/s11663-007-9122-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：150 / 153

页数：4

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