Surface Tension and Related Ions Behavior of Silicate Melts of the Na2O-K2O-SiO2-CaF2 System under Ultrasonic Irradiation

被引：6

作者：

Min, Yi ^{[1
,2
,3
]}

Jiao, Shiyan ^{[1
,3
]}

Zhang, Rui ^{[1
,3
]}

Jia, Jixiang ^{[2
]}

Qi, Jie ^{[1
,3
]}

Liu, Chengjun ^{[1
,3
]}

机构：

[1] Minist Educ, Key Lab Ecol Met Multimetall Ores, Shenyang 110819, Liaoning, Peoples R China

[2] State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114021, Liaoning, Peoples R China

[3] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China

来源：

ISIJ INTERNATIONAL | 2021年 / 61卷 / 03期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

surface tension; melt structure; ion behavior; ultrasonic;

D O I：

10.2355/isijinternational.ISIJINT-2020-557

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Under ultrasonic irradiation, surface tension and structure of molten slags of Na2O-K2O-SiO2-CaF2 system were measured. Results showed that, the slags were degraded gradually with the increase of ultrasonic intensity and silica tetrahedron radicals with oxygen vacancies generated in the melts. In fluorine free slag, the dissociated radicals coordinate with free oxygen anions, which lead to the decrease of electrostatic force between ions and the related decrease of surface tension. While in fluorine bearing slag, the surface tension increases for the reason that the free fluorine anions dominate the behavior of coordination, which lead to the increase of electrostatic force between ions. The increase of surface tension will promote the down flow of mold flux between the gap of solidified steel shell and the mold copper wall, which will facilitate the lubrication between them.

引用

页码：1022 / 1028

页数：7

共 50 条

[21] Structure and rheology of iron-bearing Na2O-Al2O3-SiO2 melts
Webb, S
EUROPEAN JOURNAL OF MINERALOGY, 2005, 17 (02) : 223 - 232
[22] Surface tension evaluation of molten silicates containing surface-active components (B2O3, CaF2 or Na2O)
Nakamoto, Masashi
Tanaka, Toshihiro
Holappa, Lauri
Hamalainen, Marko
ISIJ INTERNATIONAL, 2007, 47 (02) : 211 - 216
[23] A Structural Molar Volume Model for Oxide Melts Part I: Li2O-Na2O-K2O-MgO-CaO-MnO-PbO-Al2O3-SiO2 Melts-Binary Systems
Thibodeau, Eric
Gheribi, Aimen E.
Jung, In-Ho
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2016, 47 (02): : 1147 - 1164
[24] SURFACE-TENSION OF MELTS IN THE FEO-FE2O3-CAO AND FEO-FE2O3-2CAO.SIO2 SYSTEMS UNDER AIR AND CO2 ATMOSPHERE
HARA, S
YAMAMOTO, H
TATEISHI, S
GASKELL, DR
OGINO, K
MATERIALS TRANSACTIONS JIM, 1991, 32 (09): : 829 - 836
[25] Surface active effect of Na2O on the rate of CO2 dissociation on the surface of molten FeOx-Na2O and FeOx-SiO2-Na2O systems
Matsuura, H
Tsukihashi, F
ISIJ INTERNATIONAL, 2005, 45 (07) : 1035 - 1040
[26] MODELING VISCOSITY AND SURFACE TENSION OF CaO-AL2O3-SiO2 SYSTEM
Rosypalova, Silvie
Rehackova, Lenka
Dudek, Rostislav
Dobrovska, Jana
Dobrovsky, L'udovit
Zaludova, Monika
METAL 2013: 22ND INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS, 2013, : 80 - 85
[27] Surface tension of PbO-B2O3 and Bi2O3-B2O3 glass melts
S. Fujino
C. Hwang
K. Morinaga
Journal of Materials Science, 2005, 40 : 2207 - 2212
[28] Effect of Boron Mud and CaF2 on Surface Tension and Density of CaO-SiO2-B2O3 Ternary Slag Systems
Yang, Li-li
Wang, Hong-ming
Zhu, Xiang
Li, Gui-rong
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2014, 21 (08) : 745 - 748
[29] Effect of Boron Mud and CaF2 on Surface Tension and Density of CaO-SiO2-B2O3 Ternary Slag Systems
Li-li Yang
Hong-ming Wang
Xiang Zhu
Gui-rong Li
Journal of Iron and Steel Research International, 2014, 21 : 745 - 748
[30] Effect of Boron Mud and CaF2 on Surface Tension and Density of CaO-SiO2-B2O3 Ternary Slag Systems
Li-li YANG
Hong-ming WANG
Xiang ZHU
Gui-rong LI
Journal of Iron and Steel Research(International), 2014, 21 (08) : 745 - 748

← 1 2 3 4 5 →