Surface tension of liquid Ti with adsorbed oxygen and its prediction

被引：33

作者：

Brillo, J. ^{[1
]}

Wessing, J. ^{[1
]}

Kobatake, H. ^{[2
]}

Fukuyama, H. ^{[3
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Mat Phys Weltraum, D-51170 Cologne, Germany

[2] Hirosaki Univ, Inst Reg Innovat, 2-1-3 Matsubara, Hirosaki, Aomori 0300813, Japan

[3] Tohoku Univ, IMRAM, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2019年 / 290卷

关键词：

Electromagnetic levitation; Liquid titanium; Modelling; Oxygen; Surface tension; PARTIAL-PRESSURE; THERMAL-EXPANSION; STAINLESS-STEELS; MARANGONI FLOW; BINARY-ALLOYS; CU; TEMPERATURE; DENSITY; TITANIUM; METALS;

D O I：

10.1016/j.molliq.2019.111226

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Surface tensions of electromagnetically levitated liquid Ti-samples were measured under the influence of oxygen. The partial pressure of oxygen is controlled by means of yttria-stabilized zirconia tubes as well as Ar/H-2/H2O buffer gas mixtures. In addition, Ti-O samples were prepared by adding different amounts of TiO2 powder to pure Ti. No significant dependence of the surface tension on the applied oxygen partial pressure was found for the samples processed. However, the surface tension was found to strongly depend on the bulk oxygen mole fraction determined by chemical analysis. From some experiments a small time dependence of the surface tension became evident. The observed dependencies of the surface tension on oxygen mole fraction as well as on time could be described by the model developed in the present work. It is based on adsorption/desorption rate equations and the surface tension is calculated from the ideal Butler equation. Non-ideal interactions Delta H not equal 0 between oxygen and titanium are taken into account. It is generally observed that, due to the strong attractive interaction between Ti and oxygen, the surface tension of Ti is much less sensitive to the presence of oxygen than the surface tension of other metallic systems. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：12

共 68 条

[1]

Akca E., 2015, Periodicals of Engineering and Natural Sciences (PEN), DOI DOI 10.21533/PEN.V3I1.43

[2] Excess volume and heat of mixing in Cu-Ti liquid mixture [J].

Amore, S. ;

Delsante, S. ;

Kobatake, H. ;

Brillo, J. .

JOURNAL OF CHEMICAL PHYSICS, 2013, 139 (06)

[3] Surface tension of liquid Cu-Ti binary alloys measured by electromagnetic levitation and thermodynamic modelling [J].

Amore, S. ;

Brillo, J. ;

Egry, I. ;

Novakovic, R. .

APPLIED SURFACE SCIENCE, 2011, 257 (17) :7739-7745

[4]

Amore S, 2011, HIGH TEMP-HIGH PRESS, V40, P225

[5]

[Anonymous], MAT SCI TECHNOL

[6]

BELTON GR, 1976, METALL TRANS B, V7, P35, DOI 10.1007/BF02664689

[7] Thermodynamics of Titanium-Based Melts: II. Oxygen in Liquid Titanium [J].

Belyanchikov, L. N. .

RUSSIAN METALLURGY, 2010, (12) :1156-1163

[8] SURFACE TENSION OF LIQUID SILVER ALLOYS .1. SILVER-GOLD ALLOYS [J].

BERNARD, G ;

LUPIS, CHP .

METALLURGICAL TRANSACTIONS, 1971, 2 (02) :555-&

[9] Density and thermal expansion of liquid Ag-Cu and Ag-Au alloys [J].

Brillo, J. ;

Egry, I. ;

Ho, I. .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2006, 27 (02) :494-506

[10] Thermophysical property measurements of liquid metals by electromagnetic levitation [J].

Brillo, J ;

Lohöfer, G ;

Schmidt-Hohagen, F ;

Schneider, S ;

Egry, I .

INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY, 2006, 26 (3-4) :247-273

← 1 2 3 4 5 6 7 →