SURFACE-TENSION MEASUREMENTS OF LIQUID-METALS USING LEVITATION, MICROGRAVITY, AND IMAGE-PROCESSING

被引：27

作者：

EGRY, I

LOHOFER, G

NEUHAUS, P

SAUERLAND, S

机构：

[1] Institute for Space Simulation, German Aerospace Research Establishment, DLR, Köln-90

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 1992年 / 13卷 / 01期

关键词：

IMAGE PROCESSING; LEVITATION; MICROGRAVITY; METALS; SURFACE TENSION;

D O I：

10.1007/BF00503356

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An improved method for measuring the surface tension of liquid metals is proposed. It makes use of the electromagnetic levitation technique for levitating a liquid metal droplet and of digital image processing to evaluate the surface oscillations of the droplet. The oscillation frequencies determine the surface tension. This paper contains a discussion of the theoretical background and a description of the experimental setup. In addition, preliminary results on FeNi samples in 1 g and microgravity are presented.

引用

页码：65 / 74

页数：10

共 24 条

[1] OSCILLATIONS OF MAGNETICALLY LEVITATED ASPHERICAL DROPLETS [J].