S
Shumpei Ozawa
Researcher at Chiba Institute of Technology
Publications - 53
Citations - 724
Shumpei Ozawa is an academic researcher from Chiba Institute of Technology. The author has contributed to research in topics: Surface tension & Phase (matter). The author has an hindex of 12, co-authored 48 publications receiving 548 citations. Previous affiliations of Shumpei Ozawa include Japan Aerospace Exploration Agency & Tokyo Metropolitan University.
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Surface tension of liquid metals and alloys — Recent developments
TL;DR: This paper reviews the experimental progress made in the last few years, the theoretical framework required for modelling and understanding the relevant physico-chemical surface phenomena, and new containerless methods for surface tension measurements.
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The extraction of Nd from waste Nd-Fe-B alloys by the glass slag method
TL;DR: In this article, the use of molten slag materials to extract neodymium from waste Nd-Fe-B magnets was reported, and the results showed that the Nd content in the magnet alloys produced by the glass slag method was less than 0.01 wt.% Nd.
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Influence of oxygen partial pressure on surface tension of molten silver
TL;DR: In this paper, the surface tension of pure melt surface, σp, was determined without any contamination such as oxygen adsorption and the reaction between the melt and a measurement device at a PO2 of less than 10−12 Pa.
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Influence of oxygen partial pressure on surface tension and its temperature coefficient of molten iron
TL;DR: In this paper, an oscillating droplet method using an electromagnetic levitation furnace was used to measure the surface tension of molten iron over a very wide temperature range of 780 K including undercooling condition in a well controlled PO2 atmosphere.
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Oxygen partial pressure dependence of surface tension and its temperature coefficient for metallic melts: a discussion from the viewpoint of solubility and adsorption of oxygen
TL;DR: In this paper, surface tension of molten Si, Ag, and Fe-18Cr-8Ni alloy (Type-304 stainless steel) was measured as a function of the temperature and oxygen partial pressure of an ambient atmosphere by an oscillating drop method using electromagnetic levitation, which assures measurement over a wide range of temperatures below and above the melting point.