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Korea Institute of Science and Technology

Ki Bae Kim

Soon Hyung Cho

Bo Young Hur

Seok Choun Bae

Hyun Kwang Seok

Yu Chan Kim

Eric Fleury

The present invention relates to a Cu-based amorphous alloy composition having a chemical composition represented by the following general formula, by atomic %: CuZrAl(M)(M), where a, b, c and d satisfy the formulas of 36&#x2266;a&#x2266;49, 1&#x2266;b&#x2266;10, 0&#x2266;c&#x2266;10, and 0&#x2266;d&#x2266;5, respectively, and c and d are not zero at the same time, and M, the 4th element added to a ternary alloy of Cu&#x2014;Zr&#x2014;Al, is one metal element selected from the group consisting of Nb, Ti, Be and Ag, and M, the 5th element added to the ternary alloy of the Cu&#x2014;Zr&#x2014;Al, is one amphoteric element or non-metal element selected from the group consisting of Sn and Si.

Cu-based amorphous alloy composition

A method for continuously producing foamed metals is disclosed. The method comprises the steps of (i) adding a previously dissolved molten metal to a viscosity-enhancing furnace and agitating the molten metal so as to uniformly maintain the viscosity of the molten metal; (ii) conveying the molten metal to an electronic agitating type foaming furnace; (iii) injecting gas into the conveyed molten metal while agitating to obtain a foamed molten metal; and (iv) drawing the obtained foamed molten metal using a roller and cooling the drawn foamed metal.

Method and apparatus for the continuous production of foamed metals

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Seoul, South Korea

Ki Bae Kim