Production of bulk glassy alloy foams by high pressure hydrogen

Takeshi Wada; Akihisa Inoue

doi:10.1016/j.msea.2006.10.144

Production of bulk glassy alloy foams by high pressure hydrogen

Takeshi Wada, Akihisa Inoue

Materials Development Division

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A Pd-Cu-Ni-P bulk glassy alloy foam was fabricated by water quenching under pressurized hydrogen atmosphere and subsequent annealing above glass transition temperature under vacuum. At the water-quenching stage, a high density of fine bubbles is introduced. At the subsequent annealing stage, hydrogen atoms precipitate from the glassy phase to bubbles and then bubble expansion takes place above glass transition temperature. The fine and uniform structure of the foam seems to result from the formation of a high density of fine bubbles caused by high atmosphere hydrogen pressure.

Original language	English
Pages (from-to)	254-260
Number of pages	7
Journal	Materials Science and Engineering A
Volume	447
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2006.10.144
Publication status	Published - 2007 Feb 25

Keywords

Foaming
Glassy alloy foam
Palladium based alloy
Supercooled liquid

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.10.144

Cite this

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title = "Production of bulk glassy alloy foams by high pressure hydrogen",

abstract = "A Pd-Cu-Ni-P bulk glassy alloy foam was fabricated by water quenching under pressurized hydrogen atmosphere and subsequent annealing above glass transition temperature under vacuum. At the water-quenching stage, a high density of fine bubbles is introduced. At the subsequent annealing stage, hydrogen atoms precipitate from the glassy phase to bubbles and then bubble expansion takes place above glass transition temperature. The fine and uniform structure of the foam seems to result from the formation of a high density of fine bubbles caused by high atmosphere hydrogen pressure.",

keywords = "Foaming, Glassy alloy foam, Palladium based alloy, Supercooled liquid",

author = "Takeshi Wada and Akihisa Inoue",

note = "Funding Information: T.W. would like to thank Associate Prof. M. Hasegawa and Mr. D. Nagata, Institute for Materials Research, Tohoku University, for assisting the internal friction measurements. This work was supported by a Grand-In-Aid for Science Research in a priority Area, “Research and Development on Advanced Metallic Glass, Inorganic Materials and Joining Technology” from the Ministry of Education, Science, Sports and Culture, Japan.",

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doi = "10.1016/j.msea.2006.10.144",

language = "English",

volume = "447",

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journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

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T1 - Production of bulk glassy alloy foams by high pressure hydrogen

AU - Wada, Takeshi

AU - Inoue, Akihisa

N1 - Funding Information: T.W. would like to thank Associate Prof. M. Hasegawa and Mr. D. Nagata, Institute for Materials Research, Tohoku University, for assisting the internal friction measurements. This work was supported by a Grand-In-Aid for Science Research in a priority Area, “Research and Development on Advanced Metallic Glass, Inorganic Materials and Joining Technology” from the Ministry of Education, Science, Sports and Culture, Japan.

PY - 2007/2/25

Y1 - 2007/2/25

N2 - A Pd-Cu-Ni-P bulk glassy alloy foam was fabricated by water quenching under pressurized hydrogen atmosphere and subsequent annealing above glass transition temperature under vacuum. At the water-quenching stage, a high density of fine bubbles is introduced. At the subsequent annealing stage, hydrogen atoms precipitate from the glassy phase to bubbles and then bubble expansion takes place above glass transition temperature. The fine and uniform structure of the foam seems to result from the formation of a high density of fine bubbles caused by high atmosphere hydrogen pressure.

AB - A Pd-Cu-Ni-P bulk glassy alloy foam was fabricated by water quenching under pressurized hydrogen atmosphere and subsequent annealing above glass transition temperature under vacuum. At the water-quenching stage, a high density of fine bubbles is introduced. At the subsequent annealing stage, hydrogen atoms precipitate from the glassy phase to bubbles and then bubble expansion takes place above glass transition temperature. The fine and uniform structure of the foam seems to result from the formation of a high density of fine bubbles caused by high atmosphere hydrogen pressure.

KW - Foaming

KW - Glassy alloy foam

KW - Palladium based alloy

KW - Supercooled liquid

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JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

IS - 1-2

ER -

Production of bulk glassy alloy foams by high pressure hydrogen

Abstract

Keywords

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