Elastic-Constant Measurement for Lotus-Type Porous Magnesium with Resonant Ultrasound Spectroscopy

Masakazu Tane; Tetsu Ichitsubo; Ryo Takeda; Masahiko Hirao; Teruyuki Ikeda; Hideo Nakajima

doi:10.2320/jinstmet1952.67.9_417

Elastic-Constant Measurement for Lotus-Type Porous Magnesium with Resonant Ultrasound Spectroscopy

Masakazu Tane, Tetsu Ichitsubo, Ryo Takeda, Masahiko Hirao, Teruyuki Ikeda, Hideo Nakajima

IMR - Materials Development Division

Osaka University

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

Abstract

We measured the anisotropic elastic constants of a lotus-type porous magnesium, which possesses cylindrical pores aligned unidirectionally. We used the combination of resonant ultrasound spectroscopy and electromagnetic acoustic resonance methods to determine a complete set of the elastic constants. The acoustic measurements revealed that lotus magnesium shows hexagonal elastic symmetry with the c-axis along the longitudinal direction of the pores. Young's modulus E∥ parallel to the pore direction decreases linearly with porosity, while the normal Young's modulus E⊥ drops rapidly.

Original language	English
Pages (from-to)	417-419
Number of pages	3
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	67
Issue number	9
DOIs	https://doi.org/10.2320/jinstmet1952.67.9_417
Publication status	Published - 2003 Sept

Keywords

Elastic constants
Electromagnetic acoustic resonance
Magnesium
Porous metals
Resonant ultrasound spectroscopy

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10.2320/jinstmet1952.67.9_417

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title = "Elastic-Constant Measurement for Lotus-Type Porous Magnesium with Resonant Ultrasound Spectroscopy",

abstract = "We measured the anisotropic elastic constants of a lotus-type porous magnesium, which possesses cylindrical pores aligned unidirectionally. We used the combination of resonant ultrasound spectroscopy and electromagnetic acoustic resonance methods to determine a complete set of the elastic constants. The acoustic measurements revealed that lotus magnesium shows hexagonal elastic symmetry with the c-axis along the longitudinal direction of the pores. Young's modulus E∥ parallel to the pore direction decreases linearly with porosity, while the normal Young's modulus E⊥ drops rapidly.",

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author = "Masakazu Tane and Tetsu Ichitsubo and Ryo Takeda and Masahiko Hirao and Teruyuki Ikeda and Hideo Nakajima",

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AU - Tane, Masakazu

AU - Ichitsubo, Tetsu

AU - Takeda, Ryo

AU - Hirao, Masahiko

AU - Ikeda, Teruyuki

AU - Nakajima, Hideo

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N2 - We measured the anisotropic elastic constants of a lotus-type porous magnesium, which possesses cylindrical pores aligned unidirectionally. We used the combination of resonant ultrasound spectroscopy and electromagnetic acoustic resonance methods to determine a complete set of the elastic constants. The acoustic measurements revealed that lotus magnesium shows hexagonal elastic symmetry with the c-axis along the longitudinal direction of the pores. Young's modulus E∥ parallel to the pore direction decreases linearly with porosity, while the normal Young's modulus E⊥ drops rapidly.

AB - We measured the anisotropic elastic constants of a lotus-type porous magnesium, which possesses cylindrical pores aligned unidirectionally. We used the combination of resonant ultrasound spectroscopy and electromagnetic acoustic resonance methods to determine a complete set of the elastic constants. The acoustic measurements revealed that lotus magnesium shows hexagonal elastic symmetry with the c-axis along the longitudinal direction of the pores. Young's modulus E∥ parallel to the pore direction decreases linearly with porosity, while the normal Young's modulus E⊥ drops rapidly.

KW - Elastic constants

KW - Electromagnetic acoustic resonance

KW - Magnesium

KW - Porous metals

KW - Resonant ultrasound spectroscopy

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Elastic-Constant Measurement for Lotus-Type Porous Magnesium with Resonant Ultrasound Spectroscopy

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