Polarization sensitive THz absorption spectroscopy for the evaluation of uniaxially deformed ultra-high molecular weight polyethylene

Tadao Tanabe; Kenta Watanabe; Yutaka Oyama; Koichi Seo

doi:10.1016/j.ndteint.2010.03.001

Polarization sensitive THz absorption spectroscopy for the evaluation of uniaxially deformed ultra-high molecular weight polyethylene

Tadao Tanabe, Kenta Watanabe, Yutaka Oyama, Koichi Seo

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

26 Citations (Scopus)

Abstract

Mechanically extensional-deformation of ultra-high molecular weight polyethylene (UHMWPE) was examined by using polarization terahertz (THz) spectroscopy as well as X-ray diffraction (XRD) analysis. Due to the B_1u lattice translational mode, a THz absorption band was observed around 2.2 THz. The band intensity of the non-deformed UHMWPE is isotropic. For deformed UHMWPE, the dichroism appeared in the 2.2 THz band. The absorption intensity was smaller in spectra in which the THz wave electric polarization direction was parallel to the deformation direction than that in which the polarization was perpendicular. The intensities in each polarization direction are dependent on the amount of elongation strain. Based on the influences drawn from the THz and XRD results, THz non-destructive diagnosis of the tensile strain in deformed UHMWPE is proposed based on the dichroism of B_1u band intensities observed in polarization THz spectroscopy.

Original language	English
Pages (from-to)	329-333
Number of pages	5
Journal	NDT and E International
Volume	43
Issue number	4
DOIs	https://doi.org/10.1016/j.ndteint.2010.03.001
Publication status	Published - 2010 Jun
Externally published	Yes

Keywords

Extensional-deformed ultra-high molecular weight polyethylene
Non-destructive inspections
Terahertz dichroism

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1016/j.ndteint.2010.03.001

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title = "Polarization sensitive THz absorption spectroscopy for the evaluation of uniaxially deformed ultra-high molecular weight polyethylene",

abstract = "Mechanically extensional-deformation of ultra-high molecular weight polyethylene (UHMWPE) was examined by using polarization terahertz (THz) spectroscopy as well as X-ray diffraction (XRD) analysis. Due to the B1u lattice translational mode, a THz absorption band was observed around 2.2 THz. The band intensity of the non-deformed UHMWPE is isotropic. For deformed UHMWPE, the dichroism appeared in the 2.2 THz band. The absorption intensity was smaller in spectra in which the THz wave electric polarization direction was parallel to the deformation direction than that in which the polarization was perpendicular. The intensities in each polarization direction are dependent on the amount of elongation strain. Based on the influences drawn from the THz and XRD results, THz non-destructive diagnosis of the tensile strain in deformed UHMWPE is proposed based on the dichroism of B1u band intensities observed in polarization THz spectroscopy.",

keywords = "Extensional-deformed ultra-high molecular weight polyethylene, Non-destructive inspections, Terahertz dichroism",

author = "Tadao Tanabe and Kenta Watanabe and Yutaka Oyama and Koichi Seo",

year = "2010",

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AU - Tanabe, Tadao

AU - Watanabe, Kenta

AU - Oyama, Yutaka

AU - Seo, Koichi

PY - 2010/6

Y1 - 2010/6

N2 - Mechanically extensional-deformation of ultra-high molecular weight polyethylene (UHMWPE) was examined by using polarization terahertz (THz) spectroscopy as well as X-ray diffraction (XRD) analysis. Due to the B1u lattice translational mode, a THz absorption band was observed around 2.2 THz. The band intensity of the non-deformed UHMWPE is isotropic. For deformed UHMWPE, the dichroism appeared in the 2.2 THz band. The absorption intensity was smaller in spectra in which the THz wave electric polarization direction was parallel to the deformation direction than that in which the polarization was perpendicular. The intensities in each polarization direction are dependent on the amount of elongation strain. Based on the influences drawn from the THz and XRD results, THz non-destructive diagnosis of the tensile strain in deformed UHMWPE is proposed based on the dichroism of B1u band intensities observed in polarization THz spectroscopy.

AB - Mechanically extensional-deformation of ultra-high molecular weight polyethylene (UHMWPE) was examined by using polarization terahertz (THz) spectroscopy as well as X-ray diffraction (XRD) analysis. Due to the B1u lattice translational mode, a THz absorption band was observed around 2.2 THz. The band intensity of the non-deformed UHMWPE is isotropic. For deformed UHMWPE, the dichroism appeared in the 2.2 THz band. The absorption intensity was smaller in spectra in which the THz wave electric polarization direction was parallel to the deformation direction than that in which the polarization was perpendicular. The intensities in each polarization direction are dependent on the amount of elongation strain. Based on the influences drawn from the THz and XRD results, THz non-destructive diagnosis of the tensile strain in deformed UHMWPE is proposed based on the dichroism of B1u band intensities observed in polarization THz spectroscopy.

KW - Extensional-deformed ultra-high molecular weight polyethylene

KW - Non-destructive inspections

KW - Terahertz dichroism

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Polarization sensitive THz absorption spectroscopy for the evaluation of uniaxially deformed ultra-high molecular weight polyethylene

Abstract

Keywords

ASJC Scopus subject areas

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