Transparent ZnAl2O4ceramics fabricated by spark plasma sintering

Byung Nam Kim; Keijiro Hiraga; Ahrong Jeong; Chungfeng Hu; Tohru S. Suzuki; Jon Do Yun; Yoshio Sakka

doi:10.2109/jcersj2.122.784

Transparent ZnAl₂O₄ceramics fabricated by spark plasma sintering

Byung Nam Kim^*, Keijiro Hiraga, Ahrong Jeong, Chungfeng Hu, Tohru S. Suzuki, Jon Do Yun, Yoshio Sakka

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

Highly transparent zinc aluminate ceramics were fabricated by the solid-state reaction using a spark plasma sintering machine. The sintered body exhibited a microstructure consisting of submicron-sized grains and extremely low porosities. Annealing of the sintered body in air improved the transmission close to the theoretical limit in a wavelength range of 1-5μm. The band gap energy estimated from the absorption coefficient was 4.3 eV. The Young's modulus and the bulk modulus measured for the fully dense zinc aluminates were 282 and 211 GPa, respectively.

Original language	English
Pages (from-to)	784-787
Number of pages	4
Journal	Journal of the Ceramic Society of Japan
Volume	122
Issue number	1429
DOIs	https://doi.org/10.2109/jcersj2.122.784
Publication status	Published - 2014 Sept 1
Externally published	Yes

Keywords

Annealing
Band gap energy
Elastic property
Spark plasma sintering
Transmission
Zinc aluminate

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.2109/jcersj2.122.784

Cite this

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title = "Transparent ZnAl2O4ceramics fabricated by spark plasma sintering",

abstract = "Highly transparent zinc aluminate ceramics were fabricated by the solid-state reaction using a spark plasma sintering machine. The sintered body exhibited a microstructure consisting of submicron-sized grains and extremely low porosities. Annealing of the sintered body in air improved the transmission close to the theoretical limit in a wavelength range of 1-5μm. The band gap energy estimated from the absorption coefficient was 4.3 eV. The Young's modulus and the bulk modulus measured for the fully dense zinc aluminates were 282 and 211 GPa, respectively.",

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AU - Kim, Byung Nam

AU - Hiraga, Keijiro

AU - Jeong, Ahrong

AU - Hu, Chungfeng

AU - Suzuki, Tohru S.

AU - Yun, Jon Do

AU - Sakka, Yoshio

PY - 2014/9/1

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AB - Highly transparent zinc aluminate ceramics were fabricated by the solid-state reaction using a spark plasma sintering machine. The sintered body exhibited a microstructure consisting of submicron-sized grains and extremely low porosities. Annealing of the sintered body in air improved the transmission close to the theoretical limit in a wavelength range of 1-5μm. The band gap energy estimated from the absorption coefficient was 4.3 eV. The Young's modulus and the bulk modulus measured for the fully dense zinc aluminates were 282 and 211 GPa, respectively.

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KW - Elastic property

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KW - Transmission

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