Transmission electron microscopic observation of layered double hydroxide films formed on aluminum alloys prepared by steam coating process

Naoki Takata, Hongmei Li, Makoto Kobashi, Yuta Shimada, Ai Serizawa, Takahiro Ishizaki

研究成果: Article

抄録

Synopsis: Microstructures and crystallographic features of layered double hydroxide (LDH) particles and the LDH film formed on the aluminum alloy sheet (alloy 7075) using the steam coating process were examined by transmission electron microscopy (TEM). The LDH powder particles exhibited a hexagonal-disc-shape morphology. Their disc plane and side planes were parallel to a basal plane and prism planes of the LDH hexagonal crystal, respectively. A cross-sectional thin TEM sample was prepared from the interface between the LDH film and the Al alloy substrate using a focused ion beam combined with pick-up technique. TEM observations revealed that the LDH film formed on the Al alloy exhibited a dual-layer structure, which consists of a continuous Zn-rich amorphous layer (including numerous nano-particles with fcc structure) on the Al substrate side and a LDH layer composed of a number of disc-shaped LDH particles.

元の言語English
ページ(範囲)177-182
ページ数6
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
105
発行部数2
DOI
出版物ステータスPublished - 2019 2 1

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Steam
steam
aluminum alloys
hydroxides
coating
Aluminum alloys
Transmission electron microscopy
Coatings
Electrons
electrons
Focused ion beams
Substrates
Prisms
transmission electron microscopy
Powders
Crystals
Microstructure
disks (shapes)
hydroxide ion
prisms

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

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title = "Transmission electron microscopic observation of layered double hydroxide films formed on aluminum alloys prepared by steam coating process",
abstract = "Synopsis: Microstructures and crystallographic features of layered double hydroxide (LDH) particles and the LDH film formed on the aluminum alloy sheet (alloy 7075) using the steam coating process were examined by transmission electron microscopy (TEM). The LDH powder particles exhibited a hexagonal-disc-shape morphology. Their disc plane and side planes were parallel to a basal plane and prism planes of the LDH hexagonal crystal, respectively. A cross-sectional thin TEM sample was prepared from the interface between the LDH film and the Al alloy substrate using a focused ion beam combined with pick-up technique. TEM observations revealed that the LDH film formed on the Al alloy exhibited a dual-layer structure, which consists of a continuous Zn-rich amorphous layer (including numerous nano-particles with fcc structure) on the Al substrate side and a LDH layer composed of a number of disc-shaped LDH particles.",
keywords = "Aluminum alloys, Hydroxide, Steam coating, Surface treatment, Transmission electron microscopy",
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T1 - Transmission electron microscopic observation of layered double hydroxide films formed on aluminum alloys prepared by steam coating process

AU - Takata, Naoki

AU - Li, Hongmei

AU - Kobashi, Makoto

AU - Shimada, Yuta

AU - Serizawa, Ai

AU - Ishizaki, Takahiro

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Synopsis: Microstructures and crystallographic features of layered double hydroxide (LDH) particles and the LDH film formed on the aluminum alloy sheet (alloy 7075) using the steam coating process were examined by transmission electron microscopy (TEM). The LDH powder particles exhibited a hexagonal-disc-shape morphology. Their disc plane and side planes were parallel to a basal plane and prism planes of the LDH hexagonal crystal, respectively. A cross-sectional thin TEM sample was prepared from the interface between the LDH film and the Al alloy substrate using a focused ion beam combined with pick-up technique. TEM observations revealed that the LDH film formed on the Al alloy exhibited a dual-layer structure, which consists of a continuous Zn-rich amorphous layer (including numerous nano-particles with fcc structure) on the Al substrate side and a LDH layer composed of a number of disc-shaped LDH particles.

AB - Synopsis: Microstructures and crystallographic features of layered double hydroxide (LDH) particles and the LDH film formed on the aluminum alloy sheet (alloy 7075) using the steam coating process were examined by transmission electron microscopy (TEM). The LDH powder particles exhibited a hexagonal-disc-shape morphology. Their disc plane and side planes were parallel to a basal plane and prism planes of the LDH hexagonal crystal, respectively. A cross-sectional thin TEM sample was prepared from the interface between the LDH film and the Al alloy substrate using a focused ion beam combined with pick-up technique. TEM observations revealed that the LDH film formed on the Al alloy exhibited a dual-layer structure, which consists of a continuous Zn-rich amorphous layer (including numerous nano-particles with fcc structure) on the Al substrate side and a LDH layer composed of a number of disc-shaped LDH particles.

KW - Aluminum alloys

KW - Hydroxide

KW - Steam coating

KW - Surface treatment

KW - Transmission electron microscopy

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