EBSD study of (110) orientation of iridium (Ir) coating on niobium (Nb) substrate by double glow plasma

Wangping Wu; Zhaofeng Chen; Xingwang Cheng; Yangwei Wang

doi:10.1016/j.nimb.2012.12.069

EBSD study of (110) orientation of iridium (Ir) coating on niobium (Nb) substrate by double glow plasma

Wangping Wu, Zhaofeng Chen^*, Xingwang Cheng, Yangwei Wang

^*Corresponding author for this work

School of Material Science and Engineering

Nanjing University of Aeronautics and Astronautics

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

14 Citations (Scopus)

Abstract

(110)-Oriented Ir coating was prepared by double glow plasma technique on (200)-oriented Nb substrate. The microstructure of the coating was observed by scanning electron microscopy (SEM). The crystal orientation of the coating was determined by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD). The coating was composed of columnar grains with submicrometer size of 0.2-0.3 μm. The thickness of the coating was approximately 6-7 μm. The mean misorientation angles of the surface of the coating were about 38.6°. The columnar Ir coating had a preferential growth orientation of (110) crystal plane by XRD and EBSD due to the initial nuclei with preferred growth on the surface of the substrate. The vigorous bombardment from the high energy ions prevented the lower energy (100) crystal face and the lowest energy (111) crystal face from generating the orientation. Only the highest energy (110) crystal face could be formed and grew up, which resulted in the preferred (110) orientation.

Original language	English
Pages (from-to)	315-319
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	307
DOIs	https://doi.org/10.1016/j.nimb.2012.12.069
Publication status	Published - 2013

Keywords

Coating
EBSD
Iridium
Orientation
Plasma
XRD

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10.1016/j.nimb.2012.12.069

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title = "EBSD study of (110) orientation of iridium (Ir) coating on niobium (Nb) substrate by double glow plasma",

abstract = "(110)-Oriented Ir coating was prepared by double glow plasma technique on (200)-oriented Nb substrate. The microstructure of the coating was observed by scanning electron microscopy (SEM). The crystal orientation of the coating was determined by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD). The coating was composed of columnar grains with submicrometer size of 0.2-0.3 μm. The thickness of the coating was approximately 6-7 μm. The mean misorientation angles of the surface of the coating were about 38.6°. The columnar Ir coating had a preferential growth orientation of (110) crystal plane by XRD and EBSD due to the initial nuclei with preferred growth on the surface of the substrate. The vigorous bombardment from the high energy ions prevented the lower energy (100) crystal face and the lowest energy (111) crystal face from generating the orientation. Only the highest energy (110) crystal face could be formed and grew up, which resulted in the preferred (110) orientation.",

keywords = "Coating, EBSD, Iridium, Orientation, Plasma, XRD",

author = "Wangping Wu and Zhaofeng Chen and Xingwang Cheng and Yangwei Wang",

year = "2013",

doi = "10.1016/j.nimb.2012.12.069",

language = "English",

volume = "307",

pages = "315--319",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - EBSD study of (110) orientation of iridium (Ir) coating on niobium (Nb) substrate by double glow plasma

AU - Wu, Wangping

AU - Chen, Zhaofeng

AU - Cheng, Xingwang

AU - Wang, Yangwei

PY - 2013

Y1 - 2013

N2 - (110)-Oriented Ir coating was prepared by double glow plasma technique on (200)-oriented Nb substrate. The microstructure of the coating was observed by scanning electron microscopy (SEM). The crystal orientation of the coating was determined by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD). The coating was composed of columnar grains with submicrometer size of 0.2-0.3 μm. The thickness of the coating was approximately 6-7 μm. The mean misorientation angles of the surface of the coating were about 38.6°. The columnar Ir coating had a preferential growth orientation of (110) crystal plane by XRD and EBSD due to the initial nuclei with preferred growth on the surface of the substrate. The vigorous bombardment from the high energy ions prevented the lower energy (100) crystal face and the lowest energy (111) crystal face from generating the orientation. Only the highest energy (110) crystal face could be formed and grew up, which resulted in the preferred (110) orientation.

AB - (110)-Oriented Ir coating was prepared by double glow plasma technique on (200)-oriented Nb substrate. The microstructure of the coating was observed by scanning electron microscopy (SEM). The crystal orientation of the coating was determined by X-ray diffraction (XRD) and electron backscatter diffraction (EBSD). The coating was composed of columnar grains with submicrometer size of 0.2-0.3 μm. The thickness of the coating was approximately 6-7 μm. The mean misorientation angles of the surface of the coating were about 38.6°. The columnar Ir coating had a preferential growth orientation of (110) crystal plane by XRD and EBSD due to the initial nuclei with preferred growth on the surface of the substrate. The vigorous bombardment from the high energy ions prevented the lower energy (100) crystal face and the lowest energy (111) crystal face from generating the orientation. Only the highest energy (110) crystal face could be formed and grew up, which resulted in the preferred (110) orientation.

KW - Coating

KW - EBSD

KW - Iridium

KW - Orientation

KW - Plasma

KW - XRD

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DO - 10.1016/j.nimb.2012.12.069

M3 - Article

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SN - 0168-583X

VL - 307

SP - 315

EP - 319

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

EBSD study of (110) orientation of iridium (Ir) coating on niobium (Nb) substrate by double glow plasma

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Keywords

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