Formation of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys

Kang Cheol Kim; Ka Ram Lim; Sung Hyun Park; Min Young Na; Won Tae Kim; Do Hyang Kim

doi:10.1016/j.corsci.2014.07.035

Formation of amorphous oxide in Al₈₂Ni₁₃Zr₅ and Al₈₈Ni₇Ca₅ alloys

Kang Cheol Kim, Ka Ram Lim, Sung Hyun Park, Min Young Na, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

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

8 Citations (Scopus)

Abstract

Formation and thermal stability of amorphous oxide in Al₈₂Ni₁₃Zr₅ and Al₈₈Ni₇Ca₅ alloys during holding at 873K have been investigated. The thickness of amorphous oxide layer upon heating up to 873K is ~8nm in Al₈₂Ni₁₃Zr₅, while ~15nm in Al₈₈Ni₇Ca₅. After exposure for 15h, the amorphous oxide still remains in Al₈₈Ni₇Ca₅, indicating that the thermal stability of the amorphous oxide in Al₈₈Ni₇Ca₅ is higher than that in Al₈₂Ni₁₃Zr₅. Such a phenomenon is discussed from the points of view of structural stability and oxygen ion mobility in the crystalline and amorphous oxide phases.

Original language	English
Pages (from-to)	209-214
Number of pages	6
Journal	Corrosion Science
Volume	88
DOIs	https://doi.org/10.1016/j.corsci.2014.07.035
Publication status	Published - 2014 Nov

Bibliographical note

Funding Information:
This work was supported by the Global Research Laboratory Program of the Korean Ministry of Education, Science and Technology.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

Access to Document

10.1016/j.corsci.2014.07.035

Cite this

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title = "Formation of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys",

abstract = "Formation and thermal stability of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys during holding at 873K have been investigated. The thickness of amorphous oxide layer upon heating up to 873K is ~8nm in Al82Ni13Zr5, while ~15nm in Al88Ni7Ca5. After exposure for 15h, the amorphous oxide still remains in Al88Ni7Ca5, indicating that the thermal stability of the amorphous oxide in Al88Ni7Ca5 is higher than that in Al82Ni13Zr5. Such a phenomenon is discussed from the points of view of structural stability and oxygen ion mobility in the crystalline and amorphous oxide phases.",

author = "Kim, {Kang Cheol} and Lim, {Ka Ram} and Park, {Sung Hyun} and Na, {Min Young} and Kim, {Won Tae} and Kim, {Do Hyang}",

note = "Funding Information: This work was supported by the Global Research Laboratory Program of the Korean Ministry of Education, Science and Technology.",

year = "2014",

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doi = "10.1016/j.corsci.2014.07.035",

language = "English",

volume = "88",

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T1 - Formation of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys

AU - Kim, Kang Cheol

AU - Lim, Ka Ram

AU - Park, Sung Hyun

AU - Na, Min Young

AU - Kim, Won Tae

AU - Kim, Do Hyang

N1 - Funding Information: This work was supported by the Global Research Laboratory Program of the Korean Ministry of Education, Science and Technology.

PY - 2014/11

Y1 - 2014/11

N2 - Formation and thermal stability of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys during holding at 873K have been investigated. The thickness of amorphous oxide layer upon heating up to 873K is ~8nm in Al82Ni13Zr5, while ~15nm in Al88Ni7Ca5. After exposure for 15h, the amorphous oxide still remains in Al88Ni7Ca5, indicating that the thermal stability of the amorphous oxide in Al88Ni7Ca5 is higher than that in Al82Ni13Zr5. Such a phenomenon is discussed from the points of view of structural stability and oxygen ion mobility in the crystalline and amorphous oxide phases.

AB - Formation and thermal stability of amorphous oxide in Al82Ni13Zr5 and Al88Ni7Ca5 alloys during holding at 873K have been investigated. The thickness of amorphous oxide layer upon heating up to 873K is ~8nm in Al82Ni13Zr5, while ~15nm in Al88Ni7Ca5. After exposure for 15h, the amorphous oxide still remains in Al88Ni7Ca5, indicating that the thermal stability of the amorphous oxide in Al88Ni7Ca5 is higher than that in Al82Ni13Zr5. Such a phenomenon is discussed from the points of view of structural stability and oxygen ion mobility in the crystalline and amorphous oxide phases.

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