Microstructural stability of nanostructured Cu alloys during high-temperature irradiation

Nhon Q. Vo; See W. Chee; Daniel Schwen; Xuan Zhang; Pascal Bellon; Robert S. Averback

doi:10.1016/j.scriptamat.2010.07.009

Microstructural stability of nanostructured Cu alloys during high-temperature irradiation

Nhon Q. Vo
, See W. Chee
, Daniel Schwen
, Xuan Zhang
, Pascal Bellon
, Robert S. Averback

Nuclear Science & Technology

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

69 Scopus citations

Abstract

The stability of model nanostructured Cu₉₀Mo₁₀ and Cu₉₀W₁₀ alloys during irradiation with 1.8 MeV Kr ⁺ at very high temperatures was investigated. Significant coarsening occurs only above ∼0.6T_m in Cu₉₀Mo₁₀ and ∼0.8T_m in Cu₉₀W₁₀ (T_m is the melting point of Cu). Below these temperatures, nanoprecipitates nucleate and grow to a saturation diameter of ∼4 nm. These very small nanoprecipitates confer remarkable microstructural stability, with the Cu grain size remaining below 40 nm. Computer simulations help to explain why these nanostructures are so stable.

Original language	English
Pages (from-to)	929-932
Number of pages	4
Journal	Scripta Materialia
Volume	63
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2010.07.009
State	Published - Nov 2010

Keywords

Cu alloys
Implantation
Nanostructures
Thin films

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10.1016/j.scriptamat.2010.07.009

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title = "Microstructural stability of nanostructured Cu alloys during high-temperature irradiation",

abstract = "The stability of model nanostructured Cu90Mo10 and Cu90W10 alloys during irradiation with 1.8 MeV Kr + at very high temperatures was investigated. Significant coarsening occurs only above ∼0.6Tm in Cu90Mo10 and ∼0.8Tm in Cu90W10 (Tm is the melting point of Cu). Below these temperatures, nanoprecipitates nucleate and grow to a saturation diameter of ∼4 nm. These very small nanoprecipitates confer remarkable microstructural stability, with the Cu grain size remaining below 40 nm. Computer simulations help to explain why these nanostructures are so stable.",

keywords = "Cu alloys, Implantation, Nanostructures, Thin films",

author = "Vo, \{Nhon Q.\} and Chee, \{See W.\} and Daniel Schwen and Xuan Zhang and Pascal Bellon and Averback, \{Robert S.\}",

note = "Funding Information: This research was supported by the US DoE-BES under Grant DEFG02-05ER46217 and by the NSF under Grant DMR 08-04615 . The work was carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois, which are partially supported by the US Department of Energy under Grants DE-FG02-07ER46453 and DE-FG02-07ER46471 .",

year = "2010",

month = nov,

doi = "10.1016/j.scriptamat.2010.07.009",

language = "English",

volume = "63",

pages = "929--932",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Microstructural stability of nanostructured Cu alloys during high-temperature irradiation

AU - Vo, Nhon Q.

AU - Chee, See W.

AU - Schwen, Daniel

AU - Zhang, Xuan

AU - Bellon, Pascal

AU - Averback, Robert S.

N1 - Funding Information: This research was supported by the US DoE-BES under Grant DEFG02-05ER46217 and by the NSF under Grant DMR 08-04615 . The work was carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois, which are partially supported by the US Department of Energy under Grants DE-FG02-07ER46453 and DE-FG02-07ER46471 .

PY - 2010/11

Y1 - 2010/11

N2 - The stability of model nanostructured Cu90Mo10 and Cu90W10 alloys during irradiation with 1.8 MeV Kr + at very high temperatures was investigated. Significant coarsening occurs only above ∼0.6Tm in Cu90Mo10 and ∼0.8Tm in Cu90W10 (Tm is the melting point of Cu). Below these temperatures, nanoprecipitates nucleate and grow to a saturation diameter of ∼4 nm. These very small nanoprecipitates confer remarkable microstructural stability, with the Cu grain size remaining below 40 nm. Computer simulations help to explain why these nanostructures are so stable.

AB - The stability of model nanostructured Cu90Mo10 and Cu90W10 alloys during irradiation with 1.8 MeV Kr + at very high temperatures was investigated. Significant coarsening occurs only above ∼0.6Tm in Cu90Mo10 and ∼0.8Tm in Cu90W10 (Tm is the melting point of Cu). Below these temperatures, nanoprecipitates nucleate and grow to a saturation diameter of ∼4 nm. These very small nanoprecipitates confer remarkable microstructural stability, with the Cu grain size remaining below 40 nm. Computer simulations help to explain why these nanostructures are so stable.

KW - Cu alloys

KW - Implantation

KW - Nanostructures

KW - Thin films

UR - https://www.scopus.com/pages/publications/77955981600

U2 - 10.1016/j.scriptamat.2010.07.009

DO - 10.1016/j.scriptamat.2010.07.009

M3 - Article

AN - SCOPUS:77955981600

SN - 1359-6462

VL - 63

SP - 929

EP - 932

JO - Scripta Materialia

JF - Scripta Materialia

IS - 9

ER -

Microstructural stability of nanostructured Cu alloys during high-temperature irradiation

Abstract

Keywords

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