Ion plating discharges: evidence of cluster formation during metal evaporation
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Davison, A
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Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Davison, A
[1
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Wilson, AD
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Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Wilson, AD
[1
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Avelar-Batista, JC
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Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Avelar-Batista, JC
[1
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Leyland, A
[1
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Matthews, A
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Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Matthews, A
[1
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Fancey, KS
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Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Fancey, KS
[1
]
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[1] Univ Hull, Dept Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Previous work has demonstrated the possible presence of metal clusters in ion plating discharges that utilise evaporative sources. In the present study, cathode sheath thickness measurements under ion plating conditions and mass spectroscopy studies (up to 2500 a.m.u.) of gas evaporation have provided further evidence of metal clusters in the vapour phase. The view that these clusters nucleate and grow by vapour cooling, through metal atoms losing energy by collisions with gas atoms, is supported by the following observations: (i) for evaporation at a fixed gas pressure, the abundance of clusters seems to be enhanced if argon is used instead of neon, indicating the greater cooling effect from a gas with larger atomic mass; (ii) cluster detection rate appears to be increased with increasing gas pressure, and this can be attributed to higher collision frequencies leading to enhanced cooling. (C) 2002 Elsevier Science B.V. All rights reserved.
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Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Wilson, AD
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Avelar-Batista, JC
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Avelar-Batista, JC
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Dowey, SJ
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Dowey, SJ
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Robson, J
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Robson, J
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Leyland, A
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Matthews, A
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Matthews, A
;
Fancey, KS
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
机构:
Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Wilson, AD
;
Avelar-Batista, JC
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h-index: 0
机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Avelar-Batista, JC
;
Dowey, SJ
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h-index: 0
机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Dowey, SJ
;
Robson, J
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机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Robson, J
;
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Leyland, A
;
Matthews, A
论文数: 0引用数: 0
h-index: 0
机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England
Matthews, A
;
Fancey, KS
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h-index: 0
机构:Univ Hull, Sch Engn, Res Ctr Surface Engn, Kingston Upon Hull HU6 7RX, N Humberside, England