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Biased Deposition of Nanocrystalline Be(1-x)Cu(x) Coatings.

DE200415007534

Publication Date	2000
Personal Author	Hankowski, A.
Page Count	14
Abstract	Coatings of Be(sub 1-x)Cu(sub x) are prepared by magnetron sputter deposition onto spherical polymer mandrels. The application of an applied bias during deposition refines the columnar morphology of the coating and surface finish to the nanoscale. A mechanical testing technique is developed to load the thin-walled spherical capsules under uniaxial tension at constant strain to fracture. The bias-deposited material exhibits an increase in strength by a factor of three or more following a Hall-Petch type relationship with surface roughness.
Keywords	Coatings Depsoition Bias Mechanical tests Strains Microstructure Sputtering Roughness Morphology Polymers
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200426

Biased Deposition of Nanocrystalline Be(1-x)Cu(x) Coatings.

Biased Deposition of Nanocrystalline Be(1-x)Cu(x) Coatings.
DE200415007534

Publication Date	2000
Personal Author	Hankowski, A.
Page Count	14
Abstract	Coatings of Be(sub 1-x)Cu(sub x) are prepared by magnetron sputter deposition onto spherical polymer mandrels. The application of an applied bias during deposition refines the columnar morphology of the coating and surface finish to the nanoscale. A mechanical testing technique is developed to load the thin-walled spherical capsules under uniaxial tension at constant strain to fracture. The bias-deposited material exhibits an increase in strength by a factor of three or more following a Hall-Petch type relationship with surface roughness.
Keywords	Coatings Depsoition Bias Mechanical tests Strains Microstructure Sputtering Roughness Morphology Polymers
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200426