Nanotribological properties of ultra-thin carbon coatings for magnetic storage devices

Jacoby, B.; Wienss, A.; Ohr, R.; Gradowski, M. von; Hilgers, H.

doi:10.1016/s0257-8972(03)00609-1

Cited by 8 publications

(9 citation statements)

References 20 publications

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“…This question is especially important for the deposition of ultrathin ta-C films as wanted for protective coatings in the data storage industry [70][71][72][73][74]. Lower energy will reduce the thickness of the intermixed layer but the energetic conditions for sp 3 -rich material would be violated.…”

Section: Graded Layers Ultrathin Films Multilayers Nanolaminatesmentioning

confidence: 99%

Metal plasmas for the fabrication of nanostructures

Anders¹

2007

J. Phys. D: Appl. Phys.

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A review is provided covering metal plasma production, the energetic condensation of metal plasmas, and the formation of nanostructures using such plasmas. Plasma production techniques include pulsed laser ablation, filtered cathodic arcs, and various forms of ionized physical vapor deposition, namely magnetron sputtering with ionization of sputtered atoms in radio frequency discharges, self-sputtering, and high power impulse magnetron sputtering. The discussion of energetic condensation focuses on the control of kinetic energy by biasing and also includes considerations of the potential energy and the processes occurring at subplantation and implantation. In the final section on nanostructures, two different approaches are discussed. In the top-down approach, the primary nanostructures are lithographically produced and metal plasma is used to coat or fill trenches and vias. Additionally, multilayers with nanosize periods (nanolaminates) can be produced. In the bottom-up approach, thermodynamic forces are used to fabricate nanocomposites and nanoporous materials by decomposition and dealloying.

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Section: Graded Layers Ultrathin Films Multilayers Nanolaminatesmentioning

confidence: 99%

Metal plasmas for the fabrication of nanostructures

Anders¹

2007

J. Phys. D: Appl. Phys.

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“…The issues of overcoats, including filtered-arc-deposited ta-C, have been discussed in a number of papers and reviews [63,64,65,66,67,68,69]. A significant contribution to the industry's success was the reduction of overcoat thickness down to about 2 nm, with current attempts to reduce this even further.…”

Section: Tetrahedral Amorphous Carbon (Ta-c)mentioning

confidence: 99%

Some Applications of Cathodic Arc Coatings

Anders

2008

Cathodic Arcs

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“…To achieve a storage density of 1 Tbit/inch 2 , a reduction in the magnetic spacing (distance between the magnetic layer on the disk and the pole piece of the readwrite head) between slider and disk is required [1]. Thus, assuming a nominal flying height of 3 nm, and a lubricant thickness of 1 nm, the thickness of the carbon overcoat must be on the order of 1 nm or less.…”

Section: Introductionmentioning

confidence: 99%

“…Tribological performance of carbon films has also been investigated using scanning probe microscopy (SPM) [2]. In addition, ultrasonically excited nano-indentation testing can be used to provide an accelerated wear and fatigue test at a local contact [3].…”

Section: Introductionmentioning

confidence: 99%

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Tribological and Mechanical Characterization of Carbon-Coated Sliders and Disks

Brunner

Talke

2009

Tribol Lett

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Tribological and mechanical properties of carbon-coated sliders and disks manufactured by various vendors were evaluated using atomic force microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and nano-indentation testing in the presence of ultrasonic excitation. The Raman spectra of carbon-coated sliders were found to differ significantly from the Raman spectra of carbon-coated disks. The tribological properties of carboncoated commercially available sliders did not show substantial differences regardless of the manufacturer. The same result was observed for commercially available disks manufactured by different manufacturers. Dynamic nanoindentations in the presence of ultrasonic excitation indicate discontinuities which are correlated to overcoat thickness.

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Nanotribological properties of ultra-thin carbon coatings for magnetic storage devices

Cited by 8 publications

References 20 publications

Metal plasmas for the fabrication of nanostructures

Metal plasmas for the fabrication of nanostructures

Some Applications of Cathodic Arc Coatings

Tribological and Mechanical Characterization of Carbon-Coated Sliders and Disks

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