Interfacial wetting and percolation threshold in ultrathin Ni/C multilayer films

Borchers, C.; Ricardo, Paulo; Michaelsen, C.

doi:10.1080/01418610008212143

Cited by 15 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, there is a critical thickness at about 2.0 nm for Ni layer, below which the interface width increases rapidly from about 0.45 nm to 0.81 nm. This critical thickness of Ni layers is consistent with the results reported by Borchers et al 16,. where the reflectivity of Ni/C multilayer dropped rapidly at a periodic thickness of 4.0 nm with d Ni = 2.0 nm.…”

Section: Resultssupporting

confidence: 93%

“…This fact has also been found by Borchers et al . in the magnetron sputtered Ni/C graded multilayers16.…”

Section: Resultsmentioning

confidence: 99%

“…5. During the growth of Ni on an amorphous C layer, the Ni layer begins with island formations induced by the nonwetting condition16. No obvious formation of Ni-on-C or C-on-Ni interlayers was found in the TEM images, which is consistent with the prediction of a limited solid solubility of C in Ni and zero solubility of Ni in C in the Ni-C phase diagram27 though these Ni/C multilayers are formed in a non-equilibrium process.…”

Section: Discussionmentioning

confidence: 99%

“…When the periodic thickness decreases, the interface width including both contributions from interfacial roughness and interdiffusion may be accordingly changed, which has strong effects on the performances of multilayer mirrors, especially when the layers become thinner. For Ni/C multilayers, it has been observed that the reflectivity decreased dramatically when the periodic thickness is less than 4 nm, which is probably caused by the crystallization of Ni at a critical thickness of 2 nm and the interdiffusion between the adjacent layers of nickel and carbon151617. The critical thickness for Ni crystallization has been found to be reduced by other deposition techniques such as PLD and IBSD1819, since the deposited particles with higher kinetic energy can smooth the interfaces of Ni/C multilayers20.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Microstructure evolution with varied layer thickness in magnetron-sputtered Ni/C multilayer films

Peng

Huang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

The microstructure evolution of magnetron-sputtered Ni/C multilayers was investigated by varying the Ni and C layer thickness in the region of a few nanometers. For the samples having 2.6-nm-thick C layers, the interface width increases from 0.37 to 0.81 nm as the Ni layer thickness decreases from 4.3 to 1.3 nm. Especially for the samples with Ni layers less than 2.0 nm, the interface width changes significantly due to the discontinuously distributed Ni crystallites. For the samples having 2.8-nm-thick Ni layers, the interface width increases from 0.37 to 0.59 nm when the C layer thickness decreases from 4.3 to 0.7 nm. The evolution of interface microstructures with varied Ni and C layers is explained based on a proposed simple growth model of Ni and C layers.

show abstract

Section: Resultssupporting

confidence: 93%

“…This fact has also been found by Borchers et al . in the magnetron sputtered Ni/C graded multilayers16.…”

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Microstructure evolution with varied layer thickness in magnetron-sputtered Ni/C multilayer films

Peng

Huang

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The nickel carbide could be found at catalytic reactions [4], carbon nanowhiskers and nanotubes [5]. The Ni3C carbide is a metastable compound obtained by different techniques, including nonequilibrium methods, such as carbon ion implantation into Ni [6], diffusion reactions of nickel and amorphous carbon films [7,8], chemical synthesis [9], and plasma deposition [10]. Besides, the Ni1 -xCx blends (x = 0.10-0.90) were first obtained by reaction milling of elemental powders of Ni and carbon black by T. Tanaka et al in [11].…”

Section: Introductionmentioning

confidence: 99%

Features of cubic Ni3C and NiC carbides obtained by HT-HP sintering

Nakonechna

Stratiіchuk

Kuryliuk

et al. 2022

Phys. Chem. Solid St.

View full text Add to dashboard Cite

In this work NiC carbides were manufactured by HP-HT sintering of mechanically alloyed charges of the elemental Ni–carbon nanotubes (CNT) or Ni–Graphite. Structural features of the materials obtained were characterized by X-ray diffraction and scanning electron microscopy. X-ray diffraction studies have revealed that the crystal lattice of nickel carbide obtained from mechanically alloyed Ni–CNT charge is supplemented with additional Carbon atoms from the graphite shell of the high-pressure cell at HT-HP sintering. On the other hand, nickel carbide fabricated from mechanically alloyed Ni–Graphite charge retains its composition. It is shown that materials studied in this work demonstrate an advanced value of microhardness (up to 7 GPa).

show abstract