Zobrazeno 1 - 10
of 426
pro vyhledávání: '"S. Vepřek"'
Autor:
S. Vepřek, V.I. Ivashchenko
Publikováno v:
Thin Solid Films. 545:391-400
We conducted first-principles molecular dynamics calculations of the stability and possible transformations of heterostructures consisting of face-centered-cubic (NaCl)-TiN(001) slabs with one monolayer thick pseudomorphically stabilized interfacial
Publikováno v:
Acta Materialia. 61:4226-4236
Using a combined ab initio density functional theory (DFT) and thermodynamic modeling, we study the stability of a variety of phases and the possible mechanism of the decomposition of the Al 1− x Si x N y solid solution and formation of nanocrystal
Publikováno v:
Journal of Physics and Chemistry of Solids. 71:1175-1178
Earlier measurements of elastic moduli of nc-TiN/a-Si 3 N 4 nanocomposites of different composition and hardness by means of vibrating reed and surface Brillouing scattering, that yield Young’s and shear modulus, as well as the Poisson’s ratio, h
Publikováno v:
Materials Science and Engineering: A. 437:379-387
A high pressure diffraction study, from ambient to 50 GPa, has been carried out on nanocrystalline TiN/amorphous BN nanocomposite materials prepared by plasma chemical vapor deposition. The compressibilities of these materials were found not to be si
Publikováno v:
Surface and Coatings Technology. 200:5645-5654
The measurement of indentation hardness on super-hard nanocomposite coatings: nc-TiN/a-Si3N4 and nc-TiN/a-BN is investigated. Previously reported test methods and analysis techniques are reviewed and critically discussed. The hardness of two represen
Autor:
X. Niu, Xin Wang, S. Vepřek, Shengqiang Ma, Ke-Wei Xu, Dayan Ma, P. Karvankova, Q. Ma, J. Prochazka
Publikováno v:
Surface and Coatings Technology. 194:143-148
Superhard nanocomposite nc-TiN/a-Si 3 N 4 coatings were prepared by reactive magnetron sputtering (RMS) and pulsed dc plasma-induced chemical vapour deposition (PCVD) on stainless steel substrates. The tribological behaviour of these coatings at room
Publikováno v:
Materials Science and Engineering: A. 384:102-116
Based on our generic concept for the design of superhard ( H Vickers ≥ 40 GPa) nanocomposites with a high thermal stability and oxidation resistance we discuss the role of nitrogen pressure and substrate temperature during the deposition and the de
Autor:
Boris Tumanskii, Michael Bendikov, Dmitry Bravo-Zhivotovskii, Yitzhak Apeloig, D. Azinović, S. Vepřek
Publikováno v:
Chemical Physics Letters. 374:257-263
Absorption, ESR and photoluminescence of hexakis(pentamethyldisilyl)disilane [(Me3SiMe2Si)3Si]2 1 were studied. Two branched polysilyl radicals were observed by ESR spectroscopy under UV irradiation of 1. The smaller star radical (Me3SiMe2Si)3Si 2 ha
Publikováno v:
Journal of Luminescence. 97:40-50
UV absorption, UV light induced emission (photoluminescence, PL) and PL-excitation spectra of H8(SiO1.5)8 and alkyl-substituted R8(SiO1.5)8 in solution, powder, and “gel” have been studied systematically. All investigated molecules show similar s
Publikováno v:
Ceramics Science and Technology
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94e2dcf17d7f2465deb7a5f52638e915
https://doi.org/10.1002/9783527631940.ch56
https://doi.org/10.1002/9783527631940.ch56