Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Ion N. Voicu"'
Autor:
S. Ilina, Ion N. Voicu, I. Dinca, Ana Stan, Dan Donescu, Horia Paven, C. Ban, L. Dumitrache, L. Gavrila
Publikováno v:
Applied Mechanics and Materials. 146:160-169
The paper deals with the rheological properties of epoxy resin additivated with organically modified montmorillonites, carbon nanotubes and nanocarbon. The paper also presents the influence of nanoadditives over composites mechanical properties. The
Autor:
Claudiu-Fleaca Teodor, Florian Dumitrache, Ion Morjan, Ion N. Voicu, I. Sandu, L. Gavrila-Florescu, Mirela Brasoveanu
Publikováno v:
Thin Solid Films. 519:4128-4131
Optical transparent and electrical conductive (PMMA)/nanocarbon composite films can be prepared through the infiltration of the polymer between the carbon aggregates of a preformed percolation cluster. This cluster is prepared by Langmuir–Blodgett
Publikováno v:
Journal of Plastic Film & Sheeting. 26:71-81
Carbon-composed resistors, thick film resistors, and chip resistors are commonly used in Electronics. They are prepared by mixing carbon-based materials with metal oxides or polymers and present not only some clear advantages such as low cost and eas
Autor:
Gabriel Prodan, I. Soare, I. Morjan, Claudiu Fleaca, L. Gavrila Florescu, E. Popovici, M. Scarisoreanu, Ion Sandu, Ion N. Voicu
Publikováno v:
Applied Surface Science. 255:5511-5514
Based on a high temperature hydrocarbon/heterogeneous atoms system of well-established composition, the formation of carbon nanostructures by laser-induced pyrolysis is related to the presence of heteroatoms in the reactants. In this paper, the goal
Autor:
Florian Dumitrache, I. Sandu, I. Morjan, Claudiu Fleaca, Ion N. Voicu, R. E. Morjan, E. Popovici, I. Soare, Rodica Alexandrescu, L. Gavrila-Florescu, Gabriel Prodan
Publikováno v:
Infrared Physics & Technology. 51:186-197
The synthesis of carbon nanotubes (CNTs) by catalytic laser-induced chemical vapor deposition (C-LCVD) was investigated. C-LCVD uses both ex situ synthesized catalyst nanoparticles and the controlled decomposition of gas-phase hydrocarbon mixtures. A
Autor:
Egbert Figgemeier, E. Popovici, Florian Dumitrache, Eugeniu Vasile, I. Sandu, M. Scarisoreanu, I. Morjan, L. Gavrila-Florescu, G. Prodan, R. Birjega, I. Soare, Rodica Alexandrescu, Ion N. Voicu
Publikováno v:
Thin Solid Films. 515:8438-8445
Undoped and Fe-doped TiO2 nanopowders with Fe/Ti (atomic ratio) precursor concentration ranging from 7% up to 25% have been prepared by the IR laser pyrolysis technique. A sensitized mixture of TiCl4 and Fe (CO)5 was used as titanium and iron precurs
Autor:
L. Gavrila-Florescu, Ion Morjan, C. Serghie, V. Stefan, E. Popovici, Ion Sandu, I. Dinca, Gabriel Prodan, L. Dumitrache, Sever Serban, Adriana Stefan, Ion N. Voicu, Dan Donescu, Cristina Lavinia Nistor, Victor Ciupina
Publikováno v:
Materials Science and Engineering: C. 27:1010-1014
Carbon nanostructures with different morphologies to be used as reinforcing agent in hybrid polymer–carbon nanocomposites were prepared by CO 2 laser pyrolysis of a hydrocarbon-based mixture. Investigations on the epoxy-resin/nanocarbon composites
Publikováno v:
Applied Surface Science. 253:7729-7732
The carbon nanoparticles existing in environment are an important factor on healthy either by their toxicity or by interaction with pathogen microorganisms, which can make them more resistant or induce a specific mutagenesis. To understand the role o
Autor:
M. Scarisoreanu, Claudiu Fleaca, Gabriel Prodan, L. Gavrila-Florescu, R. Birjega, Ion N. Voicu, Rodica Alexandrescu, E. Popovici, O. Cretu, Egbert Figgemeier, Morjan, Victor Ciupina, I. Soare
Publikováno v:
Applied Surface Science. 253:7908-7911
The preparation of TiO2 nanoparticles by CO2 laser pyrolysis of TiCl4 (vapor)-based gas mixtures was investigated as a function of laser power and influence of the oxidizer. Increased crystallinity and crystallite dimensions as well as increase of th
Autor:
Florian Dumitrache, Gabriel Prodan, Ion N. Voicu, Ion Morjan, M. Scarisoreanu, E. Popovici, I. Soare, Rodica Alexandrescu, Ion Sandu, R. E. Morjan, L. Gavrila-Florescu
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 37:26-33
We report about the synthesis of carbon nanotubes by catalytic LCVD (C-LCVD), using a CW CO 2 laser and alternatively, C 2 H 2 /C 2 H 4 /NH 3 and C 2 H 2 /C 2 H 4 -containing gas mixtures. Different core–shell Fe–C nanocomposites (as synthesized