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Related papers: Laser-Assisted Deposition of r-B4C Coatings Using …

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This paper focuses on the synthesis of rhombohedral B4C (r-B4C) coatings by CO2 laser-assisted chemical vapour deposition (LCVD), using a dynamic reactive atmosphere of BCl3, H2 and CH4 or C2H4. The influence of the carbon precursor on the…

Materials Science · Physics 2007-05-23 A. J. Silvestre , M. J. Santos , O. Conde

In this work, the successful heteroepitaxial growth of boron carbide (B x C) on 4HSiC(0001) 4{\textdegree} off substrate using chemical vapor deposition (CVD) is reported. Towards this end, a two-step procedure was developed, involving the…

Heteroepitaxial boron carbide (BxC) can be grown on Si face 4H-SiC(0001) using a two-step process involving substrate boridation at 1200$^\circ$C under BCl3 + H2 followed by a chemical vapor deposition (CVD) growth step at 1600$^\circ$C by…

The chemical vapor deposition (CVD) growth of boron carbide (B x C) layers on 4H-SiC, 4{\textdegree}off substrates was studied. Depending on the polarity of the substrate, different results were obtained. On Si face, the direct CVD growth…

Materials Science · Physics 2024-10-11 François Cauwet , Yamina Benamra , Laurent Auvray , Jérôme Andrieux , Gabriel Ferro

Carbides stand out because of their high hardness and wear-resistance. Thus these materials are often discussed for coatings of machine tools etc. Within this work Boron Carbide (B4C) and Carbide (C) thin films were deposited on Si (100)…

Materials Science · Physics 2008-05-06 Timo Koerner , Andreas Heinrich , Bernd Stritzker

Boron carbide thin films were synthesised by laser-assisted chemical vapour deposition (LCVD), using a CO2 laser beam and boron trichloride and methane as precursors. Boron and carbon contents were measured by electron probe microanalysis…

Materials Science · Physics 2007-05-23 O. Conde , A. J. Silvestre , J. C. Oliveira

Laser-assisted chemical vapour deposition (CVD) growth is an attractive mask-less process for growing locally aligned carbon nanotubes (CNTs) in selected places on temperature sensitive substrates. The nature of the localized process…

Chemical Physics · Physics 2017-09-13 Yoeri van de Burgt , Yves Bellouard , Rajesh Mandamparambil

The deposition of boron-doped amorphous carbon thin films on SiO2 substrate was achieved via a focused ion beam-assisted chemical vapor deposition of triphenyl borane (C18H15B) and triphenyl borate (C18H15BO3). The existence of boron in the…

Results on the chemical composition, structure and growth kinetics of titanium nitride (TiN) films deposited on mild steel substrates by pyrolytic laser-induced chemical vapour deposition (LCVD) are presented. Golden coloured lines of TiN…

Materials Science · Physics 2007-05-23 A. J. Silvestre , O. Conde

Micron-thick boron films have been deposited by Pulsed Laser Deposition in vacuum on several substrates at room temperature. The use of high energy pulses (>700 mJ) results in the deposition of smooth coatings with low oxygen uptake even at…

This work reports on the synthesis of chromium (III, IV) oxides films by KrF laser-assisted CVD. Films were deposited onto sapphire substrates at room temperature by photodissociation of Cr(CO)6 in dynamic atmospheres containing oxygen and…

Materials Science · Physics 2009-11-11 P. M. Sousa , A. J. Silvestre , N. Popovici1 , O. Conde

La2Zr2O7 (LZO) formation of bulk powders and of films by Chemical Solution Deposition (CSD) process have been studied using propionates. The treatment involved a one step cycle in the reducing forming gas (Ar-5%H2) to be compatible with…

Boron carbide (B4C) is one of the few materials that is expected to be mostly resilient with respect to the extremely high brilliance of the photon beam generated by free electron lasers (FELs) and is thus of considerable interest for…

Materials Science · Physics 2018-03-06 H. Moreno Fernández , D. Rogler , G. Sauthier , M. Thomasset , R. Dietsch , V. Carlino , E. Pellegrin

Chromia (Cr2O3) has been extensively explored for the purpose of developing widespread industrial applications, owing to the convergence of a variety of mechanical, physical and chemical properties in one single oxide material. Various…

Materials Science · Physics 2012-12-06 P. M. Sousa , A. J. Silvestre , O. Conde

This work investigates the growth of B-C-N layers by chemical vapor deposition using methylamine borane (MeAB) as single-source precursor. MeAB has been synthesized and characterized, paying particular attention to the analysis of its…

The present work deals with the synthesis of crystalline carbon nitride thin films by microwave plasma assisted chemical vapour deposition in N$_2$/CH$_4$ gas mixture. The discharge analysis by optical emission spectroscopy shows that the…

In this master thesis, diamond-like carbon DLC/Cr bilayer systems, with thickness up to 1278 nm were formed on ABS, glass and Si substrates. Substrates surface were prepared by oxygen plasma cleaning process. The chromium thin film, which…

Materials Science · Physics 2015-09-30 Joan Martí-González , Enric Bertran

We report on the fabrication of fractal dendrites by laser induced melting of aluminum alloys. We target boron carbide (B4C) that is one of the most effective radiation-absorbing materials which is characterised by a low coefficient of…

We report on a laser annealing procedure which greatly improves the quality of suspended monolayers of chemical vapor deposition (CVD) grown MoSe2. Annealing with a green laser locally heats the suspended flake to approximately 600 K, which…

Materials Science · Physics 2018-09-18 Christopher Rogers , Dodd Gray , Nate Bogdanowicz , Hideo Mabuchi

Aluminum oxide thin films were deposited on silicon substrates under different deposition conditions using pulse pressure metal organic chemical vapour deposition (PP-MOCVD). The current study investigates into the growth mechanism of the…

Materials Science · Physics 2016-08-23 Hari Murthy , S. S Miya , Susan Krumdieck
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