Zobrazeno 1 - 10
of 23
pro vyhledávání: '"C. V. Cojocaru"'
Publikováno v:
Thermal Spray 2021: Proceedings from the International Thermal Spray Conference.
MCrAlX powder compositions (M=Ni,Co and X= Y, Hf, Si or combination) are often thermally sprayed (TS) via vacuum plasma spray (VPS), low pressure plasma spray (LPPS) or high velocity oxy-fuel (HVOF) to produce high temperature oxidation and hot corro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86b9672451e37725c44df415cdf5b7cf
https://doi.org/10.31399/asm.cp.itsc2021p0036
https://doi.org/10.31399/asm.cp.itsc2021p0036
Dimensional Analysis and Laser-Ultrasonic Inspection of Cold Spray Additive Manufacturing Components
Autor:
C. V. Cojocaru, Maxime Rivard, M. Martin, Jonathan Boisvert, Guy Lamouche, P. Vo, Christophe Bescond, Daniel Lévesque, Eric Irissou
Publikováno v:
Materials Forming, Machining and Tribology ISBN: 9783030427559
The use of cold spray (CS) in metal additive manufacturing (AM) offers well recognized advantages with typical commercial drivers being a rapid build rate, low process temperature and wide range of usable alloys. For cold spray, technology-specific c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::936fa35df7d10f04966885f65b2defbf
https://doi.org/10.1007/978-3-030-42756-6_8
https://doi.org/10.1007/978-3-030-42756-6_8
Publikováno v:
31st International Symposium on Shock Waves 2 ISBN: 9783319910161
A reactive hot spot concept was investigated for fine fragmentation of a structural reactive material (SRM) solid under explosive loading to augment air blast through rapid reaction of fine SRM fragments. Micro-sized MoO3 particles were distributed i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75486693cd1a57b9b2a7e4df73367f61
https://doi.org/10.1007/978-3-319-91017-8_3
https://doi.org/10.1007/978-3-319-91017-8_3
Structural reactive material (SRM) is consolidated from a fine granular mixture of reactive materials towards the mixture theoretical maximum density with little porosity, thus bearing both high energy density and mechanical strength. A reactive hot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53d50aea66aa49c5e7e6762023a27ca6
https://doi.org/10.1002/prep.201700065
https://doi.org/10.1002/prep.201700065
A concept of reactive hot spots intruded in a thick, structural reactive material casing was investigated to generate fine fragments for efficient energy release from casing material under explosive loading. This was achieved through distributing mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96551a08edd30e4e19e41dcdec599314
https://doi.org/10.1063/1.4971532
https://doi.org/10.1063/1.4971532
Autor:
C. V. Cojocaru, Rogerio S. Lima, E. Garcia, J. Mesquita-Guimarães, María Isabel Osendi, Pilar Miranzo
Publikováno v:
Surface and Coatings Technology. 209:103-109
Plasma sprayed mullite/YSZ graded coatings on SiC substrates were examined as environmental barrier coatings (EBCs). Several coating systems with various layer arrangements were subjected to thermal aging at 1300 °C in cycling (50 and 100 cycles, i.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62c45ba03ca182f59629061ec78666dd
https://doi.org/10.1016/j.surfcoat.2012.08.044
https://doi.org/10.1016/j.surfcoat.2012.08.044
Autor:
Rogerio S. Lima, Pilar Miranzo, Y. Wang, J. Mesquita-Guimarães, C. V. Cojocaru, Christian Moreau, María Isabel Osendi, E. Garcia
Publikováno v:
Journal of Thermal Spray Technology. 20:83-91
Mullite-based systems have been considered as environmental barrier coatings (EBCs) for high temperature protection of Si-based ceramic (Si₃ N₄, SiC) substrates against water vapor corrosion, for application in forthcoming turbine engines. Graded
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00ada81ba6b16e7388ae755d3f871f75
https://doi.org/10.1007/s11666-010-9589-6
https://doi.org/10.1007/s11666-010-9589-6
Publikováno v:
Applied Surface Science. 256:4777-4783
We present studies on parallel nanoscale patterning of piezoelectrics/ferroelectrics via deposition through a nanostencil. Unlike other processes reported for oxide nanostructuring, we selectively deposit the material, directly, by interposing a nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c38c71e93667b0e499efce1e8840176
https://doi.org/10.1016/j.apsusc.2010.01.103
https://doi.org/10.1016/j.apsusc.2010.01.103
Publikováno v:
Journal of Physics: Conference Series. 59:636-639
Usually ferroelectric thin films are deposited by pulsed laser deposition (PLD) at elevated substrate temperatures, in order to obtain a good crystalline quality. Here we report the fabrication of ferroelectric BaTiO3 and BiFeO3 structures by room-te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c72b2ba7a81009df8b19c96f657825a
https://doi.org/10.1088/1742-6596/59/1/134
https://doi.org/10.1088/1742-6596/59/1/134
Autor:
François Normandin, Catalin Harnagea, Riad Nechache, C V Cojocaru, Teodor Veres, O. Gautreau, Alain Pignolet
Publikováno v:
Integrated Ferroelectrics. 83:1-12
Bismuth ferrite BiFeO3 is a multiferroic material, exhibiting both electric and magnetic ordering at room temperature, properties which make it a promising material for use in novel device fabrication. We report here the successful fabrication of BiF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c77ae761a4769e454b5dedbeb54338f6
https://doi.org/10.1080/10584580600949022
https://doi.org/10.1080/10584580600949022