Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ion Dragoș Uțu"'
Publikováno v:
Lubricants, Vol 12, Iss 10, p 330 (2024)
Cavitation erosion, as a mechanical effect of destruction, constitutes a complex and critical problem that affects the safety and efficiency of the functioning of engineering components specific to many fields of work, the most well-known being prope
Externí odkaz:
https://doaj.org/article/09e60c8422ee4b3a8c484230d0273c39
Publikováno v:
Materials, Vol 17, Iss 17, p 4180 (2024)
Laser beam remelting is a relatively simple and highly effective technique for the physical modification of surfaces to improve resistance to cavitation erosion. In this study, we investigated the effect of laser remelting on the surface of cast stai
Externí odkaz:
https://doaj.org/article/8d786dfe13d0492d9fa4d5d54e4cf1d0
Autor:
Roxana Muntean, Mihai Brîndușoiu, Dragoș Buzdugan, Nicoleta Sorina Nemeș, Andrea Kellenberger, Ion Dragoș Uțu
Publikováno v:
Materials, Vol 16, Iss 4, p 1410 (2023)
In order to modify the surface of light metals and alloys, plasma electrolytic oxidation (PEO) is a useful electrochemical technique. During the oxidation process, by applying a positive high voltage greater than the dielectric breakdown value of the
Externí odkaz:
https://doaj.org/article/e9ad3f81037d4641bd1dfd06bd107c63
Selected, peer reviewed papers from the 6th International Conference Advanced Materials and Structures, October 16-17, 2015, Timişoara, Romania
Publikováno v:
Crystals, Vol 12, Iss 6, p 762 (2022)
Tape brazing constitutes a cost-effective alternative surface protection technology for complex-shaped surfaces. The study explores the characteristics of high-temperature brazed coatings using a cobalt-based powder deposited on a stainless-steel sub
Externí odkaz:
https://doaj.org/article/d0187ed97b11471193e88f19012c080f
Publikováno v:
Applied Sciences, Vol 12, Iss 9, p 4346 (2022)
Color preservation of esthetic dental restorative materials in the oral environment represents, besides longevity, a concern, and there is still limited knowledge related to the effect of aging on the optical behavior of resin matrix ceramics. The st
Externí odkaz:
https://doaj.org/article/2cdd402ffa054737a2a476cf13b225fe
Autor:
Roxana-Diana Vasiliu, Sorin- Daniel Porojan, Mihaela- Ionela Bîrdeanu, Ion-Dragoș Uțu, Liliana Porojan
Publikováno v:
Crystals, Vol 10, Iss 3, p 160 (2020)
Dental ceramic restorations are widely used in restorative dentistry. However, these restorations can be affected once cemented in the oral cavity by several factors. How can conventional surface treatments, such as glazing and mechanical polishing,
Externí odkaz:
https://doaj.org/article/d07b38cf7a22486f938e8cece344d758
Publikováno v:
Materials; Volume 16; Issue 8; Pages: 3206
Nickel-based superalloys are frequently used to manufacture the components that operate under cavitation erosion conditions, such as aircraft gas turbine construction, nuclear power systems, steam turbine power plants, and chemical and petrochemical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e966c5723aeb9e43fe4f083fbb5de67
https://doi.org/10.3390/ma16083206
https://doi.org/10.3390/ma16083206
Autor:
Ion Mitelea, Ilare Bordeașu, Florin Frant, Ion-Dragoș Uțu, Corneliu Marius Crăciunescu, Cristian Ghera
Publikováno v:
Materials; Volume 16; Issue 7; Pages: 2563
Components made of aluminum alloys operating under cavitation erosion conditions have low performance and therefore a reduced lifetime. The degradation of these components is a consequence of the repetitive implosion of cavitation bubbles adjacent to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a20de596cb11443acb20b9cc3e597d65
https://doi.org/10.3390/ma16072563
https://doi.org/10.3390/ma16072563
Autor:
Flavia Roxana Toma, Mihaela Ionela Bîrdeanu, Ion-Dragoș Uțu, Roxana Diana Vasiliu, Lavinia Cristina Moleriu, Liliana Porojan
Publikováno v:
Materials; Volume 15; Issue 10; Pages: 3606
(1) Background: The purpose of this study was to evaluate the differences in terms of surface characteristics (roughness, topography, microhardness) among layers for multi-layered high translucent and super-high translucent zirconia and the influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::218903d0ea69759f139c9308b518cfaf