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Akademický článek
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Autor:
Leandru-Gheorghe Bujoreanu, E. Matcovschi, Bogdan Pricop, N. M. Lohan, Mihai Popa, Bogdan Istrate, Ramona Cimpoesu, Nicanor Cimpoesu
Publikováno v:
Journal of Materials Engineering and Performance. 28:7273-7280
In the present paper, a Ni-37Ti-15Ta (wt.%) shape memory alloy was analyzed in as-cast and hot-rolled conditions, by differential scanning calorimetry, scanning electron microscopy coupled with energy-dispersive spectroscopy, x-ray diffraction and el
Autor:
Burak Özkal, Elena Mihalache, N. M. Lohan, Bogdan Pricop, R. I. Comăneci, Nicanor Cimpoesu, M.-G. Suru, Leandru-Gheorghe Bujoreanu
Publikováno v:
Metal Science and Heat Treatment. 60:471-477
Variation of the sizes and chemical compositions of martensite plates in the structure of powder-metallurgy shape memory alloy Fe – 14 wt.% Mn – 6 wt.% Si – 9 wt.% Cr – 5 wt.% Ni is studied. Apart of the specimens is fabricated from mechanica
Publikováno v:
MATEC Web of Conferences, Vol 343, p 10012 (2021)
It is known the fact that in both the Member States of the European Union and the United States, the provision of Personal Protective Equipment (PPE) to workers who are carrying out their activity in different sectors is done in accordance with exist
Autor:
N. M. Lohan, Justina Georgiana Motaș, Gabriela Lisa, Dumitru Nedelcu, Mariana Diaconu, Mihai Glod, Simona-Nicoleta Mazurchevici
Publikováno v:
Polymers
Volume 13
Issue 17
Polymers, Vol 13, Iss 2932, p 2932 (2021)
Volume 13
Issue 17
Polymers, Vol 13, Iss 2932, p 2932 (2021)
Due to the pressing problems of today’s world, regarding both the finding of new, environmentally friendly materials which have the potential to replace classic ones, and the need to limit the accelerated spread of bacteria in hospitals, offices an
Publikováno v:
Materials Science Forum. 907:8-13
The paper introduces the possibility to replace the “wet alloy”, used for sprinkler-triggering within automatic fire protection systems, with a shape memory alloy (SMA) type. The idea of the present application is based on the thermoelastic rever
Publikováno v:
Materials Science Forum. 907:180-187
Cu-Zn-Al shape memory alloys (SMAs) were analysed in two different processing states: (i) hot-forged and (ii) hot-rolled. Both hot-forged and hot-rolled specimens were cut into lamellar configuration, before being homogenized (1073 K/ 18 ks/ water) a
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 131:215-224
The thermally induced reversible diffusionless martensitic transformation, that governs the mechanism of shape memory alloys (SMAs), can be conveniently illustrated, on differential scanning calorimetry (DSC) curves, by a close variation loop of heat
Publikováno v:
Composites Part B: Engineering. 103:84-89
Liquid wood (LW) Arboform® is a novel bio-polymer class of materials consisting in various amounts of lignin, natural fibres, and bio-based additives being a fully biodegradable composite. The full acceptance of LW by industry depends on thermo-mech