Results 91 to 100 of about 55,131 (281)

Y2O3 ve Yb+3:Y2O3 partiküllerinin üretimi ve karakterizasyonu

open access: yes, 2021
In the last decades the development in nanotechnology was going in several directions: Development of the new nanomaterials, testing their characteristics, search for their new implementation and testing of the various synthesis methods in order to achieve the target quality, characteristics and quantity of the nanomaterial.
openaire   +1 more source

Thermochromic Radiative Cooling Coatings with Robust Superhydrophobicity for Energy‐Efficient Buildings

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A scalable, color‐adaptive radiative cooling coating is developed to enable dynamic spectral regulation via a reversible thermochromic transition at ~45 °C and a high solar reflectance of 91.7%. The coating achieves 4.44 °C outdoor sub‐ambient cooling while providing robust superhydrophobicity and environmental durability through its micro/nano ...
Ziqi Li   +8 more
wiley   +1 more source

Compatibility of grain-stabilized platinum with candidate propellants for resistojets [PDF]

open access: yes
Resistojets are candidates for space station auxiliary propulsion, and should be characterized by both long life and multipropellant operations, requirements limited by available materials.
Grisnik, S. P., Whalen, M. V.
core   +1 more source

Studies of cracking behavior in melt-processed YBCO bulk superconductors [PDF]

open access: yes, 2006
An important phenomenon in bulk superconductors fabricated by top-seeded-melt growth (TSMG) is the formation of cracks due to the inherent brittleness of the YBa2Cu3O7-δ (Y-123) phase matrix.
S Haindl   +15 more
core   +1 more source

Organic–Inorganic Composite Nanofibers Based on YSZ Nanofibers Anchored PANI/SnS2 Heterojunction for Flexible Room Temperature NO2 Sensor

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel organic–inorganic YSZ@PANI/SnS2 composite nanofiber film was prepared via an in‐situ construction strategy of a PANI interfacial layer. The biomimetic "branch‐leaf" structure effectively disperses and releases stress and energy, while accelerating gas diffusion/transport and providing abundant active sites.
Han Zhang   +7 more
wiley   +1 more source

Effect of Zr doping on structure and properties of Y2O3/diamond films

open access: yesCailiao gongcheng
Element doping can alter the structure of the base material, thereby enhancing its performance. Undoped and Zr-doped Y2O3 films are deposited on single-crystal silicon and polycrystalline CVD diamond by magnetron sputtering to investigate the composition,
CAO Shuqin   +5 more
doaj   +1 more source

Lanthanide‐Doped NaGdF4 Nanoparticles as Versatile Luminescent Labels for Cathodoluminescence Mapping

open access: yesphysica status solidi (b), EarlyView.
This study presents a synthesis method for lanthanide‐doped NaGdF4 particles in an aqueous environment. Clearly distinct cathodoluminescence (CL) spectra were observed for europium‐ and thulium‐doped nanoparticles, stable for up to 100 s of excitation time.
Jörgen Jungclaus   +5 more
wiley   +1 more source

Oxide reinforced Ni base composite prepared by spark plasma sintering

open access: yesMATEC Web of Conferences, 2017
Y2O3 is a favourable reinforcement for the oxide dispersion strengthened superalloy due to its good high temperature stability, excellent strength and large elastic modulus. In this work, Y2O3 is introduced into the K4169 superalloy aiming to improve its
Zhu Guoliang   +8 more
doaj   +1 more source

Potentialities of the sol-gel route to develop cathode and electrolyte thick layers Application to SOFC systems [PDF]

open access: yes, 2008
In this work, we report the potential of sol–gel process to prepare cathode and electrolyte thin and thick layers on anodic NiO-YSZ supports which were also made from powders prepared by sol–gel route.
Ansart, Florence   +5 more
core   +4 more sources

Advances in Gate Dielectrics for 2D Electronics

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
This review discusses advanced gate dielectric integration for 2D electronic devices, including layered and nonlayered dielectric materials, while highlighting strategies such as seed‐assisted ALD, transfer methods, and in situ oxidation. By focusing on interface engineering and materials innovation, new routes for scalable, high‐performance 2D ...
Moon‐Chul Jung   +2 more
wiley   +1 more source

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