Results 41 to 50 of about 3,015,797 (333)
Hafnium oxidation at high temperature in steam
Journal of Nuclear Materials, 2021 To assess the potential impact of using hafnium as absorber material in LWRs in high temperature accidental situations, the oxidation behavior of hafnium was studied up to 1400 C, i.e. at temperature conditions relevant to severe accidents. Different sample geometries were tested and oxidized in steam/argon mixtures, either in a furnace or in a ...
S. Guilbert-Banti +5 more
openaire +4 more sources
Structural and Electrical Comparison of Si and Zr Doped Hafnium Oxide Thin Films and Integrated FeFETs Utilizing Transmission Kikuchi Diffraction. [PDF]
Nanomaterials (Basel), 2020 The microstructure of ferroelectric hafnium oxide plays a vital role for its application, e.g., non-volatile memories. In this study, transmission Kikuchi diffraction and scanning transmission electron microscopy STEM techniques are used to compare the ...
Lederer M +11 more
europepmc +2 more sources
Crystals, 2021 Effective charge compensation of europium in hafnium oxide nanoparticles was achieved at low temperature, allowing high doping incorporation (up to 6 at.%) and enhanced luminescence.
Xavier H. Guichard +2 more
doaj +1 more source
Effect of Yttrium Oxide Impurities on the Structure and Properties of Metallic Hafnium
Фізика і хімія твердого тіла, 2017 The influence of yttrium oxide impurity content of 0 to 0.4 wt.% on the structure and microhardness metal hafniuminvestigated. It is shown that grain size decreases and the Microhardness of hafnium increases monotonically with increasing content of ...
S. V. Chornobuk +2 more
doaj +1 more source
Mechanisms of High Temperature Degradation of Thermal Barrier Coatings. [PDF]
, 2009 Thermal barrier coatings (TBCs) are crucial for increasing the turbine inlet temperature (and hence efficiency) of gas turbine engines. The thesis describes PhD research aimed at improving understanding of the thermal cycling failure mechanisms of ...
Wu, Rudder T.C., Wu, Rudder T.C.
core +1 more source
Investigations of Zr(IV) in LiF-CaF2: stability with oxide ions and electroreduction pathway on inert and reactive electrodes [PDF]
, 2013 In this work, a detailed electrochemical study of the molten LiF-CaF2-ZrF4 system is provided in the 810-920°C temperature range, allowing the determination of the reduction potential, the diffusion coefficient and the reduction mechanism of dissolved Zr(
Cassayre, Laurent +4 more
core +4 more sources
Nature Communications, 2021 Here, three-dimensional hafnium oxide and two-dimensional hexagonal boron nitride are integrated in the insulating section of double-layer graphene optical modulators, leading to a maximum bandwidth of 39 GHz and enhanced modulation efficiency.
Hitesh Agarwal +10 more
doaj +1 more source
How ligands affect resistive switching in solution-processed HfO2 nanoparticle assemblies [PDF]
, 2018 Advancement of resistive random access memory (ReRAM) requires fully understanding the various complex, defect-mediated transport mechanisms to further improve performance.
Wang, Jiaying +6 more
core +2 more sources
IEEE Transactions on Nuclear Science, 2021 Hafnium oxide acts as a functional dielectric in a variety of traditional and emerging nonvolatile memory technologies. To investigate the effect of heavy ion irradiation on its crystalline structure, highly textured hafnium oxide films were irradiated ...
T. Vogel +11 more
semanticscholar +1 more source
Frontiers in Neuroscience, 2020 The performance of electrode arrays insulated by low-temperature atomic layer deposited (ALD) titanium dioxide (TiO2) or hafnium dioxide (HfO2) for culture of electrogenic cells and for recording of extracellular action potentials is investigated.
Michele Dollt +7 more
doaj +1 more source