Results 21 to 30 of about 1,787,488 (253)
Metals, 2021 New materials for advanced fission/fusion nuclear facilities must inevitably demonstrate resistance to radiation embrittlement. Thermal and radiation ageing accompanied by stress corrosion cracking are dominant effects that limit the operational ...
Vladimir Slugen +5 more
doaj +1 more source
Advances in Materials, 2021 Thin films of crystalline and porous metal–organic frameworks (MOFs) have great potential in membranes, sensors, and microelectronic chips. While the morphology and crystallinity of MOF films can be evaluated using widely available techniques ...
Timothée Stassin +14 more
semanticscholar +1 more source
Positron lifetime spectroscopy applied to pure sulphur and selenium [PDF]
, 2022 High purity crystalline orthorhombic Sulphur and hexagonal Selenium have been investigated using Positron Lifetime Spectroscopy technique. Annealed for 3 h at 120 °C Selenium lifetime (308(1) ps) has been compared with previous Positron Lifetime ...
Rodríguez López, Álvaro +1 more
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ISIJ International, 2021 Hydrogen-related defects in the metastable austenitic stainless steel 304 were analyzed by positron annihilation lifetime spectroscopy to determine the factors responsible for hydrogen embrittlement.
L. Chiari, A. Komatsu, M. Fujinami
semanticscholar +1 more source
ACS Nano, 2021 Bone is a hierarchical material primarily composed of collagen, water, and mineral that is organized into discrete molecular, nano-, micro-, and macroscale structural components. In contrast to the structural knowledge of the collagen and mineral domains,
T. Ahn +6 more
semanticscholar +1 more source
Tomographic Positron Annihilation Lifetime Spectroscopy [PDF]
Journal of Physics: Conference Series, 2014 Positron annihilation lifetime spectroscopy serves as a perfect tool for studies of open-volume defects in solid materials such as vacancies, vacancy agglomerates, and dislocations. Moreover, structures in porous media can be investigated ranging from 0.3 nm to 30 nm employing the variation of the Positronium lifetime with the pore size. While lifetime
Wagner, A. +6 more
openaire +2 more sources
Positron annihilation studies of Eurofer97/ODS steels after helium ion implantation
Nuclear Materials and Energy, 2023 The paper briefly reviews our positron annihilation studies performed on Eurofer97 steel and its ODS variant, performed in the last about 20 years. Various aspects of radiation environments foreseen for these materials were experimentally simulated via ...
Vladimir Slugen +6 more
doaj +1 more source
Positron annihilation lifetime spectroscopy using fast scintillators and digital electronics [PDF]
Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2019 Positron Annihilation Lifetime Spectroscopy (PALS) is a non-destructive radiological technique widely used in material science studies. PALS typically relies on an analog coincidence measurement setup and allows the estimate of the positron lifetime in a
M. Fang +2 more
semanticscholar +1 more source
Determining the positron lifetime of a material using Positron Annihilation Lifetime Spectroscopy
HNPS Proceedings, 2019 N ...
K. Triantou +4 more
openaire +2 more sources
Neutron irradiated tungsten bulk defect characterization by positron annihilation spectroscopy
Nuclear Materials and Energy, 2021 Positron annihilation spectroscopy was used to evaluate the defects in neutron irradiated tungsten exposed at five different irradiation conditions. The variables in neutron irradiation included temperature, displacements per atom (dpa), and neutron ...
Chase N. Taylor +4 more
doaj +1 more source