Results 21 to 30 of about 58,492 (234)
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
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
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
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
Identification of lead vacancy defects in lead halide perovskites
Nature Communications, 2021 Point defects compromise the electronic performance of hybrid perovskites, yet no experimental identifications have been reported. Here, the authors, for the first time, identify lead monovacancy defect in MAPbI3 using positron annihilation lifetime ...
David J. Keeble +7 more
doaj +1 more source
Characterization of point defects in CdTe by positron annihilation spectroscopy [PDF]
, 2016 Positron lifetime measurements on CdTe 0.15 % Zn-doped by weight are presented, trapping to monovacancy defects is observed. At low temperatures localization at shallow binding energy positron traps dominates.
Abdel-Hady, E.E. +3 more
core +2 more sources
A single shot gamma-induced positron spectroscopy based on laser wakefield accelerator
AIP Advances, 2021 Single shot gamma-induced positron annihilation spectroscopy (GiPS) based on a laser wakefield accelerator is proposed. In this spectroscopy, a large number of gamma rays generated by laser-wakefield accelerated electrons are injected into a sample in a ...
Yonghong Yan +9 more
doaj +1 more source
Journal of Materials Science, 2018 The design of specific material properties of aluminum alloys demands for a detailed understanding of clustering and precipitation processes occurring during heat treatments.
L. Resch +6 more
semanticscholar +1 more source
Identifying vacancy complexes in compound semiconductors with positron annihilation spectroscopy: a case study of InN [PDF]
, 2011 We present a comprehensive study of vacancy and vacancy-impurity complexes in InN combining positron annihilation spectroscopy and ab-initio calculations.
Christian Rauch +4 more
core +2 more sources