In the present work, authors focused on verifying structural and mechanical properties of Oxide Dispersed Strengthening (ODS) steels strengthened by three different types refractory oxides submitted to ion-irradiation. Three materials with Y2O3 or Al2O3 ZrO2 were produced alloying Spark Plasma Sintering technique. Specimens have been high energy Ar-ion irradiation at room temperature fluences. ...

Using 3D imaging with time-of-flight secondary ion mass spectrometry (ToF-SIMS) complemented by grazing-incidence X-ray diffraction (GIXRD), we spatially resolve changes in both the composition and structure of CH3NH3I3-xClx perovskite films on conducting polymer substrates at different annealing stages, in particular, before and after complete perovskite crystallization. The early stage of ann...

Submitted for the MAR08 Meeting of The American Physical Society Thermodynamic potentials in closed and open nanocrystalline systems: Si-Ge islands on Si(001). MARINA S. LEITE, Brazilian Synchrotron Light Source, Instituto de Fisica Gleb Wataghin UNICAMP, ANGELO MALACHIAS, Max-Planck Insitute for Solid State Research, STEFAN W. KYCIA, University of Guelph, TED I. KAMINS, R. STANLEY WILLIAMS, He...

Neutron reflectometry has been successfully used to study adsorption on a stainless steel surface by means of depositing a thin steel film on silicon. The film was characterized using XPS (X-ray photoelectron spectroscopy), TOF-SIMS (time-of-flight secondary ion mass spectrometry), and GIXRD (grazing incidence X-ray diffraction), demonstrating the retention both of the austenitic phase and of t...

Hafnium oxide (HfO2) high-k thin films have been deposited by radio frequency (rf) sputtering technique on p-type Si (100) substrate. The thickness, composition and phases of films in relation to annealing temperatures have been investigated by using cross sectional FE-SEM (Field Emission Scanning Electron Microscope) and grazing incidence x-ray diffraction (GI-XRD), respectively. GIXRD analysi...

The effect of film thickness on the structural- and electrical-properties is investigated in Co 2 FeAl 0.5 Si (CFAS) thin films thickness, t, range 12–75 nm. These are grown by ultrahigh vacuum dc magnetron sputtering Si(100) substrates with SiO buffer layer (300 nm), at substrate temperature 500 ◦ C. GIXRD patterns reveal that B2 structural order decreases increasing t. t = 75 nm has sizable A...

This study investigated the effect of potential change on microstructure and corrosion properties CoCrFeMnNi HEA coatings synthesized by electrochemical deposition method. The films were precipitated in an electrolyte based a DMF-CH 3 CN organic system comprising Co, Cr, Fe, Mn, Ni cations. GIXRD pattern all samples showed single face-centered-cubic structure. SEM-EDS results show that coating ...

Tantalum nitride nanoparticles (NPs) and cubic bixbyite-type Ta2N3 nanocrystals (NCs) were grown in (Ta-N+Al2O3)/Al2O3 periodic multilayers (MLs) after thermal treatment. The MLs were prepared by magnetron deposition at room temperature and characterized using grazing incidence small-angle X-ray scattering (GISAXS), X-ray reflectivity (XRR), grazing incidence X-ray diffraction (GIXRD), secondar...

The nanocrystal 3C-SiC/ZrO₂ bilayer films that could be used as the protective coatings of zirconium alloy fuel cladding were prepared on a single-crystal Si substrate. The corresponding nanocrystal 3C-SiC film and nanocrystal ZrO₂ film were also dividedly synthesized. The microstructure of nanocrystal films was analyzed by grazing incidence X-ray diffraction (GIXRD) and cross-sectional transmi...

Molecular engineering on the conjugated side chains of two-dimensional (2D) conjugated polymers was conducted and its effect on the optical, electronic, self-assembly and photovoltaic properties was investigated. A new monomer, M2, was prepared by capping (E)-30-(2-(2,5-dibromothiophen-3-yl)vinyl)4,400-bis(2-ethylhexyl)-2,20:50,200-terthiophene, M1, with two heptanoyl groups, and then coupled w...