Materials Literature
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Properties and Characterization of Thin Films (M Cekada) Chemical Vapor Deposition of Metals: From Unary Systems to Complex Metallic Alloys (C Vahlas) Physical Vapor Deposition of Thin Film Coatings (W Gulbinski) Engineering Analysis of Chemical Vapor Deposition Processes (A G Boudouvis) Surface Structure of Complex M…
The spin Hamiltonian method in combination with ab initio calculations of the spin characteristics of quantum registers that include an electron spin S = 1 of a single NV center in the ground electronic state and nuclear spins I = 1/2 of several atoms 13C located at different lattice sites near the vacancy of the NV c…
Punkaruaivite, ideally LiTi 2 [Si 4 O 11 (OH)](OH) 2 ·H 2 O, is a new species of Li titanosilicate [monoclinic, C 2/ c, a 26.688(2), b 8.7568(7), c 5.2188(5) A, β 91.189(2)°, V 1219.4(2) A 3 , Z = 4], chemically and structurally related to lintisite. The mineral is found in two different hydrothermal veins, within the…
Metal-doped ZnO films with various metal contents ( Al , Ag and Li of 0–10 wt.%) were prepared by RF magnetron sputtering system with specially designed ZnO targets. The structural, optical and electrical properties of MZO films depended on the type and content of doping in target. Electrical resistivity of LZO thin f…
The crystal structure of three samples of nepheline (ideally, K{sub 2}Na{sub 6}[Al{sub 8}Si{sub 8}O{sub 32}]) from the Bancroft area of Ontario (1a, b: Egan Chute, 2: Nephton, and 3: Davis Hill), each with different types of superstructure reflections, has been studied using synchrotron high-resolution powder X-ray di…
Platinum nanoparticle catalysts are essential for achieving energy-efficient and greener chemical processes that involve breaking or establishing of H-H, C-H, or O-H bonds. In this work, we report an innovative top-down strategy to prepare the supported Pt nanoparticles with an average size of approximately 2 nm, star…
In this report we present an X-ray crystallographic study of two N -deficient hemiporphyrazines: dicarbahemiporphyrazine (1) and benziphthalocyanine (2). Both compounds can be isolated in multiple crystal forms, and five different solvated forms of macrocycle 1 are presented. Four of the five are non-planar, showing t…
The crystal structure and magnetic properties of polycrystalline alloys Fe 62.5 Ni 37.5 , Fe 60 Ni 40 , Fe 50 Ni 50 obtained by arc-melting and Fe 40 Ni 40 B 20 alloy obtained by melt spinning technique were investigated by X-ray, magnetostatic and Mssbauer effect methods. The X-ray measurements show that Fe 40 Ni 40…
Abstract For the first time, sillica‐supported sulfuric acid has been used as a heterogeneous, reusable and efficient catalyst at room temperature to give the corresponding dipyrromethanes in a very short reaction time. The new reaction procedure is simple and solvent is not required.
Setting up an empirical model of optical sensing to exploit the circular Bragg phenomenon displayed by chiral sculptured thin films (CSTFs), we considered a CSTF with and without a central twist defect of$\pi/2$rad. The circular Bragg phenomenon of the defect-free CSTF and the spectral hole in the copolarized reflecta…
Although stereochemistry of carbon nanotubes (CNTs) has been discussed so far in some papers, no common terminology has existed for describing left- and right-handed structures of chiral CNTs. Since optically active CNTs have been found experimentally by our group, the stereochemistry of CNTs is required to be reconsi…
To identify the compounds existing in the PbSe-Bi 2 Se 3 system, Bridgman-grown ingots and annealed polycrystalline samples have been characterized by X-ray diffraction. The results indicate that the first solidified portion of the Bridgman-grown ingots consists of a PbSe-based solid solution with a cubic structure. F…
Future monolithic point of load switched mode power supplies will be expected to meet the energy requirements of miniaturized, high functionality electronic devices. Recently, Ni45Fe55 has emerged as a potentially important material choice for use as a soft magnetic core material within high frequency integrated passi…
In this paper, carbon-nanofibre-reinforced polypropylene foams were prepared and characterized regarding their foaming behaviour, cellular structure and both thermo-mechanical as well as electrical properties. Polypropylene (PP) nanocomposites containing 5, 10 and 20 wt% of carbon nanofibres (CNF) and a chemical blowi…
Multi-wall carbon nanotubes (MWCNTs) were prepared by spray-pyrolysis of a botanical hydrocarbon, alpha-pinene and ferrocene as the catalyst at 700–1000°C. The MWCNTs were analysed by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and X-ray diffraction. The microscopy studies show t…
Abstract Several silicate-minerals, such as ardennite – Mn 2+ 4 MgAl 5 [Si 5 (As 5+ ,V 5+ )O 22 ](OH) 6 , Z = 2, tiragalloite – Mn 2+ 4 [Si 3 As 5+ O 12 (OH)], Z = 4 and medaite – Mn 2+ 6 [Si 5 (V 5+ ,As 5+ )O 18 (OH)], Z = 4 possess (V 5+ ,As 5+ ,P 5+ )O 4 tetrahedra. Using electron-microprobe analysis (EMPA) and sin…
Abstract This review focuses on polymeric biomaterials and provides a selective overview of the computational modeling approaches used to predict their properties and biological responses. Also, a short overview of existing databases and software packages for the biomaterials field is presented. The review summarizes…
Abstract Multiwall carbon nanotubes (MWNT) were modified orderly with carboxyl groups and amino groups. The MWNT/gold nanoparticle composites were formed when the amino‐functionalized MWNT was interacted with gold colloids. The functionalized MWNT was characterized using Fourier transform infrared spectroscopy and X‐r…
A series of copper-cerium oxide catalysts was prepared by the Pechini method, and their physicochemical and catalytic properties in CO oxidation in hydrogen-containing gas mixtures were studied. The method chosen for catalyst preparation yields finely dispersed copper and cerium oxides in the catalyst.
We report the magnetoelectrical properties of polycrystalline Pr0.58Ca0.42MnO3 thin films (thickness∼300 nm) deposited on single crystal LaAlO3 (LAO) and SrTiO3 (STO) substrates. The films on LAO show charge ordering (CO) at TCO≈240 K, with a metamagnetic ground state akin to the cluster glass (CG). In PCMO/STO films…