Materials Literature
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The seedlayer effect on crystallographic structure and magnetic properties of cosputtered SmCo films on Cu underlayer was investigated. Highly textured (001) SmCo5 thin films were obtained by introducing a thin Ti or Ta seedlayer. Especially, with the Ta seedlayer, the half maximum of the rocking curve of SmCo (001) p…
A conductive polyaniline/poly(ethylene terephthalate) (PANI/PET) composite film was fabricated via the oxidative graft copolymerization of aniline (ANI) onto the plasma-induced poly(acrylic acid) (PAAc) grafted PET surface. The attenuated total reflectance Fourier transform infrared spectroscopy spectra (ATR-FTIR) and…
Carbon nanofibers (CNFs) and activated carbon (AC) are two forms of carbon with different shape and surface properties. These two carbon materials were used as additive/nucleation agents in the polystyrene extrusion foaming process. Carbon dioxide (CO 2 ) was used as the blowing agent. Both additives showed better pro…
Environmental protection and legislative pressure to eliminate the use of solvents in the adhesive industry have inspired the search for safer alternatives. In the area of contact adhesives, the waterborne route has proved to be of particular interest. Based on the synergistic effect of polychloroprene latex and styre…
A Pt/BaCO3/Al2O3 model NO x storage-reduction catalyst, which was prepared as a thin film (∼100 Å) on the surface of tantalum foil, was studied by X-ray photoelectron spectroscopy (XPS). It was found that the Pt/BaCO3 and Pt/Al2O3 catalyst constituents acquired different surface charges in the course of photoelectron…
There is an increasing gap of misperception between the contribution of fundamental research to applications of technologies for electrical apparatus and systems and this paper aims at highlighting the contribution of base research to electrical asset management, referring to some of the major research themes in recen…
Composite nanoparticles of aerosol OT-alginate hydrogel loaded with Fe3O4and rhodamine 6G (R6G) in average diameter between 25 nm and 50 nm were synthesized by emulsification-cross-linking process and characterized by transmission electron microscopy (TEM) and SQUID magnetometery measurements. TEM measurements show th…
Polycarbonate has the reputation of having a tough breaking behaviour, but it is often unknown that this applies only to special conditions. The impact strength of polycarbonate depends on the temperature, the thickness (with a tough brittle transition at thickness increases), contribution of notch tip radius, impact…
A layer-by-layer (LbL) self-assembly strategy involving oppositely charged Ag nanoparticles was used to deposit a nanoshell of Ag nanoparticles on silica microspheres for trace chemical measurements in aqueous solutions by means of surface-enhanced Raman scattering (SERS). Positively charged Ag nanoparticles were prod…
Hybrid spintronic structures, integrating half-metallic magnetic oxides and Heusler alloys with their predicted high spin polarization, are important for the development of second-generation spintronics with high-efficient spin injection. We have synthesized epitaxial magnetic oxide Fe3O4on GaAs(100) and the unit cell…
Systems of magnetic nanowires are considered strong candidates in many technological applications as microwave filters, sensors or for data storage. The main parameter that controls the response of magnetic nanowires assemblies is the aspect ratio of the nanowires. In this paper we modify the aspect ratio by keeping c…
This paper presents an improved magnetic reluctivity model for vector magnetic properties of anisotropic electrical steel sheet based on Chua-type model using Fourier series expansion of measuredBandHwaveforms in the viewpoint of engineering application. In the modeling, B-spline surface interpolation is adopted to ob…
Nanocrystalline Mg–Zn ferrite phases obtained by high-energy ball milling a stoichiometric (0.5:0.5:1) powder mixture of MgO, ZnO, and α-Fe 2 O 3 at room temperature are subjected to postannealing treatment to study the stability of nanocrystalline ferrite phases at elevated temperatures. An X-ray diffraction (XRD) st…
Al/ZnO:N/Al and Ni/ZnO:N/Al diode photodetectors fabricated by dc magnetron sputtering of ZnO:N films on p-Si substrates are studied. The photocurrent-to-dark current ratio equal to 250 at = 390 nm and the time constant of photoresponse about 10 s for Al/ZnO:N/Al structures with 4 m interdigital spacing was achieved.…
Since its invention in 1991, premixed combustion synthesis of fullerenic materials has been established as the major industrial process for manufacturing of these materials. Large-scale production of fullerenes such as C60, C70 and C84 has been implemented. More recently, combustion technology has been extended to the…
Pipelines exhibit a magnetic anisotropy with the easy axis in the axial direction of the pipe. Three different types of steel API 5L (X52, X56, X60) obtained from out-of-service pipeline sections were investigated with respect to their microstructure, magnetic properties, and magnetostriction. In order to measure the…
This work focuses on the impact of oxidizing (O2) and reducing plasma ashing chemistries (NH3, CH4) on the modifications of dielectric materials in a porous or an hybrid state (SiOCH matrix+porogen). The plasma ashing processes have been performed on blanket wafers using O2, NH3, and CH4 based plasmas. The modificatio…
Abstract The synthesis of 2‐hydroxy‐ N ‐[2‐(2‐hydroxy‐propionylamino)‐ethyl]propionamide (“aliphatic amidediol”) is described. Aliphatic amidediol and glycerol were used as a novel mixed plasticizer for corn starch to prepare thermoplastic starch. Fourier transform infrared (FT‐IR) spectroscopy proved that the mixture…
Thermoluminescence Theory Optically Stimulated Luminescence Luminescence Dating Miscellanea Kinetics Methods General Properties.
Poly(vinyl alcohol) (PVA) is a highly versatile synthetic polymer that is formed by full or partial hydrolysis of poly(vinyl acetate) (PVAc). A wide range of PVA partially hydrolysed grades are commercially available, but the amphiphilic grades of the polymer (30-60% hydrolysis), which probably the most interesting in…