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In this work a structural and functional study of as-deposited and annealed iron (Fe) and nickel (Ni) heterogenous thin films deposited by electron-beam evaporation is carried out. For structural analysis are used transmission electron microscopy (TEM) and selected-area electron diffraction (SAED). Fourier-transformed infra-red (FTIR) spectroscopy is used to analyze their compositional conditions...
The mechanism of the formation of in-situ ultra thin silicon nitride (SiNx) layer (< 2 nm) on amorphous silicon (a-Si) layer has been studied by Fourier transform infra-red spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The ultra-thin SiNx layers have been obtained through a hot-wire chemical vapor deposition (HWCVD) route. Approximately 1–4 nm thick films of SiNx were obtained...
Redwood, the most valuable commercial wood species in the world, has become one of the scarce natural resources currently. In order to exploit the comprehensive utilization of redwood, the thermal and chemical properties of benzene and alcohol extractives from two main redwood species, Pterocarpus macarocarpus Kurz and Dalbergia cochinchinensis Pierre, were investigated using Fourier Ttransform Infrared...
Radiation has been used in many industrial processes for decades. These irradiation technologies require specific dosimeter systems for process control. In this research project, Rhizophora Apiculata dye solutions have been characterized as a function of day exposure to sunlight by measuring the FTIR spectra using Shimadzu FT-IR 360 instrument. From the FTIR spectra results, it was found that the...
The paper describes verification of in vitro characteristics of ketoconazole and itraconazole nanoparticulates in wet-nanomilling, as well as their physicochemical properties. By wet-nanomilling, stable nanoscale particulates can be prepared which have better physical properties. In this study, nanoparticulate drugs were characterized in shape and structure using the scanning electron microscope (SEM)...
The tri(o-phenylenediamine) cyclotriphosphazene (TPCTP) was synthesized using titrating technology of hexachlorocyclotriphosphazene solution and the synthesis parameters were investigated, and the structure of TPCTP was analyzed by FTIR in this paper. Using TPCTP synthesized in the work as flame retardant, the epoxy molding compound(EMC) for packaging of large-scale integrated circuits with halogen-free...
A new acidic polysaccharide with water-solubility from Prunella Vulgaris Linn was extracted by water, isolated and purified by sequential treatment such as alcohol precipitation, macropole adsorbent resins, and DEAE-Sepharose Fast Flow anion-exchange column chromatography. The weight-average molecular weight of acidic polysaccharide was 57234 Da. The results of FTIR, UV spectra and elemental analysis...
The mechanism of Pb ( II ) biosorption by Saccharomyces Cerevisiae is investigated by scanning electron microscopy-energy dispersive x-ray (SEM-EDX) spectroscopy, Fourier transform infrared(FTIR) spectroscopy and x-ray photoelectron spectroscopy(XPS). The SEM figures show that the shapes of Saccharomyces Cerevisiae cells doesn't obviously change after the adsorption,but there are many "spots"...
Depending on the fact that most pillared clays show poor thermal stability, the study on the synthesis of novel Si-pillared montmorillonites (Si-MMT) with high thermal stability have been carried out. Furthermore, powder X-ray diffraction (XRD), Fourier transformation infra-red spectra (FTIR), nitrogen adsorption-desorption isotherms were applied in order to study the thermal stability and mechanisms...
O-cresol novolac epoxy resins are used widely as electronic encapsulating materials. When the pitch wires in electronic systems are more slender, there are pressing demands for high purity o-cresol novolac epoxy resin which are with little content of hydrolyzable chloride. In this paper, o-cresol novolac resin was synthesized from para-formaldehyde and o-cresol in the presence of a mixed catalyst...
In this study, a novel anisotropic conductive film (ACF) bonding process using ultrasonic vibration was investigated in chip-on-board (COB) and flex-on-board (FOB) applications. The ACF temperature increased as the U/S power increased and the bonding pressure decreased. The ACF temperature was successfully controlled by adjusting both U/S power and bonding pressure. The optimized U/S bonding time...
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