Materials Literature
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The roughness evolution during plasma deposition of amorphous hydrogenated carbon (a-C:H) films is investigated. Films were deposited from an inductively coupled methane plasma using a wide range of process parameters. Plasma deposition is uniquely described by the dissipated energy per source gas molecule Emean. Depe…
Electroactive polypyrrole (PPy) films obtained under potentiostatic electropolimerization from aqueous solutions of pyrrole doped with sulfate (SO 4 2-) anions were modified by incorporation of copper (Cu) and silver (Ag) microparticles using electrochemical cementation process. The electrochemically deposited and dis…
The bending evaluation system of fabric and yarn (BES-FY) can measure the bending, weight, friction and tensile properties of fabric and yarn through a pull-out test and delineate the relationship between the mechanical geometry and the corresponding deforming process, so as to quantify the comprehensive hand of fabri…
The deposition of crystalline and amorphous STO (SrTiO 3 ) thin films by aerosol chemical vapor deposition (ASCVD) was investigated. The crystalline STO thin film exhibited a higher dielectric constant of approximately 160 and a dielectric loss (tan δ) of 3.5% (at 1 kHz). In contrast, the amorphous STO thin films with…
Weathering tests on kimberlites from several sources indicate that the single most important aspect when considering kimberlite weathering is the presence of swelling clay. Certain kimberlites, containing no swelling clay, are non-weatherable even under considerably aggravated conditions. For other kimberlites, increa…
Abstract Thermal and rheological properties of various blends of gelatinized starch and biodegradable polyester, polycaprolactone (PCL) or poly(butylene succinate adipate) (PBSA), were studied by DSC, TGA and rheometry. Methylenediphenyl diisocyanate (MDI) was used as a compatibilizer and was distributed in different…
Abstract This study investigated the effects of processing conditions on the shrinkage and warpage behavior of a box-shaped, polypropylene part created using a special microcellular co-injection molding process. Results were compared to the shrinkage and warpage of conventional and microcellular injection molded parts…
Excimer laser crystallization processing of thin silicon films on amorphous silicon oxide substrates was simulated by means of phase field modeling. The quantitative phase field model was derived from the Gibbs-Thompson equation coupled with energy conservation. Because the adaptive mesh scheme was adopted, the presen…
When using chitosan as an antifungal agent in wood it is important to understand which factors contribute to a higher fixation ratio to optimize the utilization of chitosan, the active component. Small pine samples were impregnated with chitosan solutions varying in molecular weight, concentration, pH, polymerization…
Magnetophotoluminescence (PL) measurements are performed on GaxIn1−xP∕AlGaInP quantum wells with CuPt-type long-range ordering. Curve-fitting and second-order derivative operations are conducted, respectively, on the PL spectra, and two different PL components are identified with an energetic separation of about 5∼25m…
Self-organized nanogels were prepared from pullulan/biotin conjugates (PU/Bio) for the development of an effective anticancer drug delivery system. The degree of biotin substitution was 11, 19, and 24 biotin groups per 100 anhydroglucose units of pullulan. The physicochemical properties of the nanogels (PU/Bio1, 2 and…
The susceptibility to stress corrosion cracking (SCC) of Type 321 (UNS S32100) stainless steel (SS) under simulated petrochemical conditions containing thiosulfate and chloride (20 wt% sodium chloride [NaCl] + 0.01 M sodium thiosulfate [Na2S2O3], pH = 2) was assessed using the slow strain rate tensile (SSRT) test and…
Interactions between the red tide-forming dinoflagellate Gyrodinium instriatum Freudenthl et Lee and the diatom Skeletonema costatum (Greville) Cleve were investigated in bialgal cultures. The growth rates and maximum cell densities of G. instriatum decreased dramatically in cultures containing S. costatum. In additio…
In Pb(Fe1/2Ta1/2)O3 ceramics with Li2CO3 addition the mean temperature of the antiferromagnetic phase transition (Neel temperature), determined from the Mossbauer spectra studies was found to depend on the sintering temperature. Dielectric studies show that lowering of Neel temperature is accompanied by increasing of…
The piezoelectric properties of a solid solution based on the three components of bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT), bismuth potassium titanate, (Bi1/2K1/2)TiO3 (BKT), and barium titanate, BaTiO3 (BT), that is, x(Bi1/2Na1/2)TiO3-y(Bi1/2K1/2)TiO3-zBaTiO3 [BNBKy:z(x); x+y+z=1] are investigated. Fine piezoe…
Abstract Reactions of MBH 4 (M = Li, Na, K) with tBuOH, Ph 3 COH, PhOH, F 5 C 6 OH, and 2,4- tBu 2 C 6 H 3 OH in THF in a 1 : 1 ratio were followed by 11 B NMR spectroscopy. No M[H 2 B(OR) 2 ] species could be detected, but minor amounts of M[H 3 BOR] and larger amounts of M[HB(OR) 3 ]. In the reaction of LiBH 4 with…
A novel polymer-based multiwall carbon nanotube (MWCNT) with high shielding effectiveness (SE) for use in packaging a 2.5-Gb/s plastic transceiver module is demonstrated. The MWCNT composites are tested to evaluate the electromagnetic (EM) shielding against emitted radiation from the optical transceiver modules. The r…
Based on the theory of metamaterial transmission lines, a phase shifter with independently controllable phase shift and line impedance is developed. The possibility of separate Deltaphiand ZLtuning reduces mismatch losses and leads to an increased performance, or can be applied for a combined phase shifter attenuator…
Several series of new benzofused thieno[3,2‐b]furan‐ and thieno[3,2‐b]thiophene‐based derivatives have been synthesized and their mesomorphic properties investigated. All the studied compounds exhibit a SmC* phase with very wide temperature interval. Additionally, some types of the compounds show the cholesteric, SmA…
Based on the literature data (144 references mainly from the last 20 years) and own results the review of possible mechanisms of thermal or thermooxidative degradation of polyester thermoplastic elastomers (TPE-E) are reported. A lot of block copolymers differing in the structure of segments are included into this gro…