Materials Literature
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The mechanism of electroluminescence under inhomogeneous field conditions is investigated, as is the use of electroluminescence for determination of the space charge limited field. The latter investigation indicates that if the volume of polymer within the space charge limited field region is too small, the photon flu…
The observation of spontaneous oscillations in current during the anodization of InP in relatively high concentrations of KOH electrolytes is reported. Oscillations were observed under potential sweep and constant potential conditions. Well-defined oscillations are observed during linear potential sweeps of InP in 5 m…
We have performed extensive numerical computations on the vibrational spectra of isolated amorphous clusters of medium to large size and containing one or two types of atoms. The interaction potential is also varied to study possible universality. For all the potentials and cluster sizes we find that the cumulative de…
Article On the Dendritic Growth and Microsegregation in Ni-Base Superalloys Ιn718, In625 and In939 was published on August 1, 2005 in the journal High Temperature Materials and Processes (volume 24, issue 4).
We have experimentally studied the effect of X-ray irradiation on the structural and dielectric properties of glycine phosphite (GPI) single crystal around its ferroelectric phase transition. While there was no appreciable change in the lattice parameters, a significant drop in the value of dielectric constant and tan…
Abstract In this study, Al‐pillared white bentonite (Ordu‐Unye, Turkey) was used for cottonseed oil bleaching. Pillaring process parameters were optimized in terms of bleaching efficiency as the bleaching capacity of cottonseed oil. The initial cation concentration, hydrolyzing agent ratio, and thermal treatment tempe…
The applicability of bremsstrahlung counting to in-situ measurements of high level tritiated water has been examined. A specially designed metallic vial fitted with a gold-coated beryllium window was prepared for the present examinations. Only tritiated water of a given amount was put into the vial. The volume depende…
Purpose To study the effect of inhibition of new bipyrazole derivatives on the corrosion of steel in HCl media at various temperatures. Design/methodology/approach In this study, novel corrosion inhibitors, namely bipyrazoles were synthesised and tested as corrosion inhibitors for steel in 1 M HCl. The degree of corro…
In this work, a review of recent experimental data and their interpretation for Ni c Mg 1− c O solid solutions is given. In particular, the influence of exchange interactions between Ni 2+ ions on the structural, optical, magnetic, and vibrational properties is discussed.
Studies concerning assessment of the image quality in scanning electron microscopes and studies evaluating the detective efficiency of the secondary electron (SE) detectors in these microscopes must be based on statistics of SE emission. The vast majority of previous studies have applied Poisson statistics, although t…
Abstract A spin crossover FeIII complex, [FeHim2L]BPh4·2MeOH, was synthesized and studied, where Him = imidazole, H2L = N2O2 Schiff base ligand of the 1 : 1 : 1 condensation product of acetylacetone, ethylenediamine, and o-hydroxyacetophenone, and BPh4− = tetraphenylborate. The complex consists of a cyclic dimeric str…
In this study, the thermal behavior of three hydrated water-soluble 4-sulphonato calix[n]arenes was investigated. The melting points, heats of fusion, and heats of solution of the calix[4]arene, calix[6]arene and calix[8]arene were 277, 262, and 270°C; 192, 242 and 351 kJ/mol; and 30, 58 and 63 kJ/mol, respectively. L…
A series of bismaleimide monomers were used to prepare poly(aminobismaleimide)s in an attempt to achieve polymers with improved properties. Structurally different bismaleimides with ester units were synthesized by reaction between 3(4)‐maleimidobenzoylchloride with various diphenols. Bismaleimides BMI‐3 and BMI‐4 were…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
Zirconium-Cobalt (ZrCo) tritium storage bed with “in-bed” gas flowing calorimetry has been developed as a self-assaying system for the Tritium Storage and Delivery System of ITER. The basic tritium accounting characteristics have been investigated and practical data on the accounting stability has been accumulated und…
For transient, time dependent polarization processes stretched exponential functions and power laws referred to as Kohlrausch relaxations are often observed in disordered dielectrics. These relaxations can be distributed in time or frequency over more than 12 decades. Among the various existing models for an interpret…
The structural changes upon cation substitution in natural AB 2 O 6 columbites have been studied by means of single-crystal X-ray diffraction. Most of the structural variations across the MnNb 2 O 6 - FeNb 2 O 6 solid solution in completely ordered samples can be simply understood in terms of ionic radii. The substitu…
Purpose To develop a method based on urea/microwave treatment for improving the dyeability of the flax fibre. Design/methodology/approach The treatment was carried out under a variety of conditions in terms of the power of the microwave, the time of microwave treatment and the use of urea in the treatment solution. Th…
Tamoxifen citrate, a non-steroidal anti-oestrogen has potential applications in treatment of breast cancer. Biodegradable microspheres of' PLGA 65:35 were prepared by o/w emulsification solvent evaporation method. In this study, different batches of varying concentration of drug, polymer, polyvinyl alcohol and solvent…
The effectiveness of different microscopy techniques for measuring the dimensions of ultimate fibers from harakeke (Phormium tenax, New Zealand flax) was investigated using a factorial experimental design. Constant variables were geographical location, location of specimens along the leaf, season (winter), individual…