Materials Literature
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The deformation and fracture of a soda-lime-silica glass were investigated under tension by molecular dynamics simulation. The process of the deformation consisted of elastic deformation, flow, and expansion accompanied with flow in the order before the glass fractured. The main structural change on each deformation w…
An amorphous Sm5Fe17 melt-spun ribbon was annealed under various conditions to obtain the metastable Sm5Fe17 phase. The Sm5Fe17 phase could be obtained by annealing at temperatures between 873 K and 973 K for 0.1–1 h. However, the annealed specimens contained other phases such as the SmFe2 and SmFe3 phases depending o…
Incubation times of stress corrosion cracking (SCC) for mill annealed and cold rolled type 316L stainless steel (SS) and type 316 SS were examined by the creviced bent beam method in oxygenated high temperature water at 561 K. SCC was observed in type 316L SS after exposure of 1000 h to the test environment, although…
For the purpose of the development of a cheap, excellent in formability AZ31 alloy sheet, the influence of rolling and heat-treatment on grain refinement was examined using the cast strip processed by the twin-roll casting as a sample. As a result, it became clear that the almost uniform, fine grain structure of avera…
The morphology of polypyrrole films produced on graphite fiber substrate is affected by hydrous/anhydrous oxidants. Variation in the morphology was monitored from observation of electronic microscopy images and Brunauer–Emmett–Teller measurements, and the proposed mechanism of film formation is discussed. It was found…
In-situ TiB whisker reinforced, pure Ti matrix composites have been fabricated by spark plasma sintering (SPS). The microstructure and morphology of the in-situ TiB whiskers in the matrix was observed by scanning electron microscopy (SEM). Mechanical properties, such as elevated-temperature tensile strength, fatigue r…
We investigated the magnetic and dielectric properties of a metal (Pt)/insulator (Cr2O3)/magnetic floating gate (Fe)/tunnel layer (CeO2)/semiconductor (Si) capacitor. This capacitor shows capacitance-voltage (C-V) properties typical of a Si Metal-Insulator-Semiconductor (MIS) capacitor with hysteresis, which indicates…
The possibility to control the crystallization process of biomaterials by the temperature was examined by the mathematical simulation of lysozyme crystallization. The precision-temperature control with creation of a local temperature gradient in solution was demonstrated to allow the growth of lysozyme crystals with h…
Polymer/clay nanocomposites currently attract immense interest from both research and industrial communities. By dispersing at the molecular level a tiny amount of clay within a polymeric matrix, a wide range of properties can be significantly improved. The efficiency of the clay (layered silicate) in improving the pr…
Nano-sized Ce1-xGdxO2 (0 ≤ x ≤ 0.2) particles were prepared by spray pyrolysis process from the spray solution with ethylene glycol. The mean sizes of Ce1-xGdxO2 (x = 0, 0.05, 0.1, 0.2) particles were each 46, 33, 29, and 28 nm. The mean crystallite size of pure CeO2 was 33 nm. However, the Gd-doped CeO2 had the mean…
X-RAY STRUCTURAL STUDIES. This work presents three operationally simple laboratory protocols for monocrystal growth of small-molecule organic compounds, which have been applied with success in the last ten years for the formation of single crystals for X-ray structural studies. In addition, five structure hints were f…
Novel Bi(V) complexes with the β-lactam antibiotics amoxicillin trihydrate (ACT) and ampicillin trihydrate (APT) ligands were prepared and studied by several spectral techniques both in solid as well in solution. The crystallographic data of the ligands and their relative complexes are given as a = 13.9961 (A), b = 5.…
The objective of this research is to research the effect of particle soaking to physical and mechanical properties particleboard that resulted. The best result of particleboard is particleboard with treatment of hot water soaking. From this result obtained average of physical properties of particleboard (i.e. density,…
This paper reports an enhancement of the photoluminescence intensity of -doped caused by the addition of ZnO. Samples were prepared by solid-state reaction of a mixture of , , and ZnO powders at . The photoluminescence intensity of the sample calcined with ZnO of against is about three times higher than that of the Zn…
Multiferroics: the multifunctional materials exhibit the entwined nature between the two distinct phenomena of ferroelectricity and ferromagnetism, which allow them to utilize for novel device concepts that would not be attainable by either ferroelectric or ferromagnetic materials. Magnetic and ferroelectric materials…
Hydrogels that form via the self‐assembly of β‐hairpin peptides are studied for their potential use in biomedical applications. Multiple particle tracking microrheology and circular dichroism (CD) spectroscopy are used to study the gelation kinetics of four peptides that are engineered to exhibit responsive behavior t…
An AMR test apparatus has been developed for testing magnetic regenerators at temperatures ranging from room-temperature to 20 K. Near 300 K, no-load temperature spans over 80 K have been produced using regenerators composed of two and three different magnetocaloric materials. Modifications to the apparatus have been…
The use of the neutral particle analysis (NPA) to study the ion component of plasma on ITER has been reviewed. Both thermal (10–200 keV) and supra‐thermal (0.2–4 MeV) energy ranges of neutral fluxes are studied in respect to feasibility of the fusion fuel isotopic composition measurements. Influence of heating neutral…
The NiAs‐type solid solutions based on manganese antimonide Mn1.1Sb with Zn or Cu (up to 10 at % of substituting component) have been studied by 57Fe Mössbauer spectroscopy. It has been shown that the replacement of the manganese antimonide by Cu or Zn does not appreciably affect the main Mössbauer parameters in compa…
Shear creep experiments have been applied to probe the zero‐shear viscosity, η0, of molten undiluted polyolefin chains directly and precisely in a constant‐stress rheometer at 190 °C. Such experiments when combined with precise measurements of the weight‐average molecular weight, Mw (calibrated relative to linear chai…