Materials Literature
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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…
Barkhausen noise is the result of abrupt magnetic domain activity around pinning sites in ferromagnetic materials. Our recent work has investigated permeability‐independent measurements of Barkhausen noise, made possible by directly controlling the magnetic circuit flux and its derivative. This approach, as opposed to…
The phase composition and development of calcium aluminates (CA, CA2, and CA6) processed by in‐situ reaction sintering of Al2O3 and CaCO3 have been studied by Rietveld refinement technique. The formation of calcium aluminates is temperature‐dependent. X‐ray diffraction result revealed that the CA, CA2, and CA6 phases…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation K. Tanaka, M. Muramatsu, T. Uchida, S. Biri, T. Asaji, K. Shima, T. Hanajiri, A. Kitagawa, Y. Kat…
Cellulose diacetate (CDA) and calcium carbonate () biodegradable composites were prepared by melt mixing in a twin screw extruder and their physical properties were examined. In the melt processing, triacetine and epoxidized soybean oil were added to the composites as a plasticizer and lubricant, respectively. The opt…
Primary precipitation phases in amorphous Fe-Si-B-Nb alloys with compositions around FINEMET and bulk amorphous alloys have been investigated. On the base of new and previous TEM and XRD results concentration areas and condition for formation of the metastable phases have been determined. Role of the primary metastabl…
Poly(3-hydroxyalkanoate) (PHA) is a class of biodegradable polyesters that is accumulated by a large number of bacteria as carbon storage compound under nutrient limited growth conditions. PHA with side-chains of medium-chain-length (mcl-PHA) represents a promising class of polymers because of its broad spectrum of ph…
The elastic wave velocities of MORB glass were measured up to 18.7 GPa at 27 °C using an ultrasonic technique combined with in situ high-pressure X-ray diffraction and imaging. High-pressure Raman spectroscopy using a diamond anvil cell was also employed to study the local structure of the glass sample up to 20 GPa. B…