Materials Literature
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CeO2-TiO2 sols and films were prepared by sol-gel method. The precursor sols consist of a mixture of cerium nitrate hexahydrate Ce(NO3)3·6H2O, butyl titanate Ti(OC4H9)4 and anhydrous ethanol CH3CH2OH. The films were deposited using the dip-coating technique and calcined at 310 °C in an oxygen atmosphere. The effects o…
Process-induced residual stress in shape memory alloy (SMA) fiber reinforced aluminum (Al) matrix composite was simulated by ANSYS APDL. The manufacturing process of the composite named as NiTi/Al is start with loading and unloading process of nickel titanium (NiTi) wire as SMA to generate a residual plastic strain. T…
Granular materials are widespread in nature and in manufacturing. Their particulate nature gives a compressive strength of a similar order of magnitude as many continuous solids, a vanishingly small tensile strength and variable shear strength, highly dependent on the loading conditions. Previous studies have shown th…
Energy dispersive X-ray fluorescence spectrometry (EDXRF) allows a rapid determination of the concentration of elemental constituents or the thickness of thin film, it has been widely used in the industry of thin film thickness. But for multilayer film, especially the middle layer, with the absorption and enhance effe…
In this study there was compared the effect of different methods of modification (modification by plasma treatment and ionizing beta radiation) on the surface properties (contact angle of wetting and surface free energy) and on the final strength of bonded joints of selected types thermoplastics (low density polyethyl…
This paper gives an overview of nuclear education and outreach program conducted by Agensi Nuklear Malaysia (Nuklear Malaysia) throughout its operation and establishment. Since its foundation in 1972, Nuklear Malaysia has been the pioneer and is competent in the application of nuclear science and technology. Today, Nu…
The formation mechanism of conduction path in the defected titanium dioxide with two Ti-interstitials is discussed in Car-Parrinello molecular dynamics. In the equilibrated structure, we find the aggregated O-ions where the electrons delocalized. Besides, a belt-like conduction path is produced as the formation of the…
A magnetothermopower has been observed in electronically spin-polarized polycrystalline Sr2-xLaxFeMoO6 and Ba2FeMoO6. The magnetothermopower is linear up to ~50 K for Sr2-xLaxFeMoO6 and linear up to ~270 K for Ba2FeMoO6. We suggest that the magnetothermopower may arise from a spin-tunneling magnetothermopower between…
Nanoparticles of barium strontium titanate (BST) or Ba0.3Sr0.7TiO3 were synthesized by mechanical alloying and successive ultrasonic irradiation treatment. This research attempted to reduce the particles obtained through mechanical milling of mechanically alloyed powders to the particles with sizes in nanometer scale.…
Various strategies for achieving a functional poly(lactic acid) (PLA) have been developed such as ring-opening copolymerization with a functional monomer, the use of functional initiator and various post polymerization modifications. It is possible to obtain the star shaped polymer using natural oil with at least thre…
Проведено исследование влияния облучения газовыми кластерными ионами на топографию поверхности карбида кремния и алмаза. С помощью атомно-силовой микроскопии показано, что воздействие на эти материалы кластерных ионов с энергией 10 keV и дозами более 1016 cm-2 приводит к сглаживанию рельефа поверхности. Приведены оцен…
Abstract. Marine biological systems annually process 6.7 gigatons of “Si”. Diatoms and other marine organisms stabilize high concentrations of “soluble silica” (~ 19-340 mM, depending on the diatom species) prior to biosilica formation. It is believed that nature can achieve that by the intervention of, unknown as of…
Conduction current measurements have been widely used to characterize charge transport behavior in insulating materials. However, the interpretation of transport mechanisms and more generally of non-linear processes from current measurements alone is not straightforward. For this reason, space charge measurements, on…
The best previous lower bounds for kissing numbers in dimensions 25-31 were constructed using a set $S$ with $|S| = 480$ of minimal vectors of the Leech lattice, $\Lambda_{24}$, such that $\langle x, y \rangle \leq 1$ for any distinct $x, y \in S$. Then a probabilistic argument based on applying automorphisms of $\Lam…
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Quantitative structure-activity/property relationships (QSAR/QSPR) approaches that have been applied with success in a number of studies are currently used as indispensable tools in the computational analysis of nanomaterials. Evolution of nano-QSAR methodology to the ranks of novel field of knowledge has resulted in…
The objective of this paper is the identification of generalised Maxwell slip (GMS) friction model using a new proposed switching function. The GMS friction model is composed of two phases and a switching function, which guarantee the transition from one phase to another. The switching function is based on the frictio…
Porous carbons were prepared from carboxymethylcellulose-sodium salt (CMC-Na) that has been treated with iodine using halide particles as a template. The dependence of the carbons’ porosity on the sodium content of the initial CMC-Na and the amount of iodine introduced (I/Na molar ratio) were investigated. Both the ca…
Stage-discharge rating curves are used to relate streamflow discharge to continuously measured river stage readings to create a continuous record of streamflow discharge. The stage-discharge relationship is estimated and refined using discrete streamflow measurements over time, during which both the discharge and stag…
The mechanical and chemical properties of sugarcane bagasse (SCB) treated with 3-aminopropyltriethoxysilane (3-APS) filled polypropylene (PP)/recycled acrylonitrile butadiene rubber (NBRr) bio-composites were aim and investigated. The composites with different SCB loading from 5 wt.% to 30 wt.% were prepared using hea…