Materials Literature
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The effect of waterglass on the anti-washout ability of potassium and magnesium phosphate cement(MKPC) paste in water was observed.The preformance and microstructure of hardened MKPC were investigated.The results indicated that,because a certain dosage of waterglass has thickening effect on MKPC paste,it may prevent i…
Adsorption of reactive dye solution on nanochitin and chitin particle under acidic, neutral and basic condition was studied. The percentage adsorption of reactive dye solution on nanochitin and chitin under basic condition was 98% and 59%, respectively. In this study, we used ATR-FTIR spectroscopy to study the adsorpt…
A nuclear polyhedrosis virus isolated from infected Bombyx mori, BmNPV, was used to inoculate silkworms to determine salivary gland cell susceptibility. The salivary gland was removed from infected silkworms at different times post-inoculation and examined by light microscopy. The salivary gland cells did not exhibit…
The numerical simulation by multi-phase field method (MPFM) has been performed in association with calculation of phase diagram. Microstructure formations during solidification, cooling and heat treatment in SUS304 are simulated in conditions of multi-component and multi-phase alloy. It is confirmed that dendrite grow…
In this study, the effect of a hybrid surface modification process; combination of fine particle peening (FPP) and plasma nitriding, on microstructure of pure iron was investigated. Surface microstructures of plasma nitrided specimens pre-treated with FPP were characterized by Optical microscopy, Scanning electron mic…
We investigated quenching effects in solution-processed In-Ga-Zn-O (IGZO). Improved conductivity and crystallinity degradation occurred in quenched IGZO thin-films because of oxygen vacancy generation in a nominal stoichiometric system via defect formation resulting from temperature variation. The optical bandgap was…
SrTiO 3 (STO) thin films were grown on a Si substrate and a TiN electrode by a plasma-enhanced atomic layer deposition (PEALD) process using oxygen plasma. The amorphous STO thin films deposited by the PEALD process showed excellent step coverage, in excess of 97%, and no interfacial layer was detected. The electrical…
Dynamic tensile properties of a variety of plastics, were studied over a wide range of strain rates from 10-2 s-1 to 103 s-1 by using the Sensing Block Type High Speed Material Testing System (SBTS). The plastics were composed of seven kinds of polycarbonate, eight kinds of polyamide, one kind of polypropylene and acr…
Nanoparticles of ZnS-AgInS2 solid solution (ZAIS) were prepared in 3-amino-1-propanol (APP) solution by thermolysis of (AgIn)xZn2(1−x)(S2CN(C2H5)2)4 (x = 0.4−1.0). The resulting APP-modified ZAIS nanoparticles of ca. 3 nm in diameter were dissolved in water. The band gap energy was enlarged by an increase in the x val…
This study reports that polynuclear charge-transfer complexes consisting of Ce3+ and a Lindqvist-type polyoxometalate center, either W6O192− or Mo6O192−, function as an all-inorganic visible-light-absorbing chromophore. The polynuclear W6O19/Ce and Mo6O19/Ce complexes showed an intense absorption band from the UV regi…
Resistance random access memory (ReRAM) is emerging as a next-generation nonvolatile memory. One of the most promising materials for the ReRAM application is a composite of a reactive metal [such as aluminum (Al)] and a mixed-valance manganite [such as La(1-x)Ca(x)MnO3 (LCMO) and La(1-x)Sr(x)MnO3 (LSMO)]. One of the c…
Plant proteins show good potential for medical applications but offer considerable challenges in fabricating biomaterials. Despite substantial efforts, especially in the last decade, to develop polymeric biomaterials, there are no polymers that are ideally suited for tissue engineering, drug delivery and other medical…
Functional plywood can produce constant heat by applying a voltage to the conductive bonding layer between wood sheets. Herein functional plywood was prepared by filling various microsized graphite particles (3.3-52.5μm in diameter) and nanosized carbon black (CB ; 29 nm) into a phenolic resin. To investigate the elec…
Electrically conductive CNT reinforced polycarbonate matrix nanocomposites with high strain-to-failure were fabricated by inserting polyvinylalcohol as a surface modifier through a melt blending process. The addition of PVA by coating the CNT through a simple ball milling process before melt blending with a polycarbon…
In welded pipe joints of austenitic stainless steel, the mismatch of residual stress distribution often occurs between a variety of measurement method and the numerical simulation. It is especially known that non-destructive measurement such as X-ray diffraction method makes remarkable different due to the microstruct…
This study investigated damage condition of a large GFRP tank used to dilute caustic soda. The tank was continuously used in a chemical factory for 13 years and finally scrapped. Samples for the investigation were obtained from four typical positions of the tank. For the samples, optical observation was conducted on t…
Cold spray is a new technique that can be used instead of the conventional thermal spray technique to provide a dense and low-oxide-content metallic coating. Conventional thermal-sprayed MCrAlY coatings are widely used for land-based gas turbine applications against high-temperature oxidation and hot corrosion. Recent…
The operation of electronic packages under exceptionally harsh environments presents a significant challenge for the microelectronics industry, for example, in down-hole, well-logging and turbo-machinery applications. High temperature Au based solders are one potential candidate for die attachment for harsh environmen…
Magnetic anisotropy properties of amorphous ferromagnetic CoSiB/Pt multilayers with perpendicular magnetic anisotropy (PMA, K(u)) were systematically investigated as a function of CoSiB layer thickness (t(coSiB)) and Pt layer thickness (t(Pt)). In two series of [CoSiB t(coSiB)Pt t(P1)]5 multilayers, the perpendicular…
In the authors' previous studies, the theoretical model of ultrasonic wave velocity propagating in plastically deformed solids has been proposed by one of the authors and successively verified experimentally. Then, deformation localization was analyzed by adopting the proposed theoretical model. The onset of localizat…