Materials Literature
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There are some fatigue damage estimation methods of an austenitic stainless steel that uses martensitic transformation. For instance, those are the remanent magnetization method, the excitation method, and so on. Those two methods are researched also in our laboratory now. In the remanent magnetization method, it is w…
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 Yu Matsuda, Yasuteru Fukawa, Mitsuru Kawashima, Seiji Kojima; Fragility Variation of Lithium Bora…
Poly(butylene adipate-co-terphthalate) (PBAT) is a biodegradable polymer with high ultimate elongation but low modulus. This paper demonstrates that the addition of nano-sized clay can improve the modulus without significantly decreasing the tensile strength and biodegradability of the PBAT , while offering enhanced b…
The interior design of motor vehicles depends mostly on the appearance and properties of fabric with prevailing woven articles. When upholstering motor vehicle seats and interiors fabrics mostly constitute the exterior part of these interiors, as so-colled original covers. These fabrics belong to the group of technica…
A theoretical model is introduced to derive the ME voltage coefficients of bilayer in free state according to the constitutive equations of magnetostrictive and piezoelectric phases. Using this model, the ME voltage coefficients of La07Sr03MnO3(LSMO)-PZT and Tb1-xDyxFe2-y (TDF)-PZT bilayers have been calculated and…
The work is devoted to increase of foundry properties of secondary silumins. The influence of a chip contents in charge, quantities of iron in an alloy and the modifier used for processing of liquid metal, on fluidity, linear shrinkage, crack resistance and a porosity number of silumin AlSi9Cu2 is considered.
This study investigated the effects of nano TiO 2 in self-cleaning leathers. Nano TiO 2 was applied as a top coat to white goat leathers at 25%, 50%, 75% and 100% ratios, based on the amount of lacquer emulsion. To observe the self cleaning effect, the leather samples to which nano TiO 2 had been applied and control s…
Well aligned ZnO nanorod arrays on Si substrate previously coated with a thin buffer layer of ZnO seeds via radio-frequency magnetron sputtering, which were synthesized by the aqueous solution method. The sample was characterized by scanning electron microscopy, X-ray diffraction, high-resolution transmission electron…
The mathematical models of the strength of fancy yarns with continuous effects (plied twoand three-component yarns and loop yarn) were developed on the basis of the mechanical rules, phenomena occurring between the staple fibres in the component yarns and the final structure of fancy yarns. Three types of distribution…
Under DC current biasing the additional losses of power transformer increase significantly, as a result the loss of iron core can not be identified from the no-load loss correctly. It is necessary to establish an accurate model of the iron core to evaluate its possible overheating problem. Based on the Jiles-Atherton…
Using 1,4-butanediol as initiator,boron trifluoride etherate as catalyst and CH2Cl2 as solvent,poly(3-nitratomethyl-3-methyl oxetane)(PNIMMO) was prepared by 3-nitratomethyl-3-methyloxetane via cationic ring-opening polymerization.The effect of molar ratio for catalyst and initiator,reaction temperature and the droppi…
In order to explore the relationship between parameters of UHF signals and discharge magnitude of pulse current in partial discharge(PD)detection in oil-paper insulating power equipment,the differences of principle between current pulse measurement and UHF measurement in PD is introduced.Four typical PD models are con…
LS-DYNA3D finite element code was employed to simulate the detonation drive of a certain high explosive projectile with prefabricated fragments,and Euler fluid coupled Lagrange rigid body method and discrete fragments model building method were adopted in essence.At the global coordinate system,the flight velocity and…
ESR measurements under tensile deformation of vulcanized rubber were carried out by the combination of homebuilt stretching machine with commercially available ESR spectrometer. The changes of radical concentrations during tensile deformation were successfully evaluated by this technique. It was found that the destruc…
Methyl ethyl ketone peroxide (MEKPO) has highly reactive and unstable exothermal features. In recent years, it has caused many thermal explosion and runaway reaction accidents in manufacturing processes. Hydrogen peroxide (H2O2), dimethyl phthalate (DMP), and methyl ethyl ketone (MEK) were applied to manufacture MEKPO…
In the absence of any solvent, the reactions of various aromatic aldehydes with 5,5-dimethyl-1,3cyclohexanedione catalyzed by methanesulfonic acid under thermal heating conditions smoothly afforded 9-aryl-3,3,6,6-tetramethyl-tetrahydroxanthene-1,8-diones in nearly quantitative yields. Under the same melting conditions…
Ag doped ZnO films (ZnO：Ag) were deposited on quartz glass substrates by ultrasonic spray pyrolysis technology. Zn(CH3COO)2 and Ag(NO3)3 aqueous solution were used as the sources of Zn and Ag， respectively. The effect of substrate temperature on structural， electrical and optical properties of ZnO：Ag films were studie…
We have developed sample pretreatments for silk for radiocarbon dating. Characteristics of silk under different types of pretreatment were investigated, as well as the behavior of dye and possible contaminants. We found that dye could be removed completely, together with all other foreign materials bigger than 1.2 μm,…
The reaction of Ta metal with potassium nitrate melts at 600 o C has been studied. It was established that the composition of the reaction product could be varied by an appropriate choice of the base-acid properties of the melt, which were regulated by additions of potassium hydroxide. Pure potassium metatantalate KTa…
Supercapacitors in parallel with lead-acid batteries provide greater capacity in lesser volume; cold cranking improves. Lower effective series resistance (ESR) gives greater net capacity. Laboratory experiments and road tests on reduced-volume batteries ganged with supercapacitors demonstrate the practical and economi…