Materials Literature
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The high sintering temperatures required for solid-state derived powders is a significant obstacle inhibiting more widespread use of single pure phase BaZrO 3 with high density. The aim of this research was to reduce the sintering temperature whilst maintaining pure single phase BaZrO 3 . By using of sintering aid, su…
The effects of temperature and relative humidity on regenerated cellulose had been investigated in detail in the present work. From experimental results, it was shown that with increasing of RH within temperature range of 35~65°C, storage modulus E r decreased, loss tangent tanδ increased. This indicated that water mo…
Abstract. The utilization of some special animal fibers including cashmere, yak hair, camel hair, rabbit hair and feathers is illustrated by literature and the archaeological discoveries. The utilization of cashmere, yak hair and camel hair can be traced back to about 4000 years ago or even earlier; rabbit hair textil…
Recently, a novel diesel particulate filter with catalyst coating draws much attention as its great performance of reducing diesel soot. In this paper, we established a mathematical model to predict and describe the pressure drop of DPF, soot loading and regeneration process. The results shows that: the model could ef…
The transverse vibration of a nanobeam subject to initial axial compressive forces based on nonlocal elasticity theory is investigated. The effects of a small nanoscale parameter at molecular level unavailable in classical mechanics theory are presented and analyzed. Explicit solutions for natural frequency, vibration…
As the quality of yarn and the fiber indicators are nonlinear relationship, the traditional mathematical models or empirical formula has been unable to accurately resolve the problem. In view of artificial neural networks do not need to build accurate mathematical models, applicable to solving the problem of yarn qual…
X80 pipeline steel specimens were treated by electrochemical hydrogen charging under various current density and charging time. The polarization resistance and corrosion rate of X80 steel were analyzed in Yingtan simulated soil solution under the different hydrogen charging conditions. The results showed that hydrogen…
The eco-friendly cattail technical fiber obtained through degumming process, could meet the basic spinning conditions in aspects of fiber length, thickness and strength etc. It was difficult for cattail fiber to spin by itself. The cattail fiber blending with cotton was spun on ring spinning machine according to four…
In order to explore the filtration performance of woven filter cloth to provide a design basis for filter cloth, the relationship of water permeability of filter cloth and fabric structural parameters is analyzed and studied by measuring the mass of water through the filter cloth within a specified time. The results s…
Tensile strength of the viscose fibers is significantly influenced by the environment moisture. In this paper, single-fiber strength tester and single-yarn tester were adopted to test the strength of the viscose fiber and filament with different moisture contents. The results showed that the strength property of visco…
In this paper, three oxidation processes were employed in kenaf degumming. The properties of degummed fibers such as fineness, residual lignin content were tested, and the degumming effects were analyzed by XRD and IR spectroscopy. The crystallinity of kenaf fiber increased after being treated. The addition of the str…
A pulsed electromagnetic apparatus has been designed and fabricated for the non-destructive evaluation of stress concentration in ferromagnetic material. The apparatus consists of a sensor, a pulsed field generator and a data acquisition system, which is developed in the LabView environment using a data acquisition ca…
Optical properties of homeotropically aligned flexoelectric nematic layers deformed by dc electric fields were analyzed by calculating the phase difference ΔΦ between ordinary and extraordinary light rays passing through a layer placed between crossed polarizers. A phase difference arises when the bias voltage U excee…
0.92(Na 0.5 K 0.5 )NbO 3 –0.06BaZrO 3 –0.02(Bi 0.5 Li 0.5 )TiO 3 (NKN–BZ–BLT) thin films were fabricated on a (111)Pt/Ti/SiO 2 /(100)Si substrate by pulsed laser deposition (PLD). The quality of the NKN–BZ–BLT thin films was improved by introducing an NKN–BZ–BLT buffer layer, which was deposited at a high substrate te…
The giant magnetostrictive material (GMM) is a novel smart material based on magnetostrictive effect, and it is well suited to power ultrasonic transducer. Based on electromagnetic theory and vibration theory, the design and working principle of the magnetostrictive power ultrasonic transducer has been explained. This…
Piezoelectric materials should have stable performance during electric cycling in service. Because piezoelectricity-related properties depend on the ferroelectric domain structure, it is essential to investigate the fatigue characteristics of domain structures under electric loading. Piezoresponse force microscopy (PF…
Abstract In order to improve the hydrophilic and elastic properties of polyester networks, the amorphous polymer networks of hydrophobic polyester/hydrophilic poly(ethylene glycol) dimethacrylate (PEGDMA) were prepared by UV‐photopolymerization of PEGDMA and poly[( D,L ‐lactide)‐ co ‐glycolide]tetraacrylate (PLGATA).…
Abstract The effect of the presence of diluent during network formation on the gel‐point conversion, α crit , and on the equilibrium elastic modulus was studied using polyurethane networks from star‐shaped polyols and a star‐shaped triisocyanate. The dependence of α crit on reciprocal concentration of functional group…
The influence of temperature and time of dry-heat and wet-heat processing on the tensile property of the PLA fibers was investigated. The results indicate that as the temperature and time increase, the tensile strength of the fibers gradually decreases. When the temperature is above 100 °C or time over 20 minutes, the…
This paper study the synthesis and mechanical characterisation of steel (0.6% C) having lower than 1-micron grain size. There was severe plastic deformation in high pressure planetary ball milling and consolidation for obtaining bulk samples at temperatures between 350°C and 500°C. Studying grain size evolution showed…