Materials Literature
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Industrial design is important for industry, especially in the circumstance concerning the human security, of which the material selection and design basing on serious experiments, especially mechanical-tests have drawn more and more attentions of many artists and scientists. In this study, by tension, impact, hardnes…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
In this paper, the tunable thicknesses of quantum dot emitting layer were studied and QD-LEDs based on the optimum thickness of quantum dot layer were fabricated. From the experiment results, the maximum PL intensity is achieved at the spin-coating speed of 1000 r.p.m. The QD-LEDs based on the optimum thickness of qua…
The Ag behaviors of Ag-Al alloy that annealed in air atmosphere have been investigated. Over 600°C, the Ag-Al2O3 composite was prepared. But over 650°C, the size of Ag particles reduced notably. With the annealing time increasing, the amount of Ag particles reduced too. This phenomenon indicated temperature and anneal…
The manufacturing costs of metallic bipolar plates for PEMFC have hindered it from commercialization for long. As the most common sheet metal forming methods, stamping and hydroforming are not popularly dealing metallic bipolar plates. This study focuses on the stamping and hydroforming numerical simulation based on D…
Summary form only given. Ultrananocrystalline diamond (UNCD) films developed and patented at Argonne National Laboratory (ANL) exhibit a unique combination of outstanding mechanical, tribological, electrical, thermal, biological and electron field emission properties, which already resulted in industrial components an…
A tunable BST solidly mounted bulk resonator has been designed, fabricated and characterized using vector network analyzer. The solidly mounted resonator was implemented using an acoustic Bragg reflector of alternating high impedance tantalum oxide and low impedance silicon layers. The films were deposited using spin-…
Basing on the range theory of European Space Agency (ESA) and Touzin's charge deposition theories, a 1-D internal charging model has been employed in simulating the effects of incident electron flux (IEF) and irradiation time on deep dielectric charging (DDC). It is calculated that the distribution of electric field,…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
A series of PI-EP composite materials under different imidization temperature gradients were prepared from 3,3'-diethyl-4,4'-diamino diphenyl methane (DEDA DPM), benzop-henone tetracarboxylic acid dianhydride (BTDA) and epoxy resin (E-51), and thermal imide process was used. Fourier transform infrared spectroscopy (FI…
The problem of the seismic stability of the new IVV.10M research reactor is considered. To computationally prove the viability of the engineering solutions, a detailed finite element model of a reactor is developed in strict accordance with the design documentation. The model represents the actual interrelations betwe…
Numerical simulations are presented, on the dynamic response of a one-tenth scaled tanker double hull structure struck laterally by a knife edge indenter. The small stiffeners of the full-scale prototype are smeared in the small-scale model by increasing the thicknesses of the corresponding plates. The dynamic respons…
The variation in state of degradation of stator winding insulation in induction motor results in the state of unbalance in three-phase stator current at fundamental frequency. The computer simulation model to determine this state of unbalance is subsequently developed and presented in the previous research paper. On t…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
With the evanescent field interaction scheme, graphene is employed to realize passive mode-lockers operating in highpower regime. Also, highly efficient optical deposition and mechanical exfoliation of graphene are demonstrated for ultrafast pulse generation.
Recently two new microwave plasma-assisted chemical vapor deposition (MPACVD) diamond synthesis reactors [1,2] were designed, built and experimentally evaluated and their performance was compared to earlier MPACVD reactor designs [3]. In order to take advantage of the improved CVD diamond synthesis conditions that occ…
The influence of hydrogenation on microstructure and tensile properties of Ti40 alloy has been investigated. The microstructure observation reveals that a new phase called η phase with FCC structure appears at the grainboundaries when the hydrogen content above 0.3 wt.%. With increasing hydrogen contents, the strength…
A series of pine char sulfonic acids were prepared via a two-step procedure involving phosphoric acid catalytic charring of pine sawdusts and successively sulfonation of the charred precursors. Solid sulfonic acid material prepared in this new route possessed high sulfonic acid loading with 2.36 mmol g-1at the optimal…
Optical lenses with freeform surfaces possess good flexibility for design to generate diverse profiles of uniform illumination. However, most of the previous design formulation was applicable only for a single light source without offset. The formulation is extended for the applicability for multiple sources. The prop…
An electron beam with an energy as low as 5 eV and a current of 0.1 mA was produced by an electron source with a 10,000-tip silicon-based field emitter array (Si-FEA). In order to decelerate the electrons, we have designed an electrostatic lens system for the divergent beam extracted from the FEA. Spatial distribution…