Materials Literature
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In the present study, the fluid field in a process of fabricating diamond coated cutting tools using the hot filament chemical vapor deposition (HFCVD) method is investigated using the finite volume method (FVM), in which the effects of the inlet height, gas initial velocity, inlet radius and arrangement are illustrat…
To study the durability of reinforced concrete structures under coupling effect of load and environmental, an analog device is developed. Device includes sustained loading, accelerated environmental corrosion and measuring systems. The load applied to the column is real-time monitored by the pressure sensor and compen…
Reverse micelles (RMs) containing aqueous solutions of Ag+ ions in their core produce fluorescent Ag nanoclusters (NCs), upon exposure to gamma irradiation. The fluorescence spectra of the NCs evolve over days to weeks after the exposure, and usually show large increases in intensity. Responses of as high as 2.8 × 104…
Effect of loading rate on bond property between corroded concrete and steel bar are studied. Simulation test and finite element are used to study the pull-out test of corroded reinforcement concrete members in present literature. Considering the corrosion of steel bar and concrete and their rate dependent characterist…
The degradation of chlorpyrifos is investigated with the treatments of sonolysis, ozonolysis, and sonolytic ozonolysis at various frequencies. Results show that there exists frequency effect in sonolytic ozonolysis. In sonolytic ozonolysis, the maximum degradation rate is obtained at 495 kHz, and the degradation kinet…
Sulfur-doped nanoTiO2 transparent hydrosol with an average particle size of 3.8 nm was synthesized by a novel complexation-controlled hydrolysis method at room temperature and atmospheric pressure by using TiCl4, thiourea, organic carboxylic acid, NH3 H2O, D-sorbitol etc. as raw materials. The composition, phase struc…
We consider a system of particles interacting via a purely repulsive, soft-core potential recently introduced to model effective pair interactions between dendrimers, which is expected to lead to the formation of crystals with multiple occupancy of the lattice sites. The phase diagram is investigated by density-functi…
Emerging coherent X-ray scattering patterns of single particles have shown dominant morphological signatures in agreement with predictions of the scattering model used for conventional protein crystallography. The key question is if and to what extent these scattering patterns contain volumetric information, and what…
Solid Oxide Fuel Cells (SOFC) and gas turbines (GT) can be directly coupled to form efficient hybrid power plants providing electricity based on various fuels.The operation of such a hybrid power plant theoretically allows for electrical efficiencies in the range of 70 %.To ensure stable and efficient system operation…
Emerging coherent X-ray scattering patterns of single-particles have shown dominant morphological signatures in agreement with predictions of the scattering model used for conventional protein crystallography. The key question is if and to what extent these scattering patterns contain volumetric information, and what…
The complex interplay between several active degrees of freedom (charge, lattice, orbtial and spin order) is thought to determine the electronic properties of many oxides, but the respective role of the various contributions is often extremely difficult to determine. Vanadium dioxide (VO$_2$) is a particularly notorio…
This chapter contains sections titled: Introduction Experiment Rietveld Refinement Details Results and Discussion Conclusions
Using a classical treatment based on Newton and Maxwell's equations, Meissner effect is shown to stem from persistent eddy currents. This work makes \textit{no use} of London's equation. The penetration depth of the magnetic field is found to differ markedly from London's length and to depend on \textit{experimental c…
In solar cell technology, the current trend is to thin down the active absorber layer. The main advantage of a thinner absorber layer primarily is the reduced consumption of material and energy during production, but also the increased production rates and lower cost. While this is of interest to all photovoltaic tech…
自2010歐洲RoHS 2.0法規正式生效，完全限制可販售的電子產品中的鉛含量。絕大多數電子印刷電路板與組裝業者，為了符合產品無鉛化法規的規範，陸續的升級自我的相關生產設備與製程能力，以符合法令與市場的要求。 在已揭露的無鉛化製程的相關議題中，無鉛焊料的選用具有相當重大的影響力，其不只關係著後續的熱組裝製程中的設備、元件材料的選用，更是關係著產品的可靠度與生命週期。由於錫- 3.0wt％銀- 0.5wt％ 銅銲料具有優異的焊接與機械性質，被絕大多數的相關研究機構與協會推薦為無鉛製程的最佳選擇，因此被廣泛地在基板組裝業界中使用，嚴然成為業界的標準無鉛銲料。 再者，因為鉛元素的含量被嚴格限制，傳統的錫鉛噴錫板(HASL)也被禁止使用，…
L’optimisation des microstructures de surface est un facteur primordial pour ameliorer les proprietes et la duree de vie des materiaux. Pour le traitement des aciers inoxydables, la nitruration est un procede adequat permettant l’augmentation de la durete et de la resistance a l’usure par formation d’une austenite «ex…
Se toman 441 muestras para el analisis de conodontos y 162 para el estudio de laminas delgadas de nueve sucesiones pirenaicas perteneciente a las Areas de Subfacies Sierra Negra, Renanue y Compte. Como resultado de ello se describen 86 taxones de Ancyrodella, Icriodus, Klapperina, Mesotaxis, Ozarkodina, Polygnathus, S…
This project documents the attempted implementation of a new optically stimulated luminescence (OSL) system. The system comprised aluminium oxide OSLDs (without cassettes) and a reader. The primary aim was to improve upon the reader’s simple internal dose calculation. The secondary aim was to uncover practical conside…
Kohlenstoffnanoröhren (CNTs) werden aufgrund ihrer hohen spezifischen Oberfläche, ihrer einzigartigen geometrischen und elektronischen Struktur und der hohen chemischen Sta- bilität als vielversprechende Materialien zur Anwendung in der heterogenen Katalyse diskutiert. Struktur und intrinsische Eigenschaften ihrer…
Accès restreint aux membres de l'Université de Lorraine jusqu'au 2015-09-20