Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Molecular electronics uses organic molecules to replace inorganic electrical components in circuits. Molecular electronics is a promising field that can extend the Moore’s law since scaling down transistors with molecules is comparatively easier than inorganic componnets fabricated using optical lithography.\nThis the…
Bu calismada, porfirin makro halkasina β- (2-) veya mezo- konumlarindaki fenilhalkalari uzerinde farkli sayida BODIPY gruplarinin bulundugu yeni bilesiklerinsentezlenmesi amaclanmistir. Mono substitue bilesiklerde BODIPY grubunun baglanmakonumunun (β- veya mezo-), 2- konumundan baglanmada porfirin halkasininmerkezinde…
In this study, the effect of milling time and compaction pressure on the densification and morphology of Al2O3-TiO2 composite was evaluated. The composite was produces using powder metallurgy route via low energy ball milling and cold compaction. The milling time and compaction pressure was varied at 15, 30, 45 and 60…
Due to the high number of fatigue load cycles during the life of a wind turbine blade, fatigue is one of the main design concerns. However, it is still not possible to realistically predict the fatigue life of the non-crimp fabric based fibre composites commonly used for the main load carrying parts of wind turbine bl…
The present work investigates the characterization of alumina titania carbon nanotube (Al2O3–TiO2–CNT) composite prepared by powder metallurgy (PM). The properties of Al2O3-TiO2 composite have high hardness, chemical and thermal resistance, wear and corrosion resistance. This made Al2O3–TiO2 composite used in various…
En esta tesis doctoral se ha optimizado el desarrollo de catalizadores basados en cobre y óxidos mixtos BaTiO3 con estructura perovskita para ser utilizados en la eliminación de los NOx, emitidos por los vehículos diésel, mediante el proceso de almacenamiento y reducción de NOx (NSR). La actividad de los catalizadores…
Radon is one of the radiation sources which occurs naturally in the environment. It is a form of radioactive gas and one of the contributors for lung cancer besides smoking due to the emission of alpha particles. Radon (Rn-222) can be found in common building materials such as the red bricks and it is derived from the…
Two-dimensional materials are extensively researched as they exhibit unique physical and chemical properties, such as energy gap change, load carrier concentration, conductivity, and change in the structure of energy bands. Transition metal dichalcogenides (TMDs) are among the most distinguished materials for the deve…
As the last experiment before the final shutdown of the TEXTOR tokamak, equipped with all-graphite plasma-facing components (PFCs), MoF6 had been injected into the vacuum vessel. During decommissio ...
In dieser Arbeit wurden Oligothiophen-Analoga synthetisiert und deren Verhalten sowohl im unbelebten als auch belebten System analysiert. Bei diesen Materialien handelt es sich überwiegend um thermotrope Flüssigkristalle. Temperaturabhängige Aggregationsstudien in Lösung ließen einen Rückschluss auf den dabei zugrunde…
Import 23/08/2017
In order to improve the stability, safety and required performance of lithium-ion batteries many novel glass and glass-ceramic materials are being investigated for their potential use as a solid electrolytes [1, 2]. Ternary ion conducting 40Li2O–(60-x)P2O5–xGeO2, x=0–25 mol%, glasses have been chosen as a model glass…
In the aerospace industry, major composite structural components are manufactured by Automated Fibre Placement (AFP), which is an automated material deposition process laying up slit prepreg tapes on a mould. Dry fibre material has emerged as a promising alternative to prepreg for AFP with, among others, the claimed b…
The current environmental situation has been a growing concern for the World population, as the extent of its damages are being increasingly felt. Plastics represent one of the major classes responsible for this scenario, given their petrochemical base, widespread usage, and inefficient and incorrect manners to deal w…
Present work reports the Na-23, Si-29 NMR studies on the Sr0.55Na0.45SiO2.775 along with PXRD and ionic conductivity studies. NMR results indicate that Sr0.55Na0.45SiO2.775 consists of two phases, one being insulating alpha-SrSiO3 and other being a Na+ conducting amorphous Na2Si2O5. High temperature heat treatment of…
This dissertation presents the research work aimed at developing functional submicrometer thick SiOx barrier coatings for the corrosion protection of stainless steel substrates in chloride containing media, which may enable the use of stainless steels as plate material for marine heat exchangers, and thus lower the co…
This project focused on optimization of the deposition of platinum (Pt) thin films or use in piezoelectric MEMS/NEMS devices. Theory of piezoelectric, DC and DC-pulsed sputtering and thin film characterization was studied. Two parameters were varied in the deposition of the Pt thin films: gas flow and applied target p…
This paper presents a concept to make laminates with overlacing aspects similar to those of woven laminates, using AFP. The procedures to make cross-ply plain weave, triaxial and quasi-isotropic laminates are presented. Mechanical tests were conducted based on ASTM standards on these special quasi-isotropic laminates…
has provided me with time to relax and clear my mind, and for creating
III-V semiconductors have higher charge carrier mobilities than silicon and are used in photovoltaic devices, optical sensors, and emitters. The high injection velocities obtained with III-V channels allow for faster transistors with low power consumption. However, the large-scale implementation in electronic devices…