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Showing 1 to 12 of 12 for “"deposition mechanism"”.
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Rare earth oxide thin films from solution based inorganic precursor deposition as potential candidates for insulators in advanced gate stacks : deposition mechanism and performance studies
Selten-Erd-Oxid Dünnschichten oder generell Materialien mit hohen Dielektrizitätskonstanten sind in der Diskussion zum Ersatz von SiO2 als Gate-Oxid in MOSFETs, um eine weitere Miniaturisierung bei gleichzeitiger Leistungssteigerung zu gewährleisten. In dieser Arbeit wurde ein neuartiges …
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ΕΝΑΠΟΘΕΣΗ ΑΜΟΡΦΟΥ ΥΔΡΟΝΩΜΕΝΟΥ ΠΥΡΙΤΙΟΥ ΣΤΗΝ ΕΚΚΕΝΩΣΗ ΑΙΓΛΗΣ ΤΟΥ ΣΙΛΑΝΙΟΥ. ΡΟΛΟΣΤΩΝ ΕΝΕΡΓΩΝ ΕΝΔΙΑΜΕΣΩΝ
… THE PROCESS OF PLASMA ENHANCED CHEMICAL VAPOUR DEPOSITION OF AMORPHOUS HYDROGENATED SILICON FOR HIGH EFFICIENCY SOLAR CELLS. NAMELY, OUR EFFORT IS TO CORRELATE MACROSCOPIC DEPOSITION PARAMETERS WITH MICROSCOPIC PLASMA PARAMETERS AND THE DEPOSITED FILM CHARACTERISTICS. FOR THIS PURPOSE WE …
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URANYL DEPOSITION IN UNCONFORMITY-RELATED DEPOSITS IN THE ATHABASCA BASIN: EVIDENCE FROM URANIUM SPECIATION IN HEMATITE AND GOETHITE
… their reduction to sparingly soluble U4+ as the deposition mechanism. However, the questions of when and how this reduction in most uranium deposits such as those in the Athabasca basin (Canada) occurred are often not clear. The unconformity-related uranium deposits in the Athabasca basin are …
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Characterization of battery anode materials by X-ray and electron-based imaging techniques
… shrinkage would be expected. Secondly, lithium deposition at the Li/separator and at the Li/carbon matrix interregion was discovered by synchrotron X-ray tomography. A higher concentration of widely distributed deposition sites was found under an increased deposition density. The morphology and …
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Synthesis and Characterisation of N-substituted Pyrrole Monomers and Polypyrrole Films
… metal complexes, were performed. Polymer deposition was executed, utilising the electrochemical deposition technique, due to its facile use and the unequivocal control attained during the experimental procedure. The pyrrole monomers employed, possessed either azide, 2,2’-bipyridine or …
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Microchemical systems for understanding of multiphase flows in upstream hydrocarbon and natural gas productions
… dispersion number and the Bodenstein number. The deposition and dissolution of asphaltenes in porous media, an important problem in science and macromolecular engineering, was for the first time investigated in a transparent packed-bed microreactor (μPBR) with online analytics to generate …
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Dielectric materials by Atomic Layer Deposition for microelectronic applications
The Atomic Layer Deposition (ALD) is an innovative technique to deposit thin film materials for several application fields. The rapid affirmation of the ALD process is related to the peculiarities of the deposition mechanism. In particular, because of the self-limiting principle and of the …
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Towards an understanding of mass transfer and hydrodynamics in packed bed reactors using Nuclear Magnetic Resonance
… into factors that affect the process of fines deposition and mass transfer inside packed beds to ultimately enable optimisation of these processes. Although mass transfer correlations exist for pure components and mixtures, previous studies have failed to measure the mass transfer coefficient …
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Chemical vapor deposition of β-SiC thin films on Si(100) in a hot wall reactor
A systematic method was developed for the deposition of β-SiC thin films on Si(100) substrates in a hot wall reactor, using low pressure chemical vapor deposition (LPCVD). Due to poor adhesion resulting from lattice mismatch and difference in thermal expansion coefficients between the (SiC films …
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Development of aromatic polyesters for high performance applications and use of interchain transesterification reactions as a solid-state fabrication tool
Deposition and cure of aromatic thermosetting copolyester (ATSP) oligomers is explored across several potential schemes: plasma spray, solvent-borne, and as an electrostatic powder coating. It is generally found that all methods are potentially viable as low friction, low wear coatings but that …
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Characteristics of bloodstains on waterproof fabrics
… blood assay to detect the remaining traces. Four mechanisms of blood deposition created bloodstains with different characteristics. Differences were observed among the variety of waterproof fabrics as well as the different absorbent fabrics. Bloodstains on the waterproof fabrics appeared to rest …
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Gold mineralization in the Um El Tuyor area, South Eastern Desert, Egypt
… low and provided favourable conditions for gold deposition. It is interpreted that sulphidation has affected the gold solubility via changes in oxygen fugacity through redox reactions. The advanced stage was most likely a phase of intense sericitization (after chlorite), which consumed K+, …