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Showing 1 to 20 of 67 for “"thermal oxidation"”.
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Thermal Oxidation of Some Synthetic Triglycerides
Made available in DSpace on 2014-12-05T19:06:48Z (GMT). No. of bitstreams: 1 6104288.pdf: 3868655 bytes, checksum: 938b5db7ed933cf9d99b4aa31ccdaaf8 (MD5) Previous issue date: 1961
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Thermal Oxidation of Methyl Esters of Fatty Acids
Made available in DSpace on 2014-12-05T19:06:46Z (GMT). No. of bitstreams: 1 5900564.pdf: 3779803 bytes, checksum: b7d0aa6edd3adadb61f892441be155dc (MD5) Previous issue date: 1958
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Effectiveness of Thermal Oxidation in Relation to Anterior Cervical Plates
… of bare titanium, aluminum, and vanadium. Thermal oxidation has been shown to improve corrosion-resistance and wear-resistance, depending on temperature and time. To quantify the attributes of the thermally grown oxide layer, Ti-6Al-4V coupons underwent thermal oxidation treatments in an …
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A iron-57 Moessbauer study on the thermal oxidation of iron in biotite mica.
We have studied the oxidation in air of a well characterized biotite sample. Large single crystal wafers were annealed at various temperatures up to 875$\sp\circ$C and for various times up to 94 hours. The oxidation proceeds primarily via the oxyannite reaction: $\rm (Fe\sp{2+} + OH\sp-)\sb{mica} …
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A. Chlorinated Pesticides in Soybeans, Soybean Oil, and Its by-Products During Processing. B. Effect of Thermal Oxidation on Mixtures of Palm and Soybean Oil
A. Soybean samples were collected from seven different locales in Central Illinois and subjected to analysis for chlorinated pesticides. Different parts of the beans showed varying levels of residue concentrations. It was found that pesticide residues had a tendency to accumulate, in descending …
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Experimental investigations of corona-discharge oxidation of silicon
… are desirable features in view of tight thermal budget constraints and the need for precise location of dopants. However, conventional thermal oxidation to grow high quality films usually requires relatively long oxidation times and relatively high temperature. Previous research on …
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Influence of oxidation treatment on the corrosion behaviour of Ti-6AI-4V alloy
… resistance. Surface modifications such as thermal oxidation (TO) and oxygen boost diffusion hardening (OBDH) improve the tribological properties and wear resistance of Ti-6Al-4V. However, surface modification influences the corrosion behaviour of the metal. Therefore, the aim of this …
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A Novel Process for GeSi Thin Film Synthesis
… processing technology e.g., ion implantation and thermal oxidation. A dilute GeSi layer is initially formed by implanting Ge+ into a silicon-on-insulator (SOI) substrate. Thermal oxidation segregates the Ge at the growing oxide interface to form a distinct GexSi1-x thin-film with a composition …
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Design and fabrication of one-dimensional and two-dimensional photonic bandgap devices
… lithography, reactive ion etching and thermal oxidation of AlxGa1-xAs have been employed. The III-V thermal oxide, in particular, is used as an index confinement material, as a sacrificial material for micromechanical fabrication of the air-bridge microcavity, and in the realization of …
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Synthesis and Physical Investigation of Tellurium Dithiocarbamates
… stabilizer for polypropylene (PP) during photo-oxidation. In addition, [Te(dtc)4] were superior stabilizers during thermal-oxidation in comparison to the metal dithiocarbamates such as zinc and nickel dithiocarbamates. It was also found that by changing the alkyl group of the …
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An Evaluation of Tellurium Compounds as Polymer Stabilisers
… compounds on PVC during processing, thermal ageing and UV irradiation was examined by measuring unsaturation, colour and carbonyl formation. These compounds were found to be effective stabilisers during processing and thermal oxidation but they do not lead to good UV stability during …
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Field emission from carbon nanotubes deposited on platinum and nickel/nickel oxide multilayers
… was deposited by e-beam evaporation or grown by thermal oxidation and characterized by Auger electron spectroscopy, x-ray diffraction and ellipsometry. Carbon nanotubes were deposited onto these test structures and current-voltage measurements were taken. Fowler-Nordheim plots were constructed …
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Fabrication and Characterization of ZnO/CuO Core-Shell Nanowire Arrays
… ZnO nanowire arrays were first grown by the hydrothermal method using ZnO seeded substrates. Copper then was deposited on as-grown ZnO nanowire arrays by a DC sputtering method. Thermal oxidation of copper nanofilm was utilized to enable the formation of ZnO/CuO core-shell nanowire arrays. The Cu …
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PROTECTION OPTIMIZATION OF CARBON-CARBON COMPOSITES AGAINST AIR OXIDATION BY COATING WITH ANTI-OXIDANTS
… increase the rate of protection against oxidation. Ki’s’ are comprised of mixing chemical compositions at standard temperature and pressure conditions from group one and two such as Na, K, Ca, Mg, etc. of 5 to 25 wt. %, deionized water from 95 to 75 % by weight, and adding up to 1 % by …
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Development of Iron-Based Soft Magnetic Composites with Novel Coating Materials
… not achieved. An ideal coating system would be thermally stable above the annealing temperature of iron, as well as being able to form a thin, uniform layer on the surface of the base magnetic powder. In this work, existing commercially available SMCs were studied to understand the key heat …
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Processing and Optical Uses of Van der Waals Layered Materials
… modeling with experimentation, we calculate the oxidation rate and uncover the mechanisms of spontaneous oxidation of bulk single crystals of ZrSxSe₂₋ₓ alloys and MoS₂. ZrSxSe₂₋ₓ alloys oxidize rapidly, and the oxidation rate increases with Se content. Oxidation of basal surfaces is initiated by …
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TEM Study of a RTO Oxide-Interfacial Layer on Epitaxial-Cobalt Silicide (CoSi2) Formation
… lot of interest due to its low sheet resistance, thermal stability, low stress state and interfacial uniformity with the silicon substrate. Recently, there has been many studies to investigate the growth of epitaxial CoSi2 on Si using a interlayer material such as Ti (TIME) and SiOx (OME). In this …
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Scalable manufacturing of hierarchical nanostructures for thermal management
… studies provide insights into the size-dependent thermal oxidation process. The proposed mechanism is supported by another interesting geometrical transformation: in the same single-step process, a large void is formed in the particles. The tunable nanowire growth is used to make new kinds of …
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Heterogeneous Metallurgical Patterning of Semiconducting Oxide Nanostructures
… surrounding grain boundaries. The comparative thermal oxidation investigations show distinct growth of semiconductor nanowire/nanofilm network junctions on dezincified Cu70Zn30 substrates compared to the randomZnO nanowires growth on nonetched brass substrates. The grain boundary region is …
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Surface Engineering of Zirconium for Tribological Properties Enhancement
… current research, no sufficient information on thermal oxidation and carburising of Zr has been released in open literature. In this research better wear resistances have been achieved for surface engineered zirconium using Thermal Oxidation (TO) and Pack Carburising (PC) treatments. Two surface …
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