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Showing 1 to 20 of 23 for “"Solid-state reactions"”.
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Kinetic Studies on Solid State Reactions of Chromium Complexes
Made available in DSpace on 2014-12-10T23:00:52Z (GMT). No. of bitstreams: 1 7105130.pdf: 5457886 bytes, checksum: e2a36cd4e17449190f5817abee068ecb (MD5) Previous issue date: 1970
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Solid State Reactions Forming the (Lead, Strontium) (Titanate) (Zirconate) Solid Solution
Made available in DSpace on 2014-12-10T17:32:36Z (GMT). No. of bitstreams: 1 6808097.pdf: 2222649 bytes, checksum: 794a0d754cc8d9d51e9b5a3196765253 (MD5) Previous issue date: 1967
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Effects of high energy mechanical milling on the kinetics of solid state reactions
… energy mechanical milling on the kinetics of solid state reactions in two binary metallic systems, Al-Ni and Cu-Al, and two metal-oxide systems, Al-TiO₂ and Cu(Al)-CuO, have been investigated by using X-ray diffractometry (XRD), differential thermal analysis (DTA), differential scanning …
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High-pressure studies of solid state reactions in organometallic copper(II) and nickel(II) systems
The continuing importance of solid state materials has prompted greater interest in the understanding of fundamental processes which occur in the solid state. Phase transitions and reactions are crucial to the properties, production, and processing of solid state materials and yet remain phenomena …
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An Investigation into Topological Crystals and Flat Band Systems
… materials included the implementation of solid state reactions, flux growths, and chemical vapor transport growths. For these systems, the predicted physics, as well as the design, execution, and characterization of quantum material synthesis will be presented.
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Effects of solid solution on the high-low inversion of cristobalite and the stabilization of high cristobalite
… and BPO₄ into the cristobalite phase using solid state reactions. The combination of TiO₂ and AlPO₄ proved to be most effective in lowering the inversion temperature of cristobalite. Phase diagrams at the high silica corner were constructed for the respective systems. High cristobalite was …
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Reactions of thin film bilayers of nickel on silicon-germanium alloys
Solid state reactions between 1000A thick Nickel films and 4000A thick amorphous Si$\sb{\rm 1-x}$Ge$\sb{\rm x}$ films, deposited with the Molecular Beam Epitaxy (MBE) technique, are examined with the novel use of two in-situ analytical techniques: An in-situ 4-point probe resistance measurement, …
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Structure and reactivity of selected organic inclusion compounds
… Lattice energies were calculated in some cases. Solid state reactions were performed with the host 1,1 ,6,6-tetraphenylhexa-2,4-diyne-1 ,6-diol and selected solid guests. The resultant complexes were analysed using X-ray powder diffraction. Guest exchange reactions were also performed and the …
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Determination of the synthesis diagram of sodium cobalt oxide and electrochemical study
… at various temperatures from 450°C to 750°C by solid-state reactions with initial Na:Co ratio ranging from 0.60 to 1.05. Four monophasic domains of' O3, O3', P3' and P2 and four biphasic regions were revealed based on an XRD analysis. The sodium contents in these phases were determined according …
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Design and Assembly of Nanostructured Complex Metal Oxide Materials for the Construction of Batteries and Thermoelectric Devices
… when traditional synthetic methods such as solid-state reactions have been employed. Solid-state reactions usually proceed at extremely high temperatures that are not particularly conducive to forming nanostructures. The first part of this thesis presents novel solution-based synthetic …
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Studies of clay minerals and their decomposition products
… stages of dehydroxylation, structural consolidation, and recrystallisation of illite, montmorillonite and hectorite upon thermal treatment to 1300 C were investigated. Dehydroxylation of the clay minerals occurred between 450 and 750 C, the X-ray crysdallinity of illite and montmorillonite …
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The synthesis of beta alumina powders
Beta alumina solid electrolyte material is conventionally synthesized by the high temperature solid state reaction of α-Al₂O₃ with soda and a stabilizer ion such as lithia or magnesia. This reaction requires a reconstructive transformation of the α-Al₂O₃ oxygen sublattice and results in a two-phase …
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Beyond Flash Joule Heating: Advanced Non-equilibrium Synthesis and Electron Microscopy Characterization
… generality, and an inability to facilitate non-solid-state reactions. To overcome these limitations, several innovative strategies have been developed. One notable approach involves introducing immiscible conductive additives, specifically copper (Cu), into highly resistive amorphous boron (B), …
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The use of red tropical soils as pozzolanas: reactions, products and properties
Nineteen red tropical soils from the States of Paraiba and Pernambuco which are located in the North East of Brazil were treated with high calcium lime, they reacted showing a wide range of variation of maximum unconfined compressive strengths with - 4.5% or 6.0% lime generally required to produce …
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On the way to molecular optical switches : a solid state NMR study of trans-cinnamic acids
Stereospecific light-driven reactions have gained attraction because of a potential application in optical memory storage systems. This field of research is motivated by the pursuit of miniaturization of high capacity storage systems, with the conventional technique soon reaching its limits. In …
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Carbon deposition on transition metal- and uranium-oxides
… with a view to furthering knowledge of catalytic reactions that may occur within an AGR. In particular, the effect of mixed valency on deposition rates was studied. The spinels were successfully prepared by solid state reactions between the relevant oxides, oxalates and I or carbonates. A range of …
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Dielectric Breakdown of Silver Azide
… kinetic data, both isothermal and dynamic, from solid state reactions. Parallel observations, in less detail, suggest that dielectric breakdown and explosion initiation by similar mechanisms occur in thallous and probably in lead azides. It is a possibility that breakdown of long incubation …
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Untersuchung der topotaktischen Reaktion von Calciumdisilicid mit Ammoniumbromid
Im Rahmen der vorliegenden Arbeit ist es gelungen, ein Siliciumsubnitrid der Summenformel Si2N chemisch und strukturell zu charakterisieren. Die braune, metastabile Verbindung ist über eine topotaktische Reaktion aus der Zintl-Phase Calciumdisilicid und Ammoniumbromid im molaren Verhältnis 1:2 …
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Solid state interaction between thin metal films and SiO2 substrate.
… and X-Ray Diffraction (XRD) to determine whether solid state reactions took place and to identify the compound phases formed. It was found that Y, Yb and Zr reacted with the S1O2, while none of the other metals reacted even after heating for hours at high temperatures of up to 900° C. These …
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Studies on the thermal decomposition behaviour, kinetics and electrical conductivity of the non-isothermal decomposition of pyridine mono carboxylic acids and some of their transition metal complexes
… is a general introduction to the study of solid state reactions. The Second Chapter is devoted to the materials and experimental methods that have been used for carrying out tile experiments. TIle Third Chapter is concerned with the characterisations of free ligands (Picolinic acid, …
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