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Showing 1 to 20 of 123 for “"Borate"”.
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Economics of the domestic borate industry, The
Includes bibliographical references.
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Crystallization Kinetics in Binary Borate Glass Melts
Made available in DSpace on 2014-12-12T00:32:34Z (GMT). No. of bitstreams: 1 7317608.pdf: 7261532 bytes, checksum: a7ac8ba506e0eb918ae19d2398bfebbc (MD5) Previous issue date: 1973
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Investigation of Structure in Lead Borate Glasses
Made available in DSpace on 2014-12-05T22:57:02Z (GMT). No. of bitstreams: 1 5904516.pdf: 2079601 bytes, checksum: 384ad60e21f1eb1eb07fad7053980e46 (MD5) Previous issue date: 1959
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Electron transfer in cyanine borate ion pairs
… studies are cyanine dye acceptors and tetraarylborate donors (see below for representative examples). The two ions are dissolved in a nonpolar solvent to assure a contact ion pair structure. The cyanine is then irradiated, and this induces the electron transfer process. The electron transfer can …
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The effect of composition on the viscosity, crystallization and dissolution of simple borate glasses and compositional design of borate based bioactive glasses
<p>"Borate glasses have recently been developed for a variety of medical applications, but much less is known about their structures and properties than more common silicate glasses. Melt properties and crystallization tendency for compositions in the Na<sub>2</sub>O-CaO-B<sub>2</sub>O<sub>3</sub> …
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Borate based bioactive glass scaffolds for hard and soft tissue engineering
… of this dissertation were to evaluate bioactive borate glass scaffolds for hard and soft tissue applications and determine the potential toxicity of the borate glasses on the adjacent and systemic tissues. Porous randomly oriented fiber scaffolds composed of bioactive borate glass were implanted …
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Volume Changes Accompanying the Melt-Crystal Transition in Binary Borate Melts
The volume changes accompanying the crystallization of PbB(,4)O(,7), BaB(,4)O(,7), Li(,2)B(,4)O(,7), Cs(,2)B(,6)O(,10) and Na(,2)B(,8)O(,13) were determined throughout the crystal growth range. The elevated temperature specific volumes of the crystals were calculated using x-ray unit cell densities …
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Borate polyanion-based systems as Li- and Mg-ion cathode materials
The aim of this thesis is to investigate pyroborates, M2B2O5, and orthoborates, M3(BO3)2, where M = Mg, Mn, Co, Ni, as high capacity and high voltage Li- and Mg-ion cathode materials. We explore the layered orthoborates (M3(BO3)2 which, to our knowledge, have not been previously considered as Li- …
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Fundamental properties of borate-modified oriented strandboard manufactured from southern wood species
… conducted to examine the effects of powder zinc borate (ZB) and calcium borate (CB) on resin gel time, strength, swelling, leaching, termite, decay, and mold resistance properties of oriented strandboard (OSB). It was found that gel time of phenol formaldehyde (PF) resin decreased with increased …
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Dynamic Light Scattering in Alkali Borate Glass Melts Near the Glass Transition
… Among the different types of glasses, borate glasses are particularly interesting due to their low melting temperature, high chemical durability, and potential for optical and electronic applications. However, the properties of borate glasses are strongly influenced by their dynamics, …
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Non-silicate porous glasses obtained by the leaching of borate-rich glasses
Glasses of the composition Na₂O-B₂O₃-X-Y and Na₂O-B₂O₃-Al₂o₃-X-Y were made where X and Y are two of the oxides CeO₂, HfO₂, ThO₂,Y₂O₃,ZrO₂ or Ga₂O₃. The glasses were either quenched or heat treated to promote phase separation and/or crystallization. The materials were subsequently leached in …
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Structural and mechanistic studies of nickel-borate thin-film oxygen evolving electrocatalysts
… of its preparation as a thin film from aqueous borate-buffered solutions of Ni₂ . Electrochemical and in situ X-ray absorption near-edge structure (XANES) studies of this nickel-borate (Ni-Bi) catalyst indicate that upon initial electrodeposition, Ni centers in the film exist predominantly in …
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Advanced Materials for High-Energy Rechargeable Batteries: Borate Polyanion Cathodes and Silicon Anodes
… major parts: the development and evaluation of borate-based cathodes for RMBs, and the investigation of mechanical degradation in silicon anodes for LIBs. The first part presents a comprehensive study on borate polyanions as potential cathode materials for RMBs. Three structural families were …
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Electrochemistry of systems containing aluminum phosphate dissolved in fused borate and phosphate mixtures
… containing aluminum phosphate dissolved in fused borate and phosphate mixtures. Aluminum coated metals combine the mechanical properties of the base metal and chemical resistance of aluminum. Electroplating, gives an even and controlled thickness of coating and imparts corrosion resistance. …
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Dynamic Light Scattering Study of Structural Effects on the Dynamics of Potassium Borate Glass
… viscoelastic properties of potassium borate glass.
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Molten Alkali Metal Borate/Carbonate Salts for High Temperature CO₂ Capture and Electrochemical Conversion
… (500-650°C). First, we examine molten alkali borates as a novel hybrid sorbent for CO2 conversion. Alkali borates have been demonstrated as a promising high-temperature molten salt sorbent for acid gas separations, but prior studies have focused on regeneration through steam sweeping or …
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Borox catalysis : a new frontier in chiral Bronsted acid catalysis derived from chiral borate anions
… the Brønsted acid catalysts derived from chiral borate anions are generated only upon the addition of a base. This was further supported by NMR spectroscopy, computational chemistry and X-ray analysis. Lastly, a new mechanism has been examined for the imino-aldol reaction using computational …
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Structural relaxations of glass-forming alkali-borate and alkali-tellurite in the GHz frequency range
… of a series of strong glass-forming alkali-borate and fragile glass-forming alkali-tellurite systems. Lithium, sodium, and potassium, were added to the systems to determine their influence on the structure and degree of networking in these melts.
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The Efficacy of a Borate and Penetrating Oil Preservative Combination for the Conservation of Exterior Wood
This study evaluates aqueous diffusible borates in combination with a penetrating oil and a nano-size iron oxide and zinc oxide based wood preservative system for cypress (Taxodium distichum) and western redcedar (Thuja plicata). The objectives are as follows, 1) To test the efficacy and …
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