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Showing 1 to 20 of 21 for “"phosphate glass"”.
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Immobilization of radioactive materials in iron phosphate glass
… study investigates the feasibility of using iron phosphate glass for the immobilization of radioactive wastes considered incompatible with borosilicate glass. Wastes may be incompatible with borosilicate glass due to high phosphorus content (Hanford tank sludges), the presence of halides (CsCl and …
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Photosensitivity and Photodarkening of UV-induced Phosphate Glass Fiber Bragg Gratings and Application in Short Fiber Lasers
Phosphate glass fiber is an ideal choice for building compact high gain fiber lasers, as the fiber can host high concentrations of rare earth ions. However, the low photosensitivity of phosphate glass fibers prevents the integration of UV-written intra-core fiber Bragg gratings (FBGs) into the …
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A Study of Processing-Structure-Property Correlations in Novel Inorganic Phosphate Glass/Polyamide 66 Hybrid Materials with Enhanced Benefits
<p>A new class of inorganic glass/organic polymer hybrid materials has been developed recently by using ultra low T<sub>g</sub> tin fluorophosphate glass (Pglass) to combine the advantages of classical polymer blends and composite materials without their disadvantages. One of the important …
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Processing Behavior of Thermoplastics Reinforced with Melt Processable Glasses
… thermoplastics reinforced with melt processable phosphate glasses processed by techniques including injection molding, compression molding, and thermoforming. Thermoplastic resins consisting of polyphenylene sulfide (PPS), polyetherimide (PEI) and polyetheretherketone (PEEK) were combined with …
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Synthesis and Characterisation of new materials formed from metal-organic frameworks and glasses
… exhibited by several MOFs: the ability to form a glass. The hybrid glasses derived from MOFs are markedly different from other glass categories such as organic, inorganic and metallic glasses. A significant proportion of MOF glasses are derived from zeolitic imidazolate frameworks (ZIFs). A ZIF …
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HIGH POWER PULSED FIBER LASER SOURCES AND THEIR USE IN TERAHERTZ GENERATION
… fiber laser systems. These systems utilize phosphate glass fiber for active elements, instead of the industry-standard silica fiber. Because the phosphate glass allows for much higher doping of rare-earth ions than silica fibers, much shorter phosphate fibers can be used to achieve the same …
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A High Energy X-Ray Diffraction Investigation Of Sodium Phosphate Glasses Doped With Less Than 5 Mol% Praseodymium Oxides
<p>Rare earth phosphate glasses (REPGs) are excellent materials for high energy (10<super>3</super> - 10<super>6</super> J) / high peak power ( 10<super>12</super> - 10<super>15</super> W) lasers. Previous work of the rare earth doped sodium phosphate glasses with compositions …
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Application of Radial Distribution Functions to Diffraction and Imaging Data: Interfacial Structures, Amorphous, Disordered Materials
… of two material case studies: the rare earth phosphate glass (REPG) (Gd2O3)0.230(P2O5)0.770, and four Ru based photo-isomers. The closest R…R rare earth separation, which governs optical properties of REPGs, was determined to be 4.2(1) Å, aided by various statistical techniques. Analysis on …
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Phase equilibria in iron phosphate system
… of this research were to synthesize iron phosphate compounds, study phase equilibria in the iron phosphate system, focusing on the glass forming area, and investigate glass formability and properties based on the liquidus regions. Twelve iron phosphate compounds were successfully prepared …
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Phosphate and Borophosphate Glasses for optical and Biomedical Applications
… work was to connect the network structures of phosphate and borophosphate glasses to the compositional dependence of properties related to biomedical applications. The glasses were characterized by a variety of techniques, including phosphate ion chromatography, Raman spectroscopy, and …
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The Development of Hybrid Liquids and Glasses
Abstract: The Development of Hybrid Liquids and Glasses Louis Michael David Longley Metal-organic framework (MOF) glasses are amorphous materials formed by heating a crystalline MOF into the liquid phase and then cooling to form an amorphous solid material. The hybrid nature, defined here as …
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Processing parameters and kinetics of phosphate-based dechlorination for electrorefiner salt waste
… dissolved in alkali chloride salts. Iron phosphate (FePs) glasses have been identified as candidate materials due to the high waste loading, good chemical durability, and lower processing temperatures. Phosphate-based dechlorination has been used to produce intermediate phosphate products …
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Tapered waveguide lasers
… ion exchange (TIE) in Nd-doped borosilicate glass. Ti:sapphire pumped laser operation of these waveguides indicates efficient (40%) and low-loss (0.2dBcm<sup>-1</sup>) operation, comparable to that of a channel waveguide fabricated within the same substrate. Parabolic and linear taper shapes …
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Graphite immobilisation in glass composite materials
… disposal route. This thesis describes the use of glass materials for the immobilisation of irradiated graphite prepared by microwave, conventional and sparks plasma sintering methods. Several potential glass compositions namely iron phosphate, aluminoborosilicate, calcium aluminosilicate, alkali …
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Development and characterisation of phosphate glasses for athermalisation
… of a WDM system. <br/><br/>Generally, athermal glasses must exhibit negative refractive index change with temperature (dn/dT) to counter the effect of thermal expansion. Phosphate glasses are ideal candidates for athermalisation as they exhibit negative dn/dT. An interferometer set-up has been …
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Production and characterisation of bioresorbable polymers and polymer-glass composites for application in cardiac stents
… materials based on polymer blends and polymer-glass composites, for future application in an effective and safe bioresorbable cardiac stent. PLLA was combined with polyethylene-glycol functionalised poly(L-lactide-co-caprolactone) (PLCL-PEG) to form a semi-miscible set of polymer blends with …
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Development and characterisation of calcium phosphate glasses and glass-ceramics containing fluorine and titanium
There is ongoing research into calcium phosphate glasses as possible candidates for use in dental restoration and in the field of bone implants. This is due to the fact that calcium phosphate glasses have many useful properties such as bioactivity, biocompatibility, bioresorbability and non …
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Comparative study of physical properties of zirconia based dental ceramics
… of zirconia containing 1, 2 and 5 wt% titanium phosphate glasses in order to identify whether glass affected the flexural and bond strengths. The results showed that the addition of glass 5 wt% or greater lead to the dramatic decrease of the biaxial flexural strength. There was also no …
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ATOMIC LAYER DEPOSITION OF ALKALI PHOSPHORUS OXYNITRIDE ELECTROLYTES FOR BEYOND-LITHIUM NANOSCALE BATTERIES
… incorporation and more closely resembling a phosphate glass. NaPON is determined to be a promising SSE with an ionic conductivity of 1.0 ́ 10-7 S/cm at 25 °C and a wide electrochemical stability window of 0-6.0V vs. Na/Na+. The electrochemical stability and performance of NaPON as a SSE is …
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High thermal expansion phosphorus oxide and oxynitride glasses
<p>"The chemical durability of phosphate glasses in general can be improved by the incorporation of chemically dissolved nitrogen and/or addition of oxides such AI<sub>2</sub>O<sub>3</sub>.</p> <p>Over 100 oxide and oxynitride glass compositions were evaluated. The general compositions investigated …
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