451 |
Technological change in a mature industry : the case of ceramicsRowley, Chris January 1992 (has links)
No description available.
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452 |
Metal/ceramic interface properties in diffusion bondingMun, Je Do January 1994 (has links)
No description available.
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453 |
Acoustic microscopy of ceramic fibre compositesLawrence, Charles W. January 1990 (has links)
No description available.
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454 |
Production of TiN/Alâ†2Oâ†3 nanocompositesWalker, Clive Nicholas January 1995 (has links)
No description available.
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455 |
Electrical conductivity of brownmillerite-structured oxide ceramicsFisher, Craig Andrew James January 1996 (has links)
No description available.
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456 |
Manufacture of multiphase ceramic composites by self-propagating high-temperature synthesisBowen, Christopher Rhys January 1993 (has links)
No description available.
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457 |
Diffusion bonding of silicon nitride to metalsMatsushita, Yoshiaki January 1993 (has links)
No description available.
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458 |
A study of sliding wear mechanisms in water-lubricated ceramicsThompson, George Brendon January 2002 (has links)
No description available.
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459 |
Time - temperature dependent phase assemblages developed during the firing of commercial brick claysMcKnight, Andrew Stewart January 1991 (has links)
No description available.
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460 |
Fabrication of rib waveguides and optical fibres in chalcogenide glassesLian, Zheng Gang January 2011 (has links)
Chalcogenide glasses offer transmission from the far visible to the far - infrared (IR) wavelength range. They exhibit photosensitivity and have high linear and nonlinear refractive indices. There are many potential applications involving near- and mid- infrared light such as laser delivery, optical data storage and all-optical switching. Two types of optical waveguides based on chalcogenide glasses were developed in this project: (1) The fabrication of planar optical waveguides in thin As40Se60 glass films was carried out via a hot embossing pressing technique. Previous work had shown it possible to fabricate optical waveguides in polymers using hot embossing techniques. Nevertheless using hot embossing to pattern waveguides in a thin chalcogenide glass film did not receive much success. In the present work, single-mode optical rib waveguides operating at telecommunication wavelengths were successfully patterned in a thermally evaporated As40Se60 glass thin film on a Ge17As18Se65 chalcogenide glass substrate. This experimental line demonstrated a fast and economic way of producing planar waveguides in thin chalcogenide glass films. (2) For the first time, a one-layer, solid micro-structured optical fibre (MOF) was successfully drawn from As40Se60 and Ge10As23.4Se66.6 (atomic %) chalcogenide glasses for operation in the near- to mid-infrared. This experimental line showed a new and flexible route to micro-structuring of mid-infrared fibre for operation in the near- to mid-infrared, presenting an all-solid (i.e. glass-glass) alternative to air-glass micro-structuring. The principal advantage of the new approach is mechanical rigidity. A sufficiently large refractive index step between the component glasses exists to enable structures that rely on photonic bandgap effects for their operation to be realised in future work. Underpinning the development of these optical waveguides, the refractive index dispersion of bulk chalcogenide glasses As40Se60, Ge10As23.4Se66.6 and Ge17As18Se65 was measured using ellipsometry from 0.3 μm to 2.3 μm wavelength in this project. Also, the refractive index of thin As40Se60 films was measured and compared with that of bulk As40Se60 samples. Finally a Se precursor purification process was developed to enhance the purity of the end-glasses.
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