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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 111 to 120 of 2242 (0.049 seconds)| 111 |
Strength characterization of thin-wall hollow ceramic spheres from slurriesAdicks, Michael Kent 05 1900 (has links)
No description available.
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| 112 |
Fracture mechanisms of an alumina ceramic at elevated temperaturesBritt, James Marcel 08 1900 (has links)
No description available.
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| 113 |
Properties and fabrication of hollow sphere nickel foamsClancy, Richard Brian 05 1900 (has links)
No description available.
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| 114 |
Primary structural evolution in acid-catalyzed silica polysol-gel processesLing, Dee Ann 05 1900 (has links)
No description available.
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| 115 |
Analysis of tapered-thickness piezoelectric ceramics for ultrasonic transducersBarthe, Peter Girard 05 1900 (has links)
No description available.
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| 116 |
Effects of non-linearity and hysteresis on the electromechanical efficiency of piezoceramic actuatorsMenchaca, Jacqueline 05 1900 (has links)
No description available.
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| 117 |
Experimental characterization of the polarization reorientation process in piezoelectric ceramicsMardon, Clément P. 05 1900 (has links)
No description available.
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| 118 |
Sintering of boron carbideLee, Hyukjae 08 1900 (has links)
No description available.
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| 119 |
Microstructure and mechanical properties of Si-Al-O-N ceramicsBhatti, A. R. January 1979 (has links)
No description available.
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| 120 |
The electrical characteristics of lithium silicate glassesReid, William B. January 1988 (has links)
The electrical behaviour of a series of lithium silicate glasses has been characterised by the versatile a.c. impedance technique. The advantage of using a combination of complex plane and spectroscopic plots in the data analysis is shown. The compositional dependence of the conductivities of the phase separated glasses, which exhibit complex two-phase spinodal decomposition or nucleation and growth textures, is related to the volume fraction of the phases present in the conduction pathway and the tortuosity of the effective medium. The compositional dependence of the conductivities of homogeneous lithium silicate glasses is accounted for by postulating a glass structure composed of silicate anion clusters which are surrounded by a lithia-rich phase which constitutes the preferred conduction pathway. Annealing effects are also reported. The effect of surface roughness on the response of the electrode/electrolyte interface, a phenomenon originally reported by de Levie, and contact problems between the metal electrode and the glass electrolyte are discussed. Novel results regarding the effect of gold electrode recrystallisation on the a.c. response of glass electrolytes are reported. The a.c. impedance technique is shown to be a very useful, surface sensitive tool for monitoring interfacial phenomena such as atmospheric corrosion and surface ion-exchange. The technique is also successfully applied to studies of the mechanism of glass-ceramic formation, where the identification of surface crystallisation products and residual glass, by electrical measurement, is possible. Conclusive evidence for the presence of an effective medium conduction mechanism (percolation theory) in the inhomogeneous glass-ceramic, is given. The electrical data are corroborated by electron microscopy, x-ray diffractometry, energy dispersive x-ray analysis and Fourier Transform Infrared Spectroscopy.
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