Rare Earth Doping of Zirconia Optical Waveguides PDF Download
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Author: William Ruben Berglund
Publisher:
ISBN:
Category :
Languages : en
Pages : 336
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Book Description
Author: William Ruben Berglund
Publisher:
ISBN:
Category :
Languages : en
Pages : 336
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Book Description
Author: Corey Lee Hardin
Publisher:
ISBN: 9781321735284
Category : Nanocrystals
Languages : en
Pages : 49
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Book Description
The high fracture toughness of stabilized zirconia makes it one of the most widely applicable high temperature structural materials. However, it is not typicality considered for optical applications since the microstructure achieved by traditional processing makes it opaque. The aim of this dissertation is to develop processing methods for the introducing new functionalities of light transparency and light emission (photoluminescence) and to understand the nanostructure-property relationships that make these functionalities possible. A processing study of rare-earth (RE) doped Zirconium Oxide (ZrO 2, zirconia) via Current Activated Pressure Assisted Densification (CAPAD) is presented. The role of processing temperature and dopant concentration on the crystal structure, microstructure and properties of the RE: ZrO2 is studied. Microstructural shows sub-100 nm grain size and homogeneous dopant distribution. X-ray diffraction and Raman analysis show that with increased dopant concentration the material changes from monoclinic to tetragonal. Structural analysis shows the material shows high hardness and toughness values 30% greater than similarly processed yttria-stabilized zirconia. Despite birefringence in the tetragonal phase, optical characterization is presented showing the samples are both highly transparent and photo-luminescent. Special attention is paid to analyzing structural and photoluminescence development during densification, as well as the role of oxygen vacancies on the optical properties of the densified material. This material is shown to be a promising candidate for a number of applications including luminescence thermometry and high temperature light emission.
Author: Ross Timothy Schermer
Publisher:
ISBN:
Category :
Languages : en
Pages : 308
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Book Description
Author: Yiying Lu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Zirconia is a multifunctional material with potential applications in wide domains. Rare-earth doped zirconia and stabilized zirconia yield interesting properties based on the phase transitions induced by the sintering conditions. Zirconia nanopowders were prepared by hydrothermal technique. Synthesis methods of zirconia with various rare earths are discussed here. An overview of the sintering of zirconia-based ceramics is presented in particular for SOFC and sensors and optical applications.
Author: Vahak Marghussian
Publisher: William Andrew
ISBN: 0323354327
Category : Technology & Engineering
Languages : en
Pages : 293
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Book Description
Nano-Glass Ceramics: Processing, Properties and Applications provides comprehensive coverage of synthesis and processing methods, properties and applications of the most important types of nano-glass ceramics, from a unique material science perspective. Emphasis is placed on the experimental and practical aspects of the subject while covering the theoretical and practical aspects and presenting, numerous examples and details of experimental methods. In the discussing the many varied applications of nano-glass ceramics, consideration is given to both, the fields of applications in which the materials are firmly established and the fields where great promise exists for their future exploitation. The methods of investigation adopted by researchers in the various stages of synthesis, nucleation, processing and characterization of glass ceramics are discussed with a focus on the more novel methods and the state of the art in developing nanostructured glass ceramics. - Comprehensive coverage of nanostructured glass ceramics with a materials science approach. The first book of this kind - Applications-oriented approach, covering current and future applications in numerous fields such as Biomedicine and Electronics - Explains the correlations between synthesis parameters, properties and applications guiding R&D researchers and engineers to choose the right material and increase cost-effectiveness
Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2730
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Book Description
Author: Volkmar Dierolf
Publisher: Woodhead Publishing
ISBN: 008100060X
Category : Science
Languages : en
Pages : 472
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Book Description
Rare Earth and Transition Metal Doping of Semiconductor Material explores traditional semiconductor devices that are based on control of the electron's electric charge. This book looks at the semiconductor materials used for spintronics applications, in particular focusing on wide band-gap semiconductors doped with transition metals and rare earths. These materials are of particular commercial interest because their spin can be controlled at room temperature, a clear opposition to the most previous research on Gallium Arsenide, which allowed for control of spins at supercold temperatures. Part One of the book explains the theory of magnetism in semiconductors, while Part Two covers the growth of semiconductors for spintronics. Finally, Part Three looks at the characterization and properties of semiconductors for spintronics, with Part Four exploring the devices and the future direction of spintronics. - Examines materials which are of commercial interest for producing smaller, faster, and more power-efficient computers and other devices - Analyzes the theory behind magnetism in semiconductors and the growth of semiconductors for spintronics - Details the properties of semiconductors for spintronics
Author: V. Dierolf
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 318
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Book Description
This book brings together more than 100 specialists from around the world to examine the status and emerging trends in the field of rare-earth-doped materials. These materials are used and/or are potential candidates for applications as lasers, light-emitting diodes, phosphors, displays and other photonic applications. Progress in growth, doping methods, characterization and device applications are reviewed. Topics include: rare-earth doping in nitrides; rare-earth doping in silicon-related materials; mechanisms and laser materials and phosphors and scintillators.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 656
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Book Description
Author: R. C. Buchanan
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
Optical transition spectra (lambda = 0.3-50 micrometers) and dc conductivity (25 degrees-1000 degrees C) data were obtained on YSZ single crystals commercially grown by the skull melting process. The crystals were doped with up to 2.0 wt% rare earth (Ce, Nd, Er, Pr) and transition (Mn, Fe, Cr, Ni) metal ions, and a few were annealed. Dopant effects were most pronounced in the visible region, but were evident throughout much of the spectral range. Annealing and dopant ions Ce and Er showed significant absorption effects attributed to the Ce(3+) ion. Electrical conductivity was only marginally affected by doping. (Author).
