Processing of Transparent Rare Earth Doped Zirconia for High Temperature Light Emission Applications PDF Download
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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: 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: Malin Liu
Publisher: BoD – Books on Demand
ISBN: 1789842816
Category : Technology & Engineering
Languages : en
Pages : 130
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Book Description
Sintering technology is an old and extensive technology in many areas, and it has been used especially in ceramic fabrication. This book covers many fields, for example, the development of different sintering technologies in recent years, such as spark plasma sintering, flash sintering, microwave sintering, reaction and laser sintering, and so on, and also some special ceramic material fabrication methods and applications, such as carbon nanotubes mixed with alumina and zirconia ceramics, pure and doped zirconia, ZnO ceramic varistors, and so on.
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 : Aeronautics
Languages : en
Pages : 974
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 694
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Book Description
Author:
Publisher:
ISBN:
Category : Ceramics
Languages : en
Pages : 250
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Book Description
Author: Akio Ikesue
Publisher: John Wiley & Sons
ISBN: 1119538815
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
PROCESSING OF CERAMICS A firsthand account of the “transparent ceramics revolution” from one of the pioneers in the field Processing of Ceramics: Breakthroughs in Optical Materials is an in-depth survey of the breakthrough research and development of transparent ceramics, covering historical background, theory, manufacturing processes, and applications. Written by an internationally-recognized leader in the technology, this authoritative volume describes advances in optical grade ceramics over the past three decades—from the author’s first demonstration of laser ceramics in Japan in 1991 to new applications of transparent ceramics such as ceramic jewels, wireless heating elements, and mobile device displays. The author provides numerous development examples of laser ceramics, crystal and ceramic scintillators, magneto-optic transparent ceramics, optical ceramic phosphors for solid state lighting, and more. Detailed chapters cover topics such as the technical problems of conventional translucent and transparent ceramics, the characteristics of scintillation materials, single crystal and ceramic scintillator fabrication and optimization, and solid-state crystal growth (SSCG) methods for single crystal ceramics. Processing of Ceramics: Outlines the author’s 30 years of work in the area of transparent ceramics Provides a detailed history of the world's first ceramic laser development Demonstrates how laser oscillation using ceramic materials match or surpass high-quality single crystals Describes how innovative polycrystalline ceramics have transformed optical material development Includes extensive references, chapter introductions and summaries, and numerous graphs, tables, diagrams, and color images Processing of Ceramics is an invaluable resource for researchers, materials scientists, engineers, and other professionals across academic and industrial fields involved in the development and application of optical grade ceramics.
Author: A.K. Suri
Publisher: Routledge
ISBN: 1351448978
Category : Science
Languages : en
Pages : 272
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Book Description
The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic.
Author: Maurice Quillec
Publisher: Springer Science & Business Media
ISBN: 9780792396659
Category : Technology & Engineering
Languages : en
Pages : 404
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Book Description
Optoelectronics ranks one of the highest increasing rates among the different industrial branches. This activity is closely related to devices which are themselves extremely dependent on materials. Indeed, the history of optoelectronic devices has been following closely that of the materials. KLUWER Academic Publishers has thus rightly identified "Materials for Optoelectronics" as a good opportunity for a book in the series entitled "Electronic Materials; Science and Technology". Although a sound background in solid state physics is recommended, the authors have confined their contribution to a graduate student level, and tried to define any concept they use, to render the book as a whole as self-consistent as possible. In the first section the basic aspects are developed. Here, three chapters consider semiconductor materials for optoelectronics under various aspects. Prof. G. E. Stillman begins with an introduction to the field from the point of view of the optoelectronic market. Then he describes how III-V materials, especially the Multi Quantum Structures meet the requirements of optoelectronic functions, including the support of microelectronics for optoelectronic integrated circuits. In chapter 2, Prof.
Author: Adrian Goldstein
Publisher: John Wiley & Sons
ISBN: 111942948X
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
A detailed account of various applications and uses of transparent ceramics and the future of the industry In Transparent Ceramics: Materials, Engineering, and Applications, readers will discover the necessary foundation for understanding transparent ceramics (TCs) and the technical and economic factors that determine the overall worth of TCs. This book provides readers with a thorough history of TCs, as well as a detailed account of the materials, engineering and applications of TC in its various forms; fabrication and characterization specifics are also described. With this book, researchers, engineers, and students find a definitive guide to past and present use cases, and a glimpse into the future of TC materials. The book covers a variety of TC topics, including: ● The methods employed for materials produced in a transparent state ● Detailed applications of TCs for use in lasers, IR domes, armor-windows, and various medical prosthetics ● A review of traditionally used transparent materials that highlights the benefits of TCs ● Theoretical science and engineering theories presented in correlation with learned data ● A look at past, present, and future use-cases of TCs This insightful guide to ceramics that can be fabricated into bulk transparent parts will serve as a must-read for professionals in the industry, as well as students looking to gain a more thorough understanding of the field.
