Author: Girraj Kishore Bansal
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 124
Book Description
Crystallographic Aspects of the Tetragonal Monoclinic Phase Transformation in Zirconia
Author: Girraj Kishore Bansal
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 124
Book Description
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 124
Book Description
Aspects Of The Martensitic Tetragonal To Monoclinic Phase Transformation In Zirconia
Author: Neville Sonnenberg
Publisher:
ISBN:
Category : Zirconium oxide
Languages : en
Pages : 342
Book Description
Publisher:
ISBN:
Category : Zirconium oxide
Languages : en
Pages : 342
Book Description
Phase Field Modeling of Tetragonal to Monoclinic Phase Transformation in Zirconia
Author: Mahmood Mamivand
Publisher:
ISBN:
Category :
Languages : en
Pages : 176
Book Description
Zirconia based ceramics are strong, hard, inert, and smooth, with low thermal conductivity and good biocompatibility. Such properties made zirconia ceramics an ideal material for different applications form thermal barrier coatings (TBCs) to biomedicine applications like femoral implants and dental bridges. However, this unusual versatility of excellent properties would be mediated by the metastable tetragonal (or cubic) transformation to the stable monoclinic phase after a certain exposure at service temperatures. This transformation from tetragonal to monoclinic, known as LTD (low temperature degradation) in biomedical application, proceeds by propagation of martensite, which corresponds to transformation twinning. As such, tetragonal to monoclinic transformation is highly sensitive to mechanical and chemomechanical stresses. It is known in fact that this transformation is the source of the fracture toughening in stabilized zirconia as it occurs at the stress concentration regions ahead of the crack tip. This dissertation is an attempt to provide a kinetic-based model for tetragonal to monoclinic transformation in zirconia. We used the phase field technique to capture the temporal and spatial evolution of monoclinic phase. In addition to morphological patterns, we were able to calculate the developed internal stresses during tetragonal to monoclinic transformation. The model was started form the two dimensional single crystal then was expanded to the two dimensional polycrystalline and finally to the three dimensional single crystal. The model is able to predict the most physical properties associated with tetragonal to monoclinic transformation in zirconia including: morphological patterns, transformation toughening, shape memory effect, pseudoelasticity, surface uplift, and variants impingement. The model was benched marked with several experimental works. The good agreements between simulations results and experimental data, make the model a reliable tool for predicting tetragonal to monoclinic transformation in the cases we lack experimental observations.
Publisher:
ISBN:
Category :
Languages : en
Pages : 176
Book Description
Zirconia based ceramics are strong, hard, inert, and smooth, with low thermal conductivity and good biocompatibility. Such properties made zirconia ceramics an ideal material for different applications form thermal barrier coatings (TBCs) to biomedicine applications like femoral implants and dental bridges. However, this unusual versatility of excellent properties would be mediated by the metastable tetragonal (or cubic) transformation to the stable monoclinic phase after a certain exposure at service temperatures. This transformation from tetragonal to monoclinic, known as LTD (low temperature degradation) in biomedical application, proceeds by propagation of martensite, which corresponds to transformation twinning. As such, tetragonal to monoclinic transformation is highly sensitive to mechanical and chemomechanical stresses. It is known in fact that this transformation is the source of the fracture toughening in stabilized zirconia as it occurs at the stress concentration regions ahead of the crack tip. This dissertation is an attempt to provide a kinetic-based model for tetragonal to monoclinic transformation in zirconia. We used the phase field technique to capture the temporal and spatial evolution of monoclinic phase. In addition to morphological patterns, we were able to calculate the developed internal stresses during tetragonal to monoclinic transformation. The model was started form the two dimensional single crystal then was expanded to the two dimensional polycrystalline and finally to the three dimensional single crystal. The model is able to predict the most physical properties associated with tetragonal to monoclinic transformation in zirconia including: morphological patterns, transformation toughening, shape memory effect, pseudoelasticity, surface uplift, and variants impingement. The model was benched marked with several experimental works. The good agreements between simulations results and experimental data, make the model a reliable tool for predicting tetragonal to monoclinic transformation in the cases we lack experimental observations.
Mechanism of the Monoclinic to Tetragonal Transformation of Zirconium Dioxide
Author: Clark F. Grain
Publisher:
ISBN:
Category : Zirconium oxide
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Zirconium oxide
Languages : en
Pages : 28
Book Description
Crystallographic Modifications and Phase Transformation Rates of Five Rare-earth Sesquioxides
Author: A. J. Forney
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 844
Book Description
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 844
Book Description
Ceramic and Glass Materials
Author: James F. Shackelford
Publisher: Springer Science & Business Media
ISBN: 0387733620
Category : Technology & Engineering
Languages : en
Pages : 209
Book Description
This is a concise, up-to-date book that covers a wide range of important ceramic materials used in modern technology. Chapters provide essential information on the nature of these key ceramic raw materials including their structure, properties, processing methods and applications in engineering and technology. Treatment is provided on materials such as alumina, aluminates, Andalusite, kyanite, and sillimanite. The chapter authors are leading experts in the field of ceramic materials. An ideal text for graduate students and practising engineers in ceramic engineering, metallurgy, and materials science and engineering.
Publisher: Springer Science & Business Media
ISBN: 0387733620
Category : Technology & Engineering
Languages : en
Pages : 209
Book Description
This is a concise, up-to-date book that covers a wide range of important ceramic materials used in modern technology. Chapters provide essential information on the nature of these key ceramic raw materials including their structure, properties, processing methods and applications in engineering and technology. Treatment is provided on materials such as alumina, aluminates, Andalusite, kyanite, and sillimanite. The chapter authors are leading experts in the field of ceramic materials. An ideal text for graduate students and practising engineers in ceramic engineering, metallurgy, and materials science and engineering.
Science and Technology of Zirconia V
Author: M., Bannister
Publisher: CRC Press
ISBN: 1000940322
Category : Technology & Engineering
Languages : en
Pages : 881
Book Description
This book is based on the Fifth International Conference that was held on 16-21 August, 1992 in Melbourne, Australia, in conjunction with AUSTCERAM 92. It demonstrates that the field of Zirconia ceramics remains one of scientific challenge and technical attraction.
Publisher: CRC Press
ISBN: 1000940322
Category : Technology & Engineering
Languages : en
Pages : 881
Book Description
This book is based on the Fifth International Conference that was held on 16-21 August, 1992 in Melbourne, Australia, in conjunction with AUSTCERAM 92. It demonstrates that the field of Zirconia ceramics remains one of scientific challenge and technical attraction.
Nuclear Science Abstracts
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 536
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 536
Book Description
On the Mechanism of the Reversible Monoclinic-tetragonal Phase Transformation in Zirconia
Author: Sergej-Tomislav V. Buljan
Publisher:
ISBN:
Category : Solid state physics
Languages : en
Pages : 382
Book Description
Publisher:
ISBN:
Category : Solid state physics
Languages : en
Pages : 382
Book Description
Phase Transformations
Author: Srikumar Banerjee
Publisher: Elsevier
ISBN: 0080548792
Category : Technology & Engineering
Languages : en
Pages : 837
Book Description
The terms phase transitions and phase transformations are often used in an interchangeable manner in the metallurgical literature. In Phase Transformations, transformations driven by pressure changes, radiation and deformation and those occurring in nanoscale multilayers are brought to the fore. Order-disorder transformations, many of which constitute very good examples of continuous transformations, are dealt with in a comprehensive manner. Almost all types of phase transformations and reactions that are commonly encountered in inorganic materials are covered and the underlying thermodynamic, kinetic and crystallographic aspects elucidated. - Shows readers the advancements in the field - due to enhanced computing power and superior experimental capability - Drawing upon the background and the research experience of the authors, bringing together a wealth of experience - Written essentially from a physical metallurgists view point
Publisher: Elsevier
ISBN: 0080548792
Category : Technology & Engineering
Languages : en
Pages : 837
Book Description
The terms phase transitions and phase transformations are often used in an interchangeable manner in the metallurgical literature. In Phase Transformations, transformations driven by pressure changes, radiation and deformation and those occurring in nanoscale multilayers are brought to the fore. Order-disorder transformations, many of which constitute very good examples of continuous transformations, are dealt with in a comprehensive manner. Almost all types of phase transformations and reactions that are commonly encountered in inorganic materials are covered and the underlying thermodynamic, kinetic and crystallographic aspects elucidated. - Shows readers the advancements in the field - due to enhanced computing power and superior experimental capability - Drawing upon the background and the research experience of the authors, bringing together a wealth of experience - Written essentially from a physical metallurgists view point