Delaminating Layered Oxide Composites with Wavy Interfaces
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I.-W. Chen
and
E. J. Winn
Abstract
Two-phase zirconia/porous alumina layered composites with a variety of microstructures and good damage tolerance have been fabricated. The flatness of the layer microstructure can be controlled by deformation processing in the green state when the constituent ceramic powders are suspended in a fluid medium. Mismatch in deformation resistance leads to flow localization creating wavy layers without long-range coherence. Repeated folding and pressing further allows large deformation strains to accumulate and thin layers to be obtained. Under flexural loading, very high nominal strains can be sustained by successive layer fracture and delamination at the alumina-to-zirconia interface. Compared to conventional flat-layer laminates, these composites are attractive in view of their relative processing ease and their good mechanical performance.
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The authors gratefully acknowledge support for this research from the U. S. Air Force Office of Scientific Research, under Grant No. F49620-01-1-0150, and for facilities at the University of Pennsylvania under the NSF MRSEC program, Grant No. DMR 96-32598.
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© 2001 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Editorial
- “No wise man ever wish to be younger”
- Aufsätze/Articles
- Entropy, Transformations and Sustainability of Industrial Life Cycles
- Positron Annihilation in Stable and Supercooled Metallic Melts
- Local Characterization of the Diffusion Process during Discontinuous Precipitation: A Review
- The Dependence of Abnormal Grain Growth on Initial Grain Size in 316 L Stainless Steel
- Diffusion-Controlled Grain Growth in Liquid-Phase Sintering of W–Cu Nanocomposites
- Evaluation of Densification Mechanisms of Liquid-Phase Sintering
- Phase Transformation of a Dual Phase Al–Fe Alloy Prepared by Mechanical Alloying
- Discrete Element Simulation of Ceramic Powder Processing
- Strain Relaxation and Internal Friction in the Range of the Glass Transition
- A Thermodynamic Model of an Amorphous Grain Boundary Phase in Liquid-Phase Sintered β-SiAlON Ceramic
- Epitaxial Growth of Metals on (100) SrTiO3: The Influence of Lattice Mismatch and Reactivity
- Microstructure and Modifications of Cu/Al2O3 Interfaces
- Structural Transformations Induced by Swift Heavy Ions in Polysiloxanes and Polycarbosilanes
- Metastable Al–Nd–Ni and Stable Al–La–Ni Phase Equilibria
- Phase Equilibria of the Al–Nd and Al–Nd–Ni Systems
- System Pr –Pd–O: Phase Diagram and Thermodynamic Properties of Ternary Oxides Using Solid-State Cells with Special Features
- Calculation of Phase Equilibria in Candidate Solder Alloys
- Thermodynamic Assessment of the Zr–O Binary System
- Delaminating Layered Oxide Composites with Wavy Interfaces
- Contemporary Materials Issues for Advanced EB-PVD Thermal Barrier Coating Systems
- Monte Carlo Simulations of Strength Distributions of Brittle Materials – Type of Distribution, Specimen and Sample Size
- On the Optimization of the Microstructure in Powder Metallurgical Ag–SnO2–In2O3 Contact Materials
- Some New Aspects of Microstructural Design of β-Si3N4 Ceramics
- Ni-Based SOFC Anodes: Microstructure and Electrochemistry
- Effect of Copper Line Geometry and Process Parameters on Interconnect Microstructure and Degradation Processes
- Thermal Stability of Nanoscale Co/Cu Multilayers
- Methods for Characterising the Precipitation of Nanometer-Sized Secondary Hardening Carbides and Related Effects in Tool Steels
- Prediction of Local Strain and Hardness in Sheet Forming
- Novel in situ-Infiltrated Al2O3-Metal Composites
- Influence of Microstructure and Impurities on Thermal Conductivity of Aluminium Nitride Ceramics
- Notifications/Mitteilungen
- Personelles/Personal
- Bücher/Books
- Tagungen/Conferences
Articles in the same Issue
- Frontmatter
- Editorial
- “No wise man ever wish to be younger”
- Aufsätze/Articles
- Entropy, Transformations and Sustainability of Industrial Life Cycles
- Positron Annihilation in Stable and Supercooled Metallic Melts
- Local Characterization of the Diffusion Process during Discontinuous Precipitation: A Review
- The Dependence of Abnormal Grain Growth on Initial Grain Size in 316 L Stainless Steel
- Diffusion-Controlled Grain Growth in Liquid-Phase Sintering of W–Cu Nanocomposites
- Evaluation of Densification Mechanisms of Liquid-Phase Sintering
- Phase Transformation of a Dual Phase Al–Fe Alloy Prepared by Mechanical Alloying
- Discrete Element Simulation of Ceramic Powder Processing
- Strain Relaxation and Internal Friction in the Range of the Glass Transition
- A Thermodynamic Model of an Amorphous Grain Boundary Phase in Liquid-Phase Sintered β-SiAlON Ceramic
- Epitaxial Growth of Metals on (100) SrTiO3: The Influence of Lattice Mismatch and Reactivity
- Microstructure and Modifications of Cu/Al2O3 Interfaces
- Structural Transformations Induced by Swift Heavy Ions in Polysiloxanes and Polycarbosilanes
- Metastable Al–Nd–Ni and Stable Al–La–Ni Phase Equilibria
- Phase Equilibria of the Al–Nd and Al–Nd–Ni Systems
- System Pr –Pd–O: Phase Diagram and Thermodynamic Properties of Ternary Oxides Using Solid-State Cells with Special Features
- Calculation of Phase Equilibria in Candidate Solder Alloys
- Thermodynamic Assessment of the Zr–O Binary System
- Delaminating Layered Oxide Composites with Wavy Interfaces
- Contemporary Materials Issues for Advanced EB-PVD Thermal Barrier Coating Systems
- Monte Carlo Simulations of Strength Distributions of Brittle Materials – Type of Distribution, Specimen and Sample Size
- On the Optimization of the Microstructure in Powder Metallurgical Ag–SnO2–In2O3 Contact Materials
- Some New Aspects of Microstructural Design of β-Si3N4 Ceramics
- Ni-Based SOFC Anodes: Microstructure and Electrochemistry
- Effect of Copper Line Geometry and Process Parameters on Interconnect Microstructure and Degradation Processes
- Thermal Stability of Nanoscale Co/Cu Multilayers
- Methods for Characterising the Precipitation of Nanometer-Sized Secondary Hardening Carbides and Related Effects in Tool Steels
- Prediction of Local Strain and Hardness in Sheet Forming
- Novel in situ-Infiltrated Al2O3-Metal Composites
- Influence of Microstructure and Impurities on Thermal Conductivity of Aluminium Nitride Ceramics
- Notifications/Mitteilungen
- Personelles/Personal
- Bücher/Books
- Tagungen/Conferences
