Contents

Cover

Half Title page

Title page

Copyright page

Preface

Introduction

Creep, Fatigue, and Damage Characterization

Anisotropic Creep Behavior of a Unidirectional All-Oxide CMC

Introduction

Experimental Results

Anisotropic Creep Description with the Approach According to Hill

Numerical Simulation of Unit Cells

Conclusion

Acknowledgement

References

Indicators for the Damage Evolution at Intermediate Temperature under Air of a Sic/[Si-B-C] Composite Subjected to Cyclic and Static Loading

Introduction

Experimental

Acoustic Emission

Results and Discussion

Conclusion

Acknowledgements

References

Durability Results from Ceramic Matrix Composite with Differing Porosity Levels

Introduction

Procedure

Results

Discussion

Conclusion

Acknowledgments

References

Effects of Stress Concentrators on Damage Evolution in SiC/SiC Composites

Introduction

Experimental and Methods

Results and Discussion

Conclusion

References

Advancements in Acoustic Micro Imaging for the Non-Destructive Inspection of Ceramic Components and Devices

Introduction

Experimental

Case Study 1

Results and Discussion

Case Study 2

Results and Discussion

Conclusion

References

Effect of Specimen Geometry on Microstructural Fracture Behavior in Nano Composites under HVEM

Introduction

Model for Analysis

Interface Element

Results and Discussions

Conclusions

References

Processing and Properties of Carbides

Effects on Mechanical and Thermal Properties by Varying the Interconnectivity of SiC in a Si:SiC Composite System

Introduction

Experimental Procedure

Results & Discussion

Summary

References

Microstructure-Property Relationships in SiC/Diamond Composites as a Function of Diamond Content

Introduction

Experimental Procedure

Results & Discussion

Summary

References

Effect of SiC:B₄C Ratio on the Properties of Si-Cu/SiC/B₄C Composites

Introduction

Experimental Procedure

Results and Discussion

Summary

Acknowledgement

References

Plastic Deformation and Cracking Resistance of SiC Ceramics Measured by Indentation

Introduction

Experimental Procedure

Experimental Results

Discussion

Conclusion

References

Fabrication of SiC Fiber-Reinforced SiC Matrix Composites by Low Temperature Melt Infiltration Method Using Si-Hf and Si-Y Alloy

Introduction

Experimental Procedures

Results & Discussion

Conclusion

References

Processing and Properties of Non-Carbides

Development of Electrical Porcelain Insulators from Ceramic Minerals in Uganda

Introduction

Raw Materials, Sample Preparation and Experimental Techniques

Results

Discussions

Conclusion

Acknowledgements

References

The Mechanical Properties of Sandwich Structures Based on a Metal Ceramic Core and Fiber Metal Laminate Skin Material

1. Introduction

2. Experimental Procedure

3. Results and Discussion

4. Conclusions

References

Alkali Treatment on Sugarcane Bagasse to Improve Properties of Green Composites of Sugarcane Bagasse Fibers-Polypropylene

Introduction

Experimental Procedures

Results and Discussion

Conclusion

Acknowledgement

References

Characteristics of a Zirconia-Spinel Composite Processed by a Current-Activated Pressure-Assisted Densification Method

Introduction

Experimental Material and Procedures

Experimental Results

Discussion

Conclusions

Acknowledgement

References

Oxidation and Healing

Enhancement of Oxidation Resistance of Graphite Foams by SiC Coating for Concentrated Solar Power Applications

1. Introduction

2. Experiments

3. Results and Discussion

Conclusions

Acknowledgements

References

Spark Plasma Sintering of Ceramic Matrix Composites with Self-Healing Matrix

Introduction

1. Experimental Method

2. Results and Discussion

Conclusion

Acknowledgements

References

Advanced Ceramic Composite using Self-Healing and Fiber-Reinforcement

Introduction

Materials Design

Materials Preparation and Microstructure

Mechanical Properties

Next Trial for Shfrc

Conclusion

Acknowledgements

References

Delamination, Chipping, and Wear

Applying Fracture Mechanics Methods to Model Coating Delamination

Introduction

Methodology

Results and Discussion

Conclusions

References

A New Analysis of the Edge Chipping Resistance of Brittle Materials

Introduction

A New Approach

Materials and Methods

Results

Discussion

Conclusions

Acknowledgements

References

Tribological Background for the Use of Niobium Carbide (NbC) As Cutting Tools and For Wear Resistant Tribosystems

Introduction

Tribological Results

Conclusions

Acknowledgements

References

Index

Mechanical Properties and Performance of Engineering Ceramics and Composites IX

Copyright © 2015 by The American Ceramic Society. All rights reserved.

Published by John Wiley & Sons, Inc., Hoboken, New Jersey.
Published simultaneously in Canada.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permission.

Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special incidental, consequential, or other damages.

For general information on our other products and services or for technical support, please contact our Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002.

Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic formats. For more information about Wiley products, visit our web site at www.wiley.com.

Library of Congress Cataloging-in-Publication Data is available.

ISBN: 978-1-119-03118-5
ISSN: 0196-6219

Preface

This volume is a compilation of papers presented in the Mechanical Behavior and Performance of Ceramics & Composites symposium during the 38th International Conference & Exposition on Advanced Ceramics and Composites (ICACC) held January 26-31, 2014 in Daytona Beach, Florida.

This long-standing symposium received presentations on a wide variety of topics thus providing the opportunity for researchers in different areas of related fields to interact. This volume emphasizes some practical aspects of real-world engineering applications of materials such as oxidation, fatigue, wear, nondestructive evaluation, and mechanical behavior as associated with systems ranging from niobium carbide to metallic-ceramic sandwich structures to ceramic matrix composites. Symposium topics included:

Fabrication, Microstructure, and Properties

Creep and Fatigue

Oxidation and Self-healing

Delamination, Chipping, and Wear

NDE

Significant time and effort is required to organize a symposium and publish a proceeding volume. We would like to extend our sincere thanks and appreciation to the symposium organizers, invited speakers, session chairs, presenters, manuscript reviewers, and conference attendees for their enthusiastic participation and contributions. Finally, credit also goes to the dedicated, tireless, and courteous staff at The American Ceramic Society for making this symposium a huge success.

DILEEP SINGH
Argonne National Laboratory

JONATHAN SALEM
NASA Glenn Research Center

Introduction

This issue of the Ceramic Engineering and Science Proceedings (CESP) is one of seven issues published from manuscripts submitted and approved for the proceedings of the 38th International Conference on Advanced Ceramics and Composites (ICACC), held January 26-31, 2014 in Daytona Beach, Florida. ICACC is the most prominent international meeting in the area of advanced structural, functional, and nanoscopic ceramics, composites, and other emerging ceramic materials and technologies. This prestigious conference has been organized by The American Ceramic Society’s (ACerS) Engineering Ceramics Division (ECD) since 1977.

The 38th ICACC hosted more than 1,000 attendees from 40 countries and approximately 800 presentations. The topics ranged from ceramic nanomaterials to structural reliability of ceramic components which demonstrated the linkage between materials science developments at the atomic level and macro level structural applications. Papers addressed material, model, and component development and investigated the interrelations between the processing, properties, and microstructure of ceramic materials.

The conference was organized into the following 19 symposia and sessions.

Symposium 1 | Mechanical Behavior and Performance of Ceramics and Composites
Symposium 2 | Advanced Ceramic Coatings for Structural, Environmental, and Functional Applications
Symposium 3 | 11th International Symposium on Solid Oxide Fuel Cells (SOFC): Materials, Science, and Technology
Symposium 4 | Armor Ceramics
Symposium 5 | Next Generation Bioceramics and Biocomposites
Symposium 6 | Advanced Materials and Technologies for Energy Generation and Rechargeable Energy Storage
Symposium 7 | 8th International Symposium on Nanostructured Materials and Nanocomposites
Symposium 8 | 8th International Symposium on Advanced Processing & Manufacturing Technologies for Structural & Multifunctional Materials and Systems (APMT), In Honor of Prof. Stuart Hampshire
Symposium 9 | Porous Ceramics: Novel Developments and Applications
Symposium 10 | Virtual Materials (Computational) Design and Ceramic Genome
Symposium 11 | Advanced Materials and Innovative Processing ideas for the Industrial Root Technology
Symposium 12 | Materials for Extreme Environments: Ultrahigh Temperature Ceramics (UHTCs) and Nanolaminated Ternary Carbides and Nitrides (MAX Phases)
Symposium 13 | Advanced Ceramics and Composites for Sustainable Nuclear Energy and Fusion Energy
Focused Session 1 | Geopolymers, Chemically Bonded Ceramics, Eco-friendly and Sustainable Materials
Focused Session 2 | Advanced Ceramic Materials and Processing for Photonics and Energy
Focused Session 3 | Rare Earth Oxides for Energy, Optics and Biomedical Applications
Focused Session 4 | Ion-Transport Membranes
Special Session | 2nd Pacific Rim Engineering Ceramics Summit
Special Session | 3rd Global Young Investigators Forum

The proceedings papers from this conference are published in the below seven issues of the 2014 CESP; Volume 35, Issues 2-8, as listed below.

Mechanical Properties and Performance of Engineering Ceramics and Composites IX, CESP Volume 35, Issue 2 (includes papers from Symposium 1)

Advances in Solid Oxide Fuel Cells X, CESP Volume 35, Issue 3 (includes papers from Symposium 3)

Advances in Ceramic Armor X, CESP Volume 35, Issue 4 (includes papers from Symposium 4)

Advances in Bioceramics and Porous Ceramics VII, CESP Volume 35, Issue 5 (includes papers from Symposia 5 and 9)

Advanced Processing and Manufacturing Technologies for Nanostructured and Multifunctional Materials, CESP Volume 35, Issue 6 (includes papers from Symposia 7 and 8)

Ceramic Materials for Energy Applications IV, CESP Volume 35, Issue 7 (includes papers from Symposia 6 and 13)

Developments in Strategic Materials and Computational Design V, CESP Volume 35, Issue 8 (includes papers from Symposia 2, 10, 11, and 12 and from Focused Sessions 1, 2, 3, and 4); the 3rd Global Pacific Rim Engineering Ceramics Summit; and the 3rd Annual Global Young Investigator Forum

The organization of the Daytona Beach meeting and the publication of these proceedings were possible thanks to the professional staff of ACerS and the tireless dedication of many ECD members. We would especially like to express our sincere thanks to the symposia organizers, session chairs, presenters and conference attendees, for their efforts and enthusiastic participation in the vibrant and cutting-edge conference.

ACerS and the ECD invite you to attend the 39th International Conference on Advanced Ceramics and Composites (http://www.ceramics.org/daytona2015) January 25-30, 2015 in Daytona Beach, Florida.

To purchase additional CESP issues as well as other ceramic publications, visit the ACerS-Wiley Publications home page at www.wiley.com/go/ceramics.

ANDREW GYEKENYESI
Ohio Aerospace Institute, NASA Glenn Research Center, USA

MICHAEL HALBIG
NASA Glenn Research Center, USA

Volume Editors
July 2014

Creep, Fatigue, and Damage Characterization

ANISOTROPIC CREEP BEHAVIOR OF A UNIDIRECTIONAL ALL-OXIDE CMC

Katia Artzt, Stefan Hackemann, Ferdinand Flucht and Marion Bartsch

German Aerospace Center (DLR) Cologne, Germany

ABSTRACT

This paper is intended to give an overview of the creep behavior of unidirectional porous all-oxide CMC including experimental results as well as numerical simulations. The creep behavior was investigated by means of creep tests proving a tension- compression asymmetry. For compression creep, stress and temperature dependencies were determined and described by power-law creep equations. Activation energy was similar for all fiber orientations whereas the stress exponent differed with respect to the loading direction. Thus, for modeling the creep behavior of CMC lamina anisotropic creep must be taken into account. Within commercial finite element software implemented anisotropic creep laws are rare. The anisotropic approach according to Hill was tested for compression creep with regard to the applicability and limitations for CMCs. Since the Hill-approach did not capture the experimental results sufficiently, compression creep was further investigated by simulations on a microscopic scale via unit cells. Thereby the effect of different creep parameters for fibers and matrix and the resulting lamina’s deformation rate could be investigated. It became apparent that additionally compaction of the porous matrix has to be included in the numerical description.

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!

Lesen Sie weiter in der vollständigen Ausgabe!