High Temperature Ceramic Matrix Composites 8 E-Book

• Herausgeber: John Wiley & Sons
• Kategorie: Fachliteratur
• Serie: Ceramic Transaction Series
• Sprache: Englisch

Seitenzahl: 1108

Veröffentlichungsjahr: 2014

Beschreibung

This proceedings contains 78 papers from the 8th International Conference on High Temperature Ceramic Matrix Composites, held September 22-26, 2013 in Xi'an, Shaanxi, China. Chapters include: * Ceramic Genome, Computational Modeling, and Design * Advanced Ceramic Fibers, Interfaces, and Interphases * Nanocomposite Materials and Systems * Polymer Derived Ceramics and Composites * Fiber Reinforced Ceramic MatrixComposites * Carbon-Carbon Composites: Materials, Systems, and Applications * Ultra High Temperature Ceramics and MAX Phase Materials * Thermal and Environmental Barrier Coatings

Leseprobe

Contents

Cover

Half Title page

Title page

Copyright page

Introduction

Preface

Symposia Organizers

Ceramic Genome, Computational Modeling, and Design

Design of New Gradient Cemented Carbides and Hard Coatings Through Ceramic Genome

Abstract

Introduction

Establishment of The Ceramic Genome

Experimental

Results and Discussion

Schematical Ceramic Genome

Conclusion

Acknowledgement

References

The Effects of Nesting and Stacking Sequence on the Structural and Gas Transport Properties of Plain Woven Composites during Chemical Vapor Infiltration Process

Abstract

Introduction

The Macro-Pore Model

Results and Discussion

Conclusion

Acknowledgements

References

An Efficient Approach to Determine the Effective Properties of Random Heterogeneous Materials

Abstract

Introduction

Homogenization

Extrapolation

Numerical Results

Conclusion

Acknowledgement

References

Contribution of Image Processing Techniques to the Simulation of Chemical Vapor Infiltration of SiC in CMCs

Abstract

Introduction

Overall Strategy

Image Analysis Tools

Image Synthesis

Infiltration Simulations

Summary and Outlook

Acknowledgements

References

Image-Based Numerical Simulation of Thermal Expansion in C/C Composites

Abstract

Introduction

Material and Characterizations

Strategy and Methods

Results and Discussion

Summary and Outlook

Acknowledgements

References

Analysis and Molecular Modeling of Pyrolytic Carbons Nanotextures

Abstract

Introduction

Materials

Numerical Methods

Results and Discussion

Summary and Outlook

Acknowledgements

References

A New Kinetic Monte-Carlo/Volume-of-Fluid Solver for the Anisotropic Surface Recession of C/C Composites by Ablation

Abstract

Introduction

Method: Principle and Implementation

Test Cases : Presentation and Quasi-Analytic Solutions

Test Results

Application Example

Summary and Conclusion

Acknowledgements

References

Numerical Simulation of Oxidation-Assisted Failure of CMC-SiC at Intermediate Temperature

Abstract

Introduction

Microstructural Characteristics of Micro CMC-SiC

Microstructure Modeling of Oxidized Micro CMC-SiC

Oxidation Kinetics Model

Modelling the Oxidized Microstructure

Computation Method of Stress Distribution and Failure Behavior of Oxidized Micro CMC-SiC

Periodical Boundary Conditions

Failure Analysis Strategy

Numerical Examples

Failure of Micro Sic/Sic

Failure of Micro C/Sic

Conclusion

Acknowledgement

References

Advanced Ceramic Fibers, Interfaces, and Interphases

Suppression of α-Al2O3 Formation from Alumina Gel Fibers by Urea-Catalyzed TEOS-Derived Silica

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

References

Ceramix Matrix Microcomposites Prepared by P-RCVD Within the (Ti-Si-B-C) System

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Fabrication and Properties of Zr/SiC and Zr/Si3N4 Laminated Composites

Abstract

1. Introduction

2. Experiment

4. Conclusion

Acknowledgement

References

Silicon Carbide Fibers Made from Nano-Powders

Abstract

Introduction

Experimental Procedure

Results and Discussion

Conclusions

Acknowledgements

References

Composition and Reactivity of Various Silicon Carbide Fibres

Abstract

Introduction

Conclusions

Acknowledgements:

References:

The Investigation of Pyrolytic Coating on Carbon Monofilament by Cold Wall CVD using Ethanol as Precursor

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

References

Nanocomposite Materials and Systems

Carbon Nanotube-Reinforced Ceramic Matrix Composites: Processing and Properties

Abstract

Introduction

Processing of Cnt-Reinforced CMCs

Mechanical Properties

Functional Properties

Conclusions

Acknowledgment

References

Fabrication of ZAO Ceramic Target and Effect on the Photoelectric Properties of its Film

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

References

Mechanical Properties of Carbon Nanotube Reinforced Composites: A Review

Abstract

Introduction

Research Progress in Cnts/Pmc

Research Progress in Cnts/Mmc

Research Progress in Cnts/Cmc

Summaries and Remarks

Acknowledgements

References

Effect of the Electrodeposition Parameters on Deposition Morphologies of CNTs on Carbon Fibers

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

Acknowledgements

References

Microstructure and Growth Mechanism of SiC Whiskers Synthesized by Carbothermal Reduction of Silicon Nitride

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Polymer Derived Ceramics and Composites

High Temperature Dielectric and Microwave Absorption Properties of Polymer Derived SiCN Ceramic in X Band

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

Acknowledgment

References

SiCN-Nanowhiskers Self-Reinforcing CMC Quasi-3D Structure Forming by PIP

Abstract

1. Introduction

2. Experiments

3. Results and Discussion

References

Ablation Behavior of C/C-Zrb2-SiC Carbon-Ceramic Composites

Abstract

1. Introduction

2. Materials and Methods

3. Results and Discussions

4. Conclusions

References:

Fiber Reinforced Ceramic Matrix Composites

Effect of Heat Exposure on the Flexural Strength of Reinforced Carbon and Glass Fibers Geopolymer Matrix Composites

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Reaction Mechanism of Titanium with Carbon During Reactive Melt Infiltration of a Carbon Fiber Reinforced TiC and Carbon Composite

Abstract

Introduction

Experimental

Result and Discussion

Conclusion

References

Modelling the Behaviour of CMC Using Damage Mechanics

Abstract

Introduction

Crack Network Modelling

Oxidative Damage Modelling

Tensile Test on A Dog-Bone Specimen at High Temperature and Under Oxidizing Environment

Conclusion

References

MMS Technology: First Results and Prospects

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

Acknowledgements

References

Effect of Oxidation Damage on the Totel Emissivity of 2D C/SiC Composites

Abstract

Introduction

Experimental Procedure

Results and Discussion

Conclusion

References:

Effect of Water Vapor on the Oxidation Behavior of CVD-BCx

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgments

References

Microstructure and Mechanical Properties of the 2D C/SiC/Tc4 Joints Brazed with Cu-Ti + Mo

Abstract

1. Introduction

2. Materials and Experimental Procedures

3. Results and Discussion

4. Conclusions

Acknowledgements

References

Uniaxial Macro-Mechanical Property and Failure Analysis of A 2D-Woven Sic/SiC Composite

Abstract

Introduction

Experiment

Stress-Strain Behaviors and Damage Evolution

Mechanical Properties and Failure Mechanisms

Conclusions

References

A Biaxial Flexural Test for Short Carbon Fiber-Reinforced Sic-Matrix Composites

Abstract

Introduction

Experimental

Results and Discussion

Summary

Acknowledgement

References

C/C-SiC Materials Based on Melt Infiltration - Manufacturing Methods and Experiences from Serial Production

Abstract

Cmc Manufacturing Via Melt Infiltration

Properties of Mi Derived C/SiC and C/C-SiC

Applications of Mi Derived C/C-SiC and C/SiC

Development of Brake Pads for the Propeller Brake of A400M

Experiences from Pre-Series Manufacture

Summary

References

Internal Friction Behavior of SiC Ceramics Subjected to Water Vapor Corrosion

Abstaract

Introduction

Experimental

Results and Discussion

Conclusion

References

Fatigue Behavior of C/SiC Ceramic Matrix Composites at Room and Elevated Temperatures

Abstract

Introduction

Material and Experimental Procedures

Experimental Results

Hysteresis Theory and Fatigue Life Prediction Model

Experimental Comparisons

Conclusion

Acknowledgement

References

The Effects Originated from Low Earth Orbit Thermal Cycling and Atomic Oxygen on C/SiC Composites

Abstract:

1. Introduction

2. Experimental

3. Results and Discussion

4. Conclusion

Acknowledgements

References

Processing and Properties of the C/SiBCN Ceramic Matrix Composites Prepared by PIP

Abstract

Introduction

Experiment

Results and Discussion

Conclusion

Acknowledgement

References

Analysis and Characterization of Amorphous Boron Carbide Coatings Deposited from BCl3-CH4-H2 Mixtures

Abstract

1. Introduction

2. Experiment Procedure

3. Results and Discussion

4. Summary

Acknowledgments

References

Chemical Vapor Deposition of Boron-Doped Carbon Coating from BCl3-C3H6-H2Ar Gas Mixture

Abstract

1. Introduction

2. Experimenal

3. Results and Discussion

4. Conclusions

Acknowledgments

References

Preparation and Mechanical Properties of 3D-Cf/Mullite Composites Fabricated by Sol-Gel Process

Abstract:

1. Introduction

2. Experimental Procedure

3. Results and Discussion

4. Conclusions

Acknowledgement

References

An Alternative to Ceramic Matrix Composites

Abstract

Introduction

Experimental

Conclusions

Acknowledgements

Fabrication of Short Fiber Reinforced SiCN by Injection Molding of Preceramic Polymers

Abstract

Introduction

Experimental Materials

Characterization Methods.

Sample Preparation.

Results and Discussion

Compound Development.

Compound Preparation.

Sample Characterization.

Microstructure

Conclusions

Acknowledgement

References

Abstract

Introduction

Interphase Concept as Applied to Sic/SiC Composites

Cvi: A Unique Process to Engineer the Interphase in Sic/SiC Composites

Conventional Interphases

Other Potential Interphases

Conclusions

References

Temperature Effect on C/SiC Composite with SiC Nanowires Grown in Situ

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

Acknowledgement

References

Evaluation of Different Carbon Precursors for the Liquid Silicon Infiltration Process

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Microstructure and Mechanical Properties of C/C-SiC Composites Reinforced with Fibers Treated at Elevated Temperatures

Abstract

Introduction

Experimental Procedure

Results and Discussion

Summary

Acknowledgments

References

Oxidation Behavior of C/C-SiC Composites with Varied Matrix Composition

Abstract

Introduction

Experimental

Results and Discussion

Summary

Acknowledgments

References

Evaluation and Validation of Elastic Properties and a Failure Criterion for an Oxide Wound Ceramic Composite Material

Abstract

1 Introduction and Motivation

2 Modeling Approach

3 Experimental

4 Results and Discussion

5 Conclusions

References

Mechanical and Ablation Properties of Ultra-High Temperature Composites with a Variable Matrix-Composition

Abstract

1. Introduction

1. Experimental

3. Results and Discussion

4. Conclusions

References:

Carbon-Carbon Composites: Materials, Systems, and Applications

Effects of Preform Structures on Rhenium Coating Prepared on C/C Composites by Chemical Vapor Deposition

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

References

Application Status of C/C Composites for Thermal Protection System in Re-Entry Spacecraft

Abstract

1. Introduction

2. Fabrication Process

3. Conclusion

4. References:

Techniques about Fabrication of Thin-Wall Preforms with Complex Shape for Ceramic Composites

Abstract

1 Introduction

2 Preform Fabrication Technologies

3 Conclusion and Future Work

4 Acknowledgments

Reference

Carbon/Carbon Greenbodies for Space Mirrors and Their Thermal Performance

Abstract

1. Introduction

2. Experimental Procedure

3. Results and Discussion

4. Conclusion

Reference

Oxidation Behavior of SiC Reinforced ZrB2 Composite Coating Prepared by Low Pressure Plasma Spray

Abstract

Introduction

Experiments

Results and Discussions

Conclusions

Acknowledgement

Reference

Structural Analysis of Carbon-Fiber / Pyrolytic Carbon Matrix Composites

Abstract

Introduction

Results and Discussion

Conclusion

Acknowledgment

References

Preparation of β-Sialon Anti-Oxidation Ceramic Coating for C/C Composites and Infrared Stealthy Characteristic

Abstract

Introduction

Experimental

Results and Discussion

Infrared Stealthy Characteristic

Conclusion

Acknowledgement

References

Ultra High Temperature Ceramics and MAX Phase Materials

Effect of Carbon Content on the Formation of Ti3SiC2 in the Liquid Silicon Infiltration Process

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Modification of Titanium Carbide Powders by Silicidation with Gaseous SiO

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Combustion Synthesis of Ti3SiC2-Based Ceramic Matrix Composites Using Non-Powder Reactant Solids

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgements

References

Microstructure Evolution of α-SiC in the Liquid Phase Sintering Process

Abstract

Introduction

Experimental

Result and Discussion

Conclusion

References

Mechanical Properties and Thermal Shock Resistance of Anisotropic Zrb2-SiC-Graphite Ceramic

Abstract

Introduction

Experimental Procedures

Theoretical and Numerical Calculation

Results and Discussion

Conclusions

Acknowledgement

References

Ablation Behavior of Zrb2/SiC Composite by Oxyacetylene Flame

Abstract

1 Introduction

2 Experiment Procedures

3 Results and Discussions

4 Conclusions

References:

Synthesis of Zrc-Zrb2 Composite Powders by Pirac Method

Abstract

Introduction

Experimental Procedure

Results and Discussion

Conclusion

Acknowledgement

References

Thermal and Environmental Barrier Coatings

Formation of Fine Ceramics Layer and Intermetallics Network by Thermal Nanoparticles Spraying and Pattering

Abstract

Introduction

Experimental Procedure

Results and Discussions

Conclusion

References

Formation of Inter-splat Bonding and Intra-splat Microstructure During Plasma Spraying of Ceramic Coating

Abstract

Introduction

Splat Cooling Features During Plasma Spraying

Inter-Splat Interface Bonding

Effect of Inter-Splat Bonding and Deposition Temperature on the Intra-Splat Microstructure

Summary

Acknowledgements

References

Preparation and Ablation Properties of Zrc-Tac Co-Deposition Coating for Carbon-Carbon Composites

Abstract:

1. Introduction

2. Experiment

2 Results and Discussion

3. Conlusions

Acknowledgments

References

Phase Stabilities and Corrosion/Recession Properties of Rare Earth Silicates Under High Speed Steam Jet

Abstract

Introduction

Experimental

Results and Discussion

Summary

References

Integration Technologies, Component Testing, and Evaluation

Wettability in Joining of Advanced Ceramics and Composites: Issues and Challenges

Abstract

Introduction

Wettability

Infiltration

Brazing of CMCs: General Considerations

Conclusions

References

Study on the Ablation Behavior of 3D Needled C/SiC in the Rocket Combustion Environments

Abstract

Introduction

Experimental Procedures

Results and Discussion

Conclusion

References

The Degradation of Hi-Nicalon Monofilament after Proton Irradiation

Abstract

Introduction

Experimental Procedure

Results and Discussion

Conclusions

Acknowledgements

References

Damage Evaluation in Glass-Ceramic Matrix Composites Via Combined Infrared Thermography and Acoustic Emission

Abstract

Introduction

Experimental

Results and Discussion

Conclusions

Acknowledgment

References

Hybrid Ceramic – Metallic Composite Pipes for High Temperature Power Plant Application

Abstract

Introduction

Numerical and Experimental Work

Results and Discussion

Conclusion

Acknowledgement

References

An Experimental Investigation on Shear Behaviors of Single-Lap Four-Pin 2D C/SiC Joints

Abstract

1. Introduction

2. Experimental Details

3. Results and Discussion

4. Conclusions

Acknowledgements

References

The Effect of Dimension Parameters on the Tensile Properties of A C/SiC Pipe

Abstract

Introduction

Experiment

Result and Analysis

Conclusion

Acknowledgment

References

The Application Research of New Testing Technique on Mechanical Experiment for Large-Size CMC Structure

Abstract

Introduction

Application of the Wireless Laser Measuring Technique in Thermal Modal Test of CMC Structure

The Characteristics of Acoustic Emission Test for CMC Material

Applications of High Temperature Acoustic Emission Technique(Htae) to Ground Test of CMC Large Scale Structure

Conclusion

References

Joining of Glassy Carbon with A C/C-SiC Composite by Brazing for an Innovative High Temperature Sensor

Abstract

Introduction

Experimental

Results

Discussion

Conclusion

Acknowledgement

References

Strengthening/Toughening of Laminated (Sicw+Sicp)/SiC Ceramic Composites

Abstract

Introduction

Experimental

Results and Discussion

Conclusion

Acknowledgement

References

Mechanical Properties of Carbon/Silicon Carbide Composites Materials Bolts

Abstract

Introduction

Test

Results

Conclusions

Reference

Development of Full Scale Ramjet Nozzle with C/SiC Ceramic Matrix Composite

Abstract

Introduction

Working Conditions

Manufacturing Process

Analysis for Failure of Nozlle Hydraulic Pressure Test

Ablation Behavior

Deposition Properties

Conclusions

Reference

Author Index

High Temperature Ceramic Matrix Composites 8

Copyright © 2014 by The American Ceramic Society. All rights reserved.

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ISBN: 978-1-118-93298-8

ISSN: 1042-1122

Introduction

Ceramic matrix composites (CMCs) are becoming a set of indispensable materials for a number of applications in aerospace, power generation, ground transportation, nuclear, environmental and chemical industries involving high temperatures and extreme environments. In China, there has been tremendous progress in CMCs in the areas of scientific research, technological development, and commercialization.

The HTCMC conference was introduced by Prof. Roger Naslain in 1993 and takes place every three years at alternating locations around the globe: Bordeaux (France, 1993), Santa Barbara (USA, 1995), Osaka (Japan, 1998), Munich (Germany, 2001), Seattle (USA, 2004), New Delhi (India, 2007), and Bayreuth (Germany, 2010).

HTCMC-8, held September 22–26, 2013 in Xi’an, Shaanxi, China was a successful platform for the community of high temperature ceramics and composites to share innovative ideas in research and development as well as up-to-date applications of CMCs. We would like to gratefully thank the symposium organizers (see page xvii) for their hard work and dedication for making HTCMC-8 a success.

Prof. Litong Zhang Academician, CAE Northwestern Polytechnical University Xi’an, China

Prof. Dongliang Jiang Academician, CAE Shanghai Institute of Ceramics Shanghai, China

Preface

The High Temperature Ceramic Matrix Composites (HTCMC) conference series was initiated by Prof. Roger Naslain, Honorary professor of University of Bordeaux, in 1993 in Bordeaux (France), and then in Santa Barbara (USA, 1995), Osaka (Japan, 1998), Munich (Germany, 2001), Seattle (USA, 2004), New Delhi (India, 2007) and Bayreuth (Germany, 2010). HTCMC-8 conference was hold in Xian (China, 2013).

In 2013, HT-CMC conference series comes to its 20th year. Over the past two decades, ceramic matrix composites (CMCs) are becoming a set of indispensable materials for a number of applications in aerospace, power generation, ground transportation, nuclear, environmental and chemical industries involving high temperatures and extreme environments. Tremendous progress in CMCs has been made in scientific research, technological development, and commercialization.

With the rapid development of related new materials, simulation and process methods, the HTCMC-8 conference has been expanded to comprise nine symposia, and more and more participants have been involved in this conference. In HTCMC-8, there were 320 participants from 18 countries, in which 210 participants came from China and 110 from the other countries. There were 260 oral talks, including 36 keynotes and 52 invited talks, and 75 posters. The HTCMC conference is becoming an influential conference and an excellent platform for academic communication.

Facing the challenges of harsh service environments, novel high-temperature ceramic composite materials for functional/structural-integrated applications have been developed by means of designing the phase composition and microstructure of fiber, interface, matrix and coating. These kinds of research are very attractive and challengeable, which provide great opportunities for discovery of new materials. We believe the development and the application of CMCs would be promoted by effective international exchange and cooperation.

After a peer-review process, 78 papers are accepted for inclusion in this proceedings. We acknowledge all the authors’ dedications, and appreciate the symposium editors, Jing-Yang Wang, Gregory Morscher, Hui Mei, Peter Greil, Tatsuki Ohji, He-Jun Li, Yan-Chun Zhou, Hua-Tay Lin, and Lai-Fei Cheng for their contributions during the entire evaluating and reviewing process. We also appreciate Greg Geiger of The American Ceramic Society for his great work on the publication of this proceedings.

PROF. LITONG ZHANGAcademician, CAE Northwestern Polytechnical University Xi’an, China

PROF. DONGLIANG JIANGAcademician, CAE Shanghai Institute of Ceramics Shanghai, China

Symposia Organizers

Symposium 1: Ceramic Genome, Computational Modeling, and Design

Jingyang Wang, China

Yong Du, China

Zhiqiang Feng, France

Weihong Zhang, China

Gérard Vignoles, France

Symposium 2: Advanced Ceramic Fibers, Interfaces, and Interphases

Gregory Morscher, USA

Lifu Chen, China

Yongcai Song, China

Hubert Jäger, Germany

Yutaka Kagawa, Japan

Symposium 3: Nanocomposite Materials and Systems

Sanjay Mathur, Germany

Hisayuki Suematsu, Japan

Soshu Kirihara, Japan

Zhengwei Pan, USA

Wei-Hsing Tuan, Taiwan

Yubai Pan, China

Lalit M. Manocha, India

Symposium 4: Polymer Derived Ceramics and Composites

Peter Greil, Germany

Paolo Colombo, Italy

Raj Bordia, USA

Linan An, USA

Günter Motz, Germany

Yiguang Wang, China

Dong-Pyo Kim, Korea

Ralf Riedel, Germany

Symposium 5: Fiber Reinforced Ceramic Matrix Composites

Shaoming Dong, China

Tatsuki Ohji, Japan

Walter Krenkel, Germany

Jacques Lamon, France

Gilbert Fantozzi, France

Dietmar Koch, Germany

Laifei Cheng, China

Xiaowei Yin, China

Frank Zok, USA

David Marshall, USA

Symposium 6: Carbon-Carbon Composites: Materials, Systems, and Applications

Hejun Li, China

Hong Cui, China

Xiang Xiong, China

Walter Krenkel, Germany

Hiroshi Hatta, Japan

Lalit M. Manocha, India

Gérard Vignoles, France

Symposium 7: Ultra High Temperature Ceramics and MAX Phase Materials

Guojun Zhang, China

Yanchun Zhou, China

Sylvia Johnson, USA

Alida Bellosi, Italy

Yoshio Sakka, Japan

Xinghong Zhang, China

Shibo Li, China

Symposium 8: Thermal and Environmental Barrier Coatings

Hua-Tay Lin, USA

Wei Pan, China

Hagen Klemm, Germany

Yiguang Wang, China

Dileep Singh, USA

Symposium 9: Integration Technologies, Component Testing, and Evaluation

Laifei Cheng, China

Mrityunjay Singh, USA

Monica Ferraris, Italy

Roland Weiß, Germany

Rajiv Asthana, USA

Martin Frieß, Germany

Ceramic Genome, Computational Modeling, and Design

DESIGN OF NEW GRADIENT CEMENTED CARBIDES AND HARD COATINGS THROUGH CERAMIC GENOME

Weibin Zhanga, Yong Dua,*, Li Chena, Yingbiao Penga, Peng Zhoua, Weimin Chena, Kaiming Chenga, Lijun Zhanga, Wen Xieb, Guanghua Wenb, and Shequan Wangb

a State Key Lab of Powder Metallurgy, Central South University, Hunan, 410083, China

b Zhuzhou cemented carbide cutting tools limited company, Zhuzhou, Hunan, 412007, China

ABSTRACT

The concept of ceramic genome is briefly introduced, and its combination with CALPHAD (CALculation of PHAse Diagrams) method is a powerful tool for materials process optimization and alloy design. The quality of CALPHAD-type calculations is strongly dependent on the quality of the thermodynamic and diffusivity databases. The development of thermodynamic and diffusivity databases for cemented carbides is described. Several gradient cemented carbides sintered under vacuum and various partial pressures of N2 have been studied via experiment and simulation. Examples of ceramic genome applications in design and manufacture for different kinds of cemented carbides are shown using the databases and comparing where possible against experimental data, thereby validating their accuracies. Metastable Ti-Al-N coatings have been well acknowledged as protective layer for industrial applications due to their excellent mechanical, chemical and thermal properties. Here, we study the effect of Zr addition on structure and thermal properties of Ti1-xAlxN based coatings under the guidance of ab initio calculations. The preparation of TiAlZrN by magnetron sputtering verifies the suggested cubic (NaCl-type) structure for below 0.6–0.7 and ≤ 0.4. Alloying with Zr also promotes the formation of cubic domains but retards the formation of stable wurtzite AlN during thermal annealing.