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Some New Aspects of Microstructural Design of β-Si3N4 Ceramics

  • M. Herrmann , I. Schulz , W. Hermel EMAIL logo , Chr. Schubert und A. Wendt
Veröffentlicht/Copyright: 11. Februar 2022
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 92 Heft 7

Abstract

A new possibility in tailoring microstructures and properties of silicon nitride ceramics is demonstrated by the use of fine b-Si3N4 powders. Fine powders were produced by a plasmachemical synthesis and by crystallisation of amorphous Si3N4 in the presence of an oxide nitride liquid. A wide range of microstructures can be obtained depending on sintering and powder characteristics. At low sintering temperatures microstructures consisting of nanosized, equiaxed grains were obtained, whereas at high temperatures or long sintering times microstructures consisting of fine needle like grains were formed. Microstructural analysis revealed a high anisotropic grain growth of the b grains in the fine grained materials.

Keywords: Silicon nitride; Microstructure; Fine grained materials; Liquid phase sintering
Prof. Dr. W. Hermel Fraunhofer IKTS Winterbergstr. 28, D-01277 Dresden, Germany Fax: +49 351 2553 600

Dedicated to Professor Dr. Dr. h. c. mult. Günter Petzow on the occasion of his 75th birthday

  1. The authors are grateful to Dr. R. Brink (Bayer AG) for supplying the amorphous silicon nitride. The authors are grateful to the colleagues of the IKTS which take part in the technical completion of the paper especially A. Bales. They are indebted to the co-workers in the IKTS especially to Dr. T. Reich, A. Bales, M. Ilgen and K. Wern involved in research projects. The work is based on a project supported by the DFG (HE 2457/5-1).

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Received: 2001-03-24
Published Online: 2022-02-11

© 2001 Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. “No wise man ever wish to be younger”
  4. Aufsätze/Articles
  5. Entropy, Transformations and Sustainability of Industrial Life Cycles
  6. Positron Annihilation in Stable and Supercooled Metallic Melts
  7. Local Characterization of the Diffusion Process during Discontinuous Precipitation: A Review
  8. The Dependence of Abnormal Grain Growth on Initial Grain Size in 316 L Stainless Steel
  9. Diffusion-Controlled Grain Growth in Liquid-Phase Sintering of W–Cu Nanocomposites
  10. Evaluation of Densification Mechanisms of Liquid-Phase Sintering
  11. Phase Transformation of a Dual Phase Al–Fe Alloy Prepared by Mechanical Alloying
  12. Discrete Element Simulation of Ceramic Powder Processing
  13. Strain Relaxation and Internal Friction in the Range of the Glass Transition
  14. A Thermodynamic Model of an Amorphous Grain Boundary Phase in Liquid-Phase Sintered β-SiAlON Ceramic
  15. Epitaxial Growth of Metals on (100) SrTiO3: The Influence of Lattice Mismatch and Reactivity
  16. Microstructure and Modifications of Cu/Al2O3 Interfaces
  17. Structural Transformations Induced by Swift Heavy Ions in Polysiloxanes and Polycarbosilanes
  18. Metastable Al–Nd–Ni and Stable Al–La–Ni Phase Equilibria
  19. Phase Equilibria of the Al–Nd and Al–Nd–Ni Systems
  20. System Pr –Pd–O: Phase Diagram and Thermodynamic Properties of Ternary Oxides Using Solid-State Cells with Special Features
  21. Calculation of Phase Equilibria in Candidate Solder Alloys
  22. Thermodynamic Assessment of the Zr–O Binary System
  23. Delaminating Layered Oxide Composites with Wavy Interfaces
  24. Contemporary Materials Issues for Advanced EB-PVD Thermal Barrier Coating Systems
  25. Monte Carlo Simulations of Strength Distributions of Brittle Materials – Type of Distribution, Specimen and Sample Size
  26. On the Optimization of the Microstructure in Powder Metallurgical Ag–SnO2–In2O3 Contact Materials
  27. Some New Aspects of Microstructural Design of β-Si3N4 Ceramics
  28. Ni-Based SOFC Anodes: Microstructure and Electrochemistry
  29. Effect of Copper Line Geometry and Process Parameters on Interconnect Microstructure and Degradation Processes
  30. Thermal Stability of Nanoscale Co/Cu Multilayers
  31. Methods for Characterising the Precipitation of Nanometer-Sized Secondary Hardening Carbides and Related Effects in Tool Steels
  32. Prediction of Local Strain and Hardness in Sheet Forming
  33. Novel in situ-Infiltrated Al2O3-Metal Composites
  34. Influence of Microstructure and Impurities on Thermal Conductivity of Aluminium Nitride Ceramics
  35. Notifications/Mitteilungen
  36. Personelles/Personal
  37. Bücher/Books
  38. Tagungen/Conferences
https://doi.org/10.1515/ijmr-2001-0145
Schlagwörter für diesen Artikel
Silicon nitride; Microstructure; Fine grained materials; Liquid phase sintering

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. “No wise man ever wish to be younger”
  4. Aufsätze/Articles
  5. Entropy, Transformations and Sustainability of Industrial Life Cycles
  6. Positron Annihilation in Stable and Supercooled Metallic Melts
  7. Local Characterization of the Diffusion Process during Discontinuous Precipitation: A Review
  8. The Dependence of Abnormal Grain Growth on Initial Grain Size in 316 L Stainless Steel
  9. Diffusion-Controlled Grain Growth in Liquid-Phase Sintering of W–Cu Nanocomposites
  10. Evaluation of Densification Mechanisms of Liquid-Phase Sintering
  11. Phase Transformation of a Dual Phase Al–Fe Alloy Prepared by Mechanical Alloying
  12. Discrete Element Simulation of Ceramic Powder Processing
  13. Strain Relaxation and Internal Friction in the Range of the Glass Transition
  14. A Thermodynamic Model of an Amorphous Grain Boundary Phase in Liquid-Phase Sintered β-SiAlON Ceramic
  15. Epitaxial Growth of Metals on (100) SrTiO3: The Influence of Lattice Mismatch and Reactivity
  16. Microstructure and Modifications of Cu/Al2O3 Interfaces
  17. Structural Transformations Induced by Swift Heavy Ions in Polysiloxanes and Polycarbosilanes
  18. Metastable Al–Nd–Ni and Stable Al–La–Ni Phase Equilibria
  19. Phase Equilibria of the Al–Nd and Al–Nd–Ni Systems
  20. System Pr –Pd–O: Phase Diagram and Thermodynamic Properties of Ternary Oxides Using Solid-State Cells with Special Features
  21. Calculation of Phase Equilibria in Candidate Solder Alloys
  22. Thermodynamic Assessment of the Zr–O Binary System
  23. Delaminating Layered Oxide Composites with Wavy Interfaces
  24. Contemporary Materials Issues for Advanced EB-PVD Thermal Barrier Coating Systems
  25. Monte Carlo Simulations of Strength Distributions of Brittle Materials – Type of Distribution, Specimen and Sample Size
  26. On the Optimization of the Microstructure in Powder Metallurgical Ag–SnO2–In2O3 Contact Materials
  27. Some New Aspects of Microstructural Design of β-Si3N4 Ceramics
  28. Ni-Based SOFC Anodes: Microstructure and Electrochemistry
  29. Effect of Copper Line Geometry and Process Parameters on Interconnect Microstructure and Degradation Processes
  30. Thermal Stability of Nanoscale Co/Cu Multilayers
  31. Methods for Characterising the Precipitation of Nanometer-Sized Secondary Hardening Carbides and Related Effects in Tool Steels
  32. Prediction of Local Strain and Hardness in Sheet Forming
  33. Novel in situ-Infiltrated Al2O3-Metal Composites
  34. Influence of Microstructure and Impurities on Thermal Conductivity of Aluminium Nitride Ceramics
  35. Notifications/Mitteilungen
  36. Personelles/Personal
  37. Bücher/Books
  38. Tagungen/Conferences
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