Startseite Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
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Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase

  • Mengyong Sun , Qinggang Li , Shifeng Huang und Xin Cheng
Veröffentlicht/Copyright: 10. September 2015
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 106 Heft 9

Abstract

β-Si3N4 whiskers with a diameter of 0.2 – 1.7 μm and length of over 100 μm were synthesized by means of microwave sintering at 1550 °C for 30 min in a flowing nitrogen atmosphere. The β-Si3N4 whiskers grew on Si3N4 substrate without catalyst by the vapor–liquid–solid mechanism. Microwave energy and Y2O3–Al2O3–ZrO2 additives played a significant role in the growth of β-Si3N4 whiskers. The microwave energy provided an orientation temperature gradient and the additives formed the low viscosity glass phase at a low eutectic temperature.

Keywords: X-ray diffraction; Liquid phase epitaxy; Silicon nitride; Whiskers
*Correspondence address, Professor Cheng Xin, School of Material Science and Engineering, University of Jinan, 336, West Rd of Nan Xinzhuang, Jinan, Shandong, 250022, P. R. China, Tel.: +86-531-82767375, E-mail:

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Received: 2015-03-03
Accepted: 2015-04-30
Published Online: 2015-09-10
Published in Print: 2015-09-15

© 2015, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Kinetics for gas–solid reactions involving dual-reaction interfaces
  5. Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
  6. Material characterisation to identify the rheological behaviour for powder injection moulding
  7. Isothermal section of Nd–Mn–As phase diagram at 800 °C
  8. Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
  9. Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
  10. The investigation of mechanical properties of B4C-reinforced AlSi7 foams
  11. The stabilising effect of oxides in foamed aluminium alloy scrap
  12. Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
  13. Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
  14. Short Communications
  15. Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
  16. Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
  17. Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
  18. Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
  19. People
  20. Berthold Scholtes on the occasion of his 65th birthday
  21. DGM News
  22. DGM News
https://doi.org/10.3139/146.111266
Schlagwörter für diesen Artikel
X-ray diffraction; Liquid phase epitaxy; Silicon nitride; Whiskers

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Kinetics for gas–solid reactions involving dual-reaction interfaces
  5. Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
  6. Material characterisation to identify the rheological behaviour for powder injection moulding
  7. Isothermal section of Nd–Mn–As phase diagram at 800 °C
  8. Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
  9. Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
  10. The investigation of mechanical properties of B4C-reinforced AlSi7 foams
  11. The stabilising effect of oxides in foamed aluminium alloy scrap
  12. Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
  13. Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
  14. Short Communications
  15. Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
  16. Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
  17. Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
  18. Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
  19. People
  20. Berthold Scholtes on the occasion of his 65th birthday
  21. DGM News
  22. DGM News
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