Startseite Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
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Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation

  • Jianqi Qi , Ying Wang , Xiumin Xie , Yuezhong Wang , Jicheng Zhou , Nian Wei , Jun Wang , Di Wu und Tiecheng Lu
Veröffentlicht/Copyright: 12. April 2014
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 105 Heft 4

Abstract

Using micro-sized aluminum powder (11 wt.%) and nano-sized Al2O3 powder (89 wt.%) with five different phase compositions, AlON powders were synthesized at different temperatures in flowing-nitrogen atmosphere. Our results suggest that for starting materials with low γ-Al2O3/total Al2O3 ratio R (0 and 0.15), a calcination temperature of 1 750 °C is required to obtain single-phase AlON. This temperature is about 50 °C higher than for other batches starting with larger R values (0.5, 0.85, and 1.0). The AlON powders fabricated from reactants with a high R value in this work show narrower particle size distribution and better particle homogeneity than those prepared from batches with lower R values.

Keywords: Single-phase AlON powder; Aluminothermic reduction and nitridation method; Raw materials composition; Reaction process
* Correspondence address, Prof. Jianqi Qi, or Prof. Tiecheng Lu, Department of Physics, Sichuan University, 29 Wangjiang Road, Wuhou District, Chengdu, 610064, P. R. China, Tel: +86-028-85412322, Fax: +86-028-85412322, E-mail: ,

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Received: 2013-06-04
Accepted: 2013-11-21
Published Online: 2014-04-12
Published in Print: 2014-04-14

© 2014, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
  9. Approach to evaluation of the overall strengthening and toughening effect of continuous fiber-reinforced ceramic matrix composites
  10. The effect of SiC/Al2O3 particles used during FSP on mechanical properties of AZ91 magnesium alloy
  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
  12. Evaluation of corrosion performance of two Mn-containing stainless steel alloys
  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
  15. Mechanical properties of polyvinyl alcohol sponge under different strain rates
  16. Short Communications
  17. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
  21. The German Materials Society congratulates its long-time Managing Director Dr. Peter Paul Schepp on the occasion of his 65th birthday
  22. Dr. Margarethe Hofmann-Amtenbrink on her 65th birthday
  23. DGM News
  24. DGM News
https://doi.org/10.3139/146.111032
Schlagwörter für diesen Artikel
Single-phase AlON powder; Aluminothermic reduction and nitridation method; Raw materials composition; Reaction process

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
  9. Approach to evaluation of the overall strengthening and toughening effect of continuous fiber-reinforced ceramic matrix composites
  10. The effect of SiC/Al2O3 particles used during FSP on mechanical properties of AZ91 magnesium alloy
  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
  12. Evaluation of corrosion performance of two Mn-containing stainless steel alloys
  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
  15. Mechanical properties of polyvinyl alcohol sponge under different strain rates
  16. Short Communications
  17. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
  21. The German Materials Society congratulates its long-time Managing Director Dr. Peter Paul Schepp on the occasion of his 65th birthday
  22. Dr. Margarethe Hofmann-Amtenbrink on her 65th birthday
  23. DGM News
  24. DGM News
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