Startseite The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation
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The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation

  • Zhaoqiang Chen , Chonghai Xu EMAIL logo , Hui Chen , Jun Ma und Ming Li
Veröffentlicht/Copyright: 27. Oktober 2021
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 106 Heft 2

Abstract

The use of self-lubricating materials not only reduces friction coefficients and alleviates effects of wear and tear, but also helps to maintain the mechanical properties of materials. By using coating technology in the application of self-lubricating materials, it is possible to effectively improve the bonding strength between a solid lubricant and substrate material and additionally to protect the solid lubricant against oxidation and decomposition during the sintering process. This study uses the heterogeneous nucleation method, where aluminum hydroxide (Al(OH)3) is coated on the surface of calcium fluoride (CaF2) to prepare a CaF2@Al(OH)3 composite powder. It was observed, through analysis of the preparation process parameters, that the Al3+ concentration, pH value, and reaction temperature were the factors which most influence coating quality. Optimum process parameters were found to be an Al3+ concentration of 0.15 mol · L–1, pH value of 7.5, and reaction temperature of 75 °C. Comparing and analyzing the micro-morphology of sample composite powders proved the effectiveness and favorable performance of the CaF2@Al(OH)3 composite we produced under optimized process parameters.

Keywords: Heterogeneous nucleation; Al(OH)3 coating; Process parameters; CaF2@Al(OH)3 composite powder
Chonghai Xu, Ph. D. School of Mechanical and Automotive Engineering Qilu University of Technology Daxue Road, Western University Science Park Jinan, 250353 Shandong P. R. China Tel.: +86-531-89631081 Fax: +86-531-89631518

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Received: 2014-07-04
Accepted: 2014-10-14
Published Online: 2021-10-27

© 2015 Carl Hanser Verlag GmbH & Co. KG

Artikel in diesem Heft

  1. Frontmatter
  2. Original Contributions
  3. Microstructures of magnetron sputtered Fe–Au thin films
  4. Phase-field simulation of diffusion-controlled coarsening kinetics of γ’ phase in Ni–Al alloy
  5. Structural and magnetic evolution of ball milled nanocrystalline Fe-50 at.% Al alloy
  6. Structural, optical and magnetic properties of nanocrystalline zinc ferrite particles from glycine assisted combustion: Effect of Sr2+ dopant
  7. Correlation of plastic deformation induced intermittent electromagnetic radiation characteristics with mechanical properties of Cu–Ni alloys
  8. Effect of isothermal quenching methods on impact toughness and wear resistance in high boron steel
  9. Wear behaviour of Al/(Al2O3 + ZrB2 + TiB2) hybrid composites fabricated by hot pressing
  10. Regression analysis of bonding strength of sprayed coatings based on acoustic emission signal
  11. Effect of substrates on covalent surface modification of graphene using photosensitive functional group
  12. Short Communications
  13. Investigation of optimum nucleation temperature and heating rate of cordierite glass-ceramics
  14. The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation
  15. Effect of zirconium and heat treatment on the microstructure and properties of cast chromium bronze for conductive parts
  16. The influence of addition of citric acid on the physical properties of metallic oxide nanorods via Sol-Gel route preparation
  17. Notifications
  18. People
  19. DGM News
  20. Conferences
https://doi.org/10.3139/146.111166
Schlagwörter für diesen Artikel
Heterogeneous nucleation; Al(OH)3 coating; Process parameters; CaF2@Al(OH)3 composite powder

Artikel in diesem Heft

  1. Frontmatter
  2. Original Contributions
  3. Microstructures of magnetron sputtered Fe–Au thin films
  4. Phase-field simulation of diffusion-controlled coarsening kinetics of γ’ phase in Ni–Al alloy
  5. Structural and magnetic evolution of ball milled nanocrystalline Fe-50 at.% Al alloy
  6. Structural, optical and magnetic properties of nanocrystalline zinc ferrite particles from glycine assisted combustion: Effect of Sr2+ dopant
  7. Correlation of plastic deformation induced intermittent electromagnetic radiation characteristics with mechanical properties of Cu–Ni alloys
  8. Effect of isothermal quenching methods on impact toughness and wear resistance in high boron steel
  9. Wear behaviour of Al/(Al2O3 + ZrB2 + TiB2) hybrid composites fabricated by hot pressing
  10. Regression analysis of bonding strength of sprayed coatings based on acoustic emission signal
  11. Effect of substrates on covalent surface modification of graphene using photosensitive functional group
  12. Short Communications
  13. Investigation of optimum nucleation temperature and heating rate of cordierite glass-ceramics
  14. The influence of process parameters on the preparation of CaF2@Al(OH)3 composite powder via heterogeneous nucleation
  15. Effect of zirconium and heat treatment on the microstructure and properties of cast chromium bronze for conductive parts
  16. The influence of addition of citric acid on the physical properties of metallic oxide nanorods via Sol-Gel route preparation
  17. Notifications
  18. People
  19. DGM News
  20. Conferences
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