English, Article edition: SOLIDIFICATION MECHANISM OF LASER REMELTED BIOACTIVE HA COATINGS CHUANZHONG CHEN; DIANGANG WANG; QUANHE BAO; ...

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Bookmark: http://trove.nla.gov.au/version/84840
Physical Description
  • article
Language
  • English

Edition details

Title
  • SOLIDIFICATION MECHANISM OF LASER REMELTED BIOACTIVE HA COATINGS
Author
  • CHUANZHONG CHEN
  • DIANGANG WANG
  • QUANHE BAO
  • LIANG ZHANG
  • TINGQUAN LEI
Physical Description
  • article
Notes
  • In this paper, as-sprayed HA coatings were remelted by CW laser. The morphologies and the development of microstructures were analyzed by electron probe microanalysis. The solidification mechanism of laser remelted bioactive HA coatings is usually determined by the parameters of the temperature gradient G and the solidification velocity R. In the region of bottom pool, the G/​R value is high which will result in the forming of planar crystal. With the decrease of G/​R value, cellular and cellular dendrites will form. Near the surface, the coating can radiate heat to the atmosphere which will form a negative temperature gradient, consequently the structure is composed of dendrites.
  • Hydroxyapaptite, solidification mechanism, laser remelting, temperature gradient, solidification velocity
  • RePEc:wsi:srlxxx:v:12:y:2005:i:05:p:819-823
Language
  • English
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