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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 3, Iss. 9 — Sep. 10, 2005
  • pp: 530–532

Effects of Y2O3 upon mechanical properties of laser coating

Chi Deng, Yong Wang, Yaping Zhang, and Jiacheng Gao  »View Author Affiliations

Chinese Optics Letters, Vol. 3, Issue 9, pp. 530-532 (2005)

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Roles of Y2O3 in mechanical properties of the bioceramic coating by the laser cladding were reported in this paper. The bonding strength of interface between the laser coatings with/without Y2O3 and substrate Ti-6Al-4V (TC4), bending strength, compressive strength, tensile strength, and hardness in these coatings were contrastively tested, and the ceramic-metal interface was observed by scanning electronic microscopy (SEM). These results indicated that the rare earth was the important factor which influenced the mechanical properties of the coating. Y2O3 was adequately dispersed in the melting pool of the laser coating, crystal grain got smaller after the melted coating was cooled, the impurity existing in crystal interface was reduced by chemical reactions, and so the strength was evidently improved. On the other hand, the rare earth could also obviously increase the hole numbers in the coating and decrease the compressive strength. So the effects of the rare earth on the laser coating were intricate and all-purpose.

© 2005 Chinese Optics Letters

OCIS Codes
(000.1430) General : Biology and medicine
(140.0140) Lasers and laser optics : Lasers and laser optics
(240.6700) Optics at surfaces : Surfaces
(310.1620) Thin films : Interference coatings

Chi Deng, Yong Wang, Yaping Zhang, and Jiacheng Gao, "Effects of Y2O3 upon mechanical properties of laser coating," Chin. Opt. Lett. 3, 530-532 (2005)

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