Effect of temperature on electrochemical deposition of calcium phosphate coatings in a simulated body fluid.

Abstract:

:Calcium phosphate coatings were deposited on titanium plate by an electrochemical method in simulated body fluid at 5-62 degrees C. X-ray diffractometry and FTIR studies demonstrated that the deposits at 5, 22 and 37 degrees C were amorphous and those at 52 and 62 degrees C contained Mg(OH)2, CaCO3 and carbonate apatite of low crystallinity. The calcium, magnesium and phosphorus contents of deposit increased in direct proportion to the square root of loading time of cathodic potential. Induction periods, which might be thought to be the time required to decrease the pH of the electrolyte around the cathode by the formation of H2 gas and to start deposition of calcium phosphate, were observed on all the regression lines. It is concluded that in the electrochemical synthesis of calcium phosphate in this temperature range the diffusion process is a rate-determining step.

journal_name

Biomaterials

journal_title

Biomaterials

authors

Ban S,Maruno S

doi

10.1016/0142-9612(95)94904-y

subject

Has Abstract

pub_date

1995-09-01 00:00:00

pages

977-81

issue

13

eissn

0142-9612

issn

1878-5905

pii

014296129594904Y

journal_volume

16

pub_type

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