Abstract
The dissolution of x CaO · (90-x) P 2 O 5 · 10 K 2 O glasses (x≤35 mol%) in simulated biological media (decationized water, physiological serum and chlorine acid, pH =1.5), at room temperature, in static regime during 24 h was investigated. The data indicates that the corrosion behavior of the samples depends on the pH of the solutions, glass composition and local structure. In the investigated time range, one observes two leaching stages relative to the incipient dissolution. In the first stage, the lowest release rate is obtained from the potassium-phosphate matrix in decationized water, while for the whole time the lowest leaching rate is recorded again in decationized water but from the sample containing small amount of lime, with CaO/P 2 O 5 ratio of 0.06. When the substitution of P 2 O 5 by CaO exceeds 50%, the release behavior changes in the investigated media.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
