Premium
Auger Spectroscopic Analysis of Bioglass Corrosion Films
Author(s) -
CLARK A. E.,
PANTANO C. G.,
HENCH L. L.
Publication year - 1976
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1976.tb09382.x
Subject(s) - soda lime , materials science , auger electron spectroscopy , auger , layer (electronics) , ternary operation , corrosion , soda lime glass , analytical chemistry (journal) , mineralogy , chemical composition , chemical engineering , metallurgy , chemistry , composite material , physics , atomic physics , chromatography , computer science , nuclear physics , engineering , programming language , organic chemistry
Auger spectroscopy and ion beam milling were used to determine surface compositional profiles on a series of bioglass implant materials after exposure to simulated body conditions. Four glasses were examined, a soda‐lime‐silica glass and 3 compositions produced by adding 3, 6, and 12 wt% P 2 O 5 to the ternary glass. An SiO 2 ‐rich layer is formed on the surface of all glasses investigated. As P 2 O 5 is added to the bulk composition, a second film rich in Ca and P forms at the SiO 2 ‐rich film‐water interface. The rate of formation of the Ca‐P film increases as the P 2 O 5 content of the bulk glass increases. When glasses are corroded under identical conditions, the thickness of the Ca‐P layer increases as the P 2 O 5 content of the bulk composition is increased.