SYMPOSIA PAPER Published: 01 January 1994
STP25192S

Calcium Phosphate Precipitation on Calcium-Ion-Implanted Titanium in Electrolyte

Source

Calcium ions were implanted into a titanium surface in quantities of 1016, 1017, and 1018 ions/cm2. The ion-implanted surface was characterized using surface analysis techniques to determine the structure of the surface-modified layer formed by the implantation. The specimens were immersed in a neutral electrolyte solution whose composition resembled that of extracellular fluid. After immersion, the surface of the specimen was again characterized. The data revealed that the surface oxide of titanium grew after the calcium-ion-implantation. The surface-modified layer of the calcium-ion-implanted titanium was composed of titanium dioxide, which contained a calcium oxide and a complex oxide of calcium and titanium near the surface. The precipitation of calcium phosphate on titanium in electrolyte is tremendously accelerated by calcium-ion implantation, which is a surprising property for a biomaterial.

Author Information

Hanawa, T
Hokkaido University School of Dentistry, Sapporo, Japan
Murakami, K
Research Institute, Ishikawajima-Harima Heavy Industries Co., Ltd., Koto-ku, Tokyo, Japan
Kihara, S
Research Institute, Ishikawajima-Harima Heavy Industries Co., Ltd., Koto-ku, Tokyo, Japan
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Details
Developed by Committee: F04
Pages: 170–184
DOI: 10.1520/STP25192S
ISBN-EB: 978-0-8031-5266-3
ISBN-13: 978-0-8031-1854-6