Behavior in Wet Atmosphere of an Amorphous Calcium Phosphate with an Atomic Ca/P Ratio of 1.33

✍ Scribed by A. Rodrigues; A. Lebugle

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 326 KB
• Volume: 148
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1999.8452

✦ Synopsis

This study deals with the behavior, in a wet atmosphere at 40, 60, and 803C, of an amorphous calcium phosphate with an atomic Ca/P ratio of 1.33. The wet atmosphere treatment leads to the formation of a thin 5lm of water on the sample surface, allowing its maturation. At 40 and 603C, the upper surface, rich in adsorbed water, crystallizes into triclinic OCP, a compound with structural water. The other deeper part leads to apatitic OCP. Whatever the temperature, both types of crystal decompose with time, in various stages, to 5nally lead to a mixture of hydroxyapatite and monetite.