A new evaporation-based method for the preparation of biomimetic calcium phosphate coatings on metals

作者：Duan Ke^*; Tang Allen; Wang Rizhi

来源：Materials Science & Engineering C-Materials for Biological Applications, 2009, 29(4): 1334-1337.

DOI：10.1016/j.msec.2008.10.028

• Calcium phosphate
• Biomimetic
• Coating
• Metal
• Surface

This study reports a new method to prepare biomimetic calcium phosphate coatings on titanium, stainless steel, CoCrMo, and tantalum. The method does not require surface etching, high supersaturation, or tight control of solution conditions. Metallic samples were dipped into a supersaturated calcium phosphate solution, withdrawn, and left to dry at room temperature. Calcium phosphate crystallites formed on and completely covered the surfaces by repeating the dip-and-dry treatment. The crystal lite-covered surfaces readily grew to calcium phosphate coatings when immersed in the supersaturated solution. The mechanism of the treatment was suggested to be an evaporation-induced surface crystallization process.

• 出版日期2009-5-5
• 单位西南交通大学