Bioactive glass coatings are very promising for implant materials due to their good adhesion, mechanical stability, and bioactivity. A new family of silicate-based glasses has been prepared and applied to metallic implants using a simple enameling technique. The graded approach used here reduces stress between layers, and preliminary indentation tests (see Figure) indicate a strong glass–metal adhesion.
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Gomez-Vega et al. (2000) studied this question.