| 摘要 |
A method for producing a functionally graded material by forming a gradient material composed of at least 4 layers, wherein one layer essentially comprises 100 wt% biocompatible wear resistant metal or metal alloy, and the other layers each essentially comprise a powder of a biocompatible wear resistant metal or metal alloy, together with a powder of a bioactive material, or the bioactive material only, wherein each of the layers differ in the ratio between wear resistant metal or metal alloy and bioactive material; and consolidating the gradient material by using a sintering technique; wherein the layer with essentially 100 wt% metal or metal alloy has a relative density of at least about 95 % of the theoretical density. The obtained material may be used in an implant eg. in a knee.
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