Nanostructured ceramic oxides with a slow crack growth resistance close to covalent materials.
نویسندگان
چکیده
Oxide ceramics are sensitive to slow crack growth because adsorption of water can take place at the crack tip, leading to a strong decrease of the surface energy in humid (or air) conditions. This is a major drawback concerning demanding, long-term applications such as orthopaedic implants. Here we show that a specific nanostructuration of ceramic oxides can lead to a crack resistance never reached before, similar to that of covalent ceramics.
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ورودعنوان ژورنال:
- Nano letters
دوره 5 7 شماره
صفحات -
تاریخ انتشار 2005