Abstract:The nanocrystalline material of an artificial carbon pyroceram mitral valve obtained by sintering of 15 wt.% B 4 C with crystals <10 nm that are uniformly distributed in 85 wt.% carbon with particles ~10 nm has exceptionally high chemical stability in blood plasma. The electrochemical interaction resulting from contact with a possible microadditive (for example, iron) on the valve surface is experimentally modeled by polarization induced by an external current source specially to create extreme corrosion condi… Show more
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