Reaction of Composite Ceramic Materials with Corrosionally Active Media |
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Authors: | Lavrenko Vladimir A |
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Affiliation: | (1) Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev 142, 03142, Ukraine |
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Abstract: | The oxidation of composite powders and monolithic AlN SiC, AlN SiC TiB2, and AlN SiC ZrB2 ceramics in air up to 1600°C was studied by the methods of thermogravimetric, differential thermal, x-ray diffraction, and electron-probe microanalysis. The exceptionally high corrosion resistance of these materials was established. The corrosion resistance and possibility of using structural ceramics of the systems TiB2 AlN, TiB2 TiN, and TiC0.5N0.5 in sea water was demonstrated. The toxicity of Si3N4, AlN, BN, and TiN powders was analyzed on the basis of their reactions with biochemical media. It was proven that TiN based materials are highly stable in the oral cavity. |
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Keywords: | composite ceramic materials high-temperature oxidation interaction products electrolytic corrosion stability in biochemical media |
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