A-7 酸性またはアルカリ性の過酸化水素含有溶液中でのチタンの腐食挙動(チタン・チタン合金,一般講演(口頭発表),第54回日本歯科理工学会学術講演会)

概要

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On soaking in acidic or alkaline solutions containing H_2O_2, the change in color, glossiness, surface roughness, and surface morphology of titanium were examined. Precipitation was observed in the alkaline solution. The discoloration and reduction of glossiness was recognized regardless of the pH value in solutions. The surface roughness and surface observation under the SEM showed that the specimens immersed in the alkaline solution containing H_2O_2 had rougher surface than those in the acidic solution. In conclusion, the titanium immersed in the acidic solution containing H_2O_2 was discolored, while the titanium in the alkaline solution was discolored with corrosion.
2009-09-10