Abstract
The solubility of casted silver in various corrosive solutions in different thermal and periodic conditions was measured by means of an atomic absorption analyzer. Three factors (solution, time and temperature) and levels were selected.By design of experiment, 27 specimens were assigned using L27(313)table of orthogonal arrays.
The amount of dissolved silver was slight as about 0.03 mg/cm2 in maximum.The factors selected were all significant. The slolution was the most decisive factor to the silver dissolution. At three month period, silver dissolved significantly most in NaCl solution, and least in the artificial saliva. No significant thermal and periodic effects were observed in the artificial saliva, while the thermal effect at 60℃ was noted in 1% lactic acid solution. The periodic effect at 3 months was revealed in NaCl solution.
