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In this study, the ternary base alloys of nickel-copper-manganese (Ni-Cu-Mn) alloys are prepared and these ternary alloys systems, which were constituted from higher nickel and lower copper contents than copper-base alloy ones, were evaluated by a tarnish test. Tarnish tests conducted in a 0,1% sodium sulphide solution (pH=12) at 37°C. All test specimens were cast into square paddles of 15 mm x 20 mm x 2,5 mm using the lost-wax technique with a phoshate-bonded investment. ...
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Jakarta: Jurnal Kedokteran Gigi Universitas Indonesia, 2002
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