A comparative electrochemical study of corrosion susceptibility of some Pd-enriched amalgams.
Cyclic polarization technique was used to determine the corrosion susceptibility of some Pd-enriched amalgams as compared with the conventional and high-copper ones. Different oxidation and reduction peaks and their corresponding current intensities were determined in each case. Corrosion indices I and II were also calculated. Pd-enriched amalgams have shown lower corrosion susceptibility than conventional or unicompositional high-copper amalgams. A role was attributed to the alloy composition and the relative cathodic (reduction) current available.
Metwally
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Corrosion Department, Central Metallurgical Research and Development Institute (CMRDI), Cairo, Egypt.
Habib
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Moussa
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D003300:Copper / Q000737:chemistry; D003343:Corrosion; D003723:Dental Amalgam / Q000737:chemistry*; D004563:Electrochemistry; D008422:Materials Testing / Q000379:methods / Q000706:statistics & numerical data; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D012834:Silver / Q000737:chemistry; D014001:Tin / Q000737:chemistry
D012834:Silver; D010165:Palladium; D014001:Tin; D003300:Copper; D003723:Dental Amalgam