Espevik S
Scand J Dent Res. 1977 Nov;85(7):631-6. doi: 10.1111/j.1600-0722.1977.tb02125.x.
Both Cu amalgam and Sn-containing Ag amalgam alloys with Cu contents ranging from 2 to 30% were used in the investigation. The amalgams were placed in artificial saliva and the content of the dissolved Cu was determined after 1 month. The amalgam remained in the saliva for another 5 months. After the amalgams were removed from the solution, metallographic and microprobe examinations were made. The Cu amalgam released about 10 times more Cu to the artificial saliva than any of the other amalgams. The dispersion type amalgams showed a relatively large dissolution of Cu, while a smaller release was found from amalgam made of powder with one composition. The phases that appeared to be corroded first were gamma2 and Cu-Sn phases. In dispersion type amalgams the gamma phase appeared to be attacked. Most of the corrosion products remained inside the amalgam and were identified to be tin oxide chlorides.
本研究使用了含铜量为2%至30%的铜汞合金和含锡银汞合金。将汞合金置于人工唾液中，1个月后测定溶解铜的含量。汞合金在唾液中再放置5个月。从溶液中取出汞合金后，进行金相和微探针检查。铜汞合金向人工唾液中释放的铜比其他任何汞合金多约10倍。分散型汞合金显示出相对大量的铜溶解，而由单一成分粉末制成的汞合金释放量较小。首先被腐蚀的相是γ2相和铜锡相。在分散型汞合金中，γ相似乎受到侵蚀。大多数腐蚀产物留在汞合金内部，经鉴定为氯氧化锡。
