镀汞牙科合金（Ag3Sn）上的汞齐化反应。

Amalgamation reaction on mercury-plated dental alloy (Ag3Sn).

作者信息

Okabe T, Hochman R F

出版信息

J Biomed Mater Res. 1975 Mar;9(2):221-36. doi: 10.1002/jbm.820090211.

DOI:10.1002/jbm.820090211

Abstract

The reaction between liquid mercury and Ag3Sn was studied at room temperature using a new type of specimen; i.e. bulk Ag3Sn electroplated with mercury. The surface morphology of the specimen and the phases formed on the Ag3Sn substrate were investigated by various techniques including optical microscopy, electron (scanning) microscopy, electron microprobe analysis, and electron diffraction. It was found that the mode of formation and type of crystalline phase appearing on the Ag3Sn specimen depended on the amount of mercury available. When the amount of mercury exceeded a certain quantity (about 1 mg/cm2) only the gamma1 and gamma2 phases were formed. On the other hand, when the amount of mercury was reduced below a certain low value (less than 0.3 mg/cm2), another silver-mercury phase, beta1, formed as tiny "liquid-like" drops. The experimental technique employed in the present investigation has proved to be an excellent method for studying the reaction between liquid mercury and metal specimens. This new procedure may be employed to evaluate the amalgamation ability of potential new alloy systems.

摘要

使用一种新型试样在室温下研究了液态汞与Ag3Sn之间的反应；即镀有汞的块状Ag3Sn。通过包括光学显微镜、电子（扫描）显微镜、电子微探针分析和电子衍射在内的各种技术研究了试样的表面形态以及在Ag3Sn基体上形成的相。结果发现，出现在Ag3Sn试样上的结晶相的形成方式和类型取决于可用汞的量。当汞的量超过一定量（约1 mg/cm2）时，仅形成γ1和γ2相。另一方面，当汞的量降低到某个低值以下（小于0.3 mg/cm2）时，另一种银汞相β1以微小的“液状”液滴形式形成。本研究中采用的实验技术已被证明是研究液态汞与金属试样之间反应的一种出色方法。这一新程序可用于评估潜在新合金体系的汞齐化能力。