Mackert J R, Adachi M, Goto T, Otani H
Shika Rikogaku Zasshi. 1981 Oct;22(60):257-61.
Porosity and strength of spherical Cu-rich alloy amalgams were analyzed in the under-graduate materials laboratory. The minimum value for porosity was obtained for 46% initial Hg content, whereas the maximum strengths were obtained for 42% initial Hg. This result did not coincide with the data previously obtained for the conventional spherical alloy amalgam, in which the maximum strength and the minimum porosity were strictly associated with the optimum initial Hg content. Although no critical value for porosity could be definitely demonstrated by this effort, this result may be an indirect indication for 4.5 vol% porosity as the critical value.
在本科材料实验室中分析了球形富铜合金汞齐的孔隙率和强度。对于初始汞含量为46%时获得了孔隙率的最小值，而对于初始汞含量为42%时获得了最大强度。该结果与先前获得的传统球形合金汞齐的数据不一致，在传统球形合金汞齐中，最大强度和最小孔隙率与最佳初始汞含量严格相关。尽管通过这项工作无法明确证明孔隙率的临界值，但该结果可能间接表明4.5%（体积）的孔隙率为临界值。
