Kim H W
Fukuoka Shika Daigaku Gakkai Zasshi. 1989;16(2):118-37.
Studies on new gallium alloy using liquid alloy of Ga-Sn-In which was stable at room temperature and with Ag-Sn-Cu-Pd-Zn alloy as powder, were undertaken. Two kinds of gallium alloy by addition of SiC whisker and titanium powder were made on an experimental basis for the purpose of improving the property of this alloy (reinforced alloy). Physical properties such as compressive strength, diametral tensile strength, dimensional change and chemical properties such as discoloration, corrosion, quantitative analysis by Inductively Coupled Plasma were measured. Furthermore breakage surface of alloy after tensile test was observed with SEM. The effect of adding SiC whisker and titanium powder to gallium alloy was discussed and the conclusions were as follows; 1) Compressive strength: Initial strength decreased due to addition of SiC whisker and titanium powder. However, it showed a tendency to increase as time elapsed. It approached the same degree of compressive strength after 7 days. 2) Diametral tensile strength: The best results were obtained by addition of 1% SiC whisker to gallium alloy and the optimum trituration time was 13 seconds in this study. 3) Dimensional change: Expansion in the dimensional change was observed in all testing groups which was slightly over the limitation of ISO and ADA No.1 specification. 4) Discoloration: In the case with addition of titanium powder to gallium alloy, an improvement of discoloration was manifested in artificial saliva and 1% NaS, especially prominent in the former. The favorable results were obtained by addition of 10% titanium powder to gallium alloy for discoloration tolerance. 5) Corrosion: The corrosion was low in four kinds of test immersion liquid. The best results were obtained by addition of 10% titanium powder to gallium alloy. 6) Quantitative analysis by Inductively Coupled Plasma: The examined amount of Zn dissolved out from core composition was decreased due to addition of titanium powder. An improvement of amount in dissolution of Ga, Sn and In from matrix was recognized. 7) In physical and chemical experiment's results, it was judged that the addition of 0.5-0.7% SiC whisker and 5-10% titanium powder was useful.
对以室温下稳定的Ga-Sn-In液态合金以及Ag-Sn-Cu-Pd-Zn合金粉末为原料的新型镓合金进行了研究。为改善该合金性能（增强合金），在实验基础上制备了两种添加SiC晶须和钛粉的镓合金。测量了诸如抗压强度、径向拉伸强度、尺寸变化等物理性能以及诸如变色、腐蚀、电感耦合等离子体定量分析等化学性能。此外，用扫描电子显微镜观察了拉伸试验后合金的断裂表面。讨论了向镓合金中添加SiC晶须和钛粉的效果，得出以下结论：1）抗压强度：添加SiC晶须和钛粉后初始强度降低。然而，随着时间推移有增加的趋势。7天后抗压强度接近相同程度。2）径向拉伸强度：在本研究中，向镓合金中添加1% SiC晶须获得了最佳结果，最佳研磨时间为13秒。3）尺寸变化：在所有测试组中均观察到尺寸变化中的膨胀，略超过ISO和ADA No.1规范的限制。4）变色：在向镓合金中添加钛粉的情况下，在人工唾液和1% NaS中变色得到改善，在前一种情况中尤为突出。向镓合金中添加10%钛粉获得了良好的耐变色结果。5）腐蚀：在四种测试浸泡液中腐蚀程度较低。向镓合金中添加10%钛粉获得了最佳结果。6）电感耦合等离子体定量分析：由于添加钛粉，从核心成分中溶解出的锌的检测量减少。基体中Ga、Sn和In的溶解量得到改善。7）在物理和化学实验结果中，判断添加0.5 - 0.7% SiC晶须和5 - 10%钛粉是有用的。
