ぬれ性についての研究(第 2 報) : Ag-Cu 系合金のぬれ性

概要

論文の詳細を見る
In the previous report the outhors described a device, specially designed, for the wettability test and the values of the surface tension of the Pb-Sn alloys, which were measured with the device. The present report describes the results of experimental measurement of the wettability, i. e. the interfacial tension, contact angle, work of adhesion and wetting index, for the Ag-Cu alloys and also for the commercial braze (Ag-Cu-Zn alloy). It contains the following. 1) Measurement of the densities of the Ag-Cu alloys at elevated temperatures. The density of metals and alloys at elevated temperatures has not so far been measured. To calculate the surface tension, it is necessary to determine the density, so the latter was measured for the Ag-Cu alloys at 900-1000℃, appling the above device. 2) Measurement of the surface tension at elevated temperatures. The values of surface tension of the Ag-Cu alloys measured at 1150℃ and the melting point plus 100℃ are given Fig. 5. The results for the commercial braze are in Fig. 7 3) Determination of the wettability. The contact angles of the Ag-Cu alloys for the stainless steel (SUS 27) plate were measured. From the measured values and the interfacial tension, the works of adhesion and the wetting indexes were calculated (Fig. 6). These vlues calculated for the commercial braze are given in Fig. 8.
社団法人溶接学会の論文
1965-07-25