摘要
采用雾化法制备Ag-(9.7-x/10)Sn-xIn(x=0,0.5,1.0,1.5,2.0)(质量分数,%)合金粉末。将Ag-Sn-In合金粉末在空气中进行内氧化,研究了合金粉末的氧化参数。结果表明,x=0.5的样品的氧化率始终低于x=0的样品的,说明微量添加In未促进氧化率的提高,相反抑制了其氧化过程;x=1.0,1.5,2.0的样品氧化率的变化奇异:在温度低于700℃时,它们的氧化率高于x=0;当温度和保温时间达到一定数值时,x=0的氧化率变得更高。这说明在低温氧化时,添加In(1.0≤x≤2.0)有利于氧化进行,而高温长时间氧化时,添加In作用不大,甚至会降低氧化率。通过全面实验探测出各样品均能取得较优氧化率的合理氧化温度为750℃。
Ag-（9.7-x/10）Sn-xIn（x=0, 0.5, 1.0, 1.5, 2.0, wt%） alloy powders were prepared by atomization. Within the Ag-Sn-In alloy powders were oxidized in air. The results show that the oxidation rate of the samples of x = 0.5 is always lower than that of the samples with x = 0, indicating trace In addition cannot increase the oxidation rate, instead it inhibits the oxidation. The oxidation rate of the samples with x = 1.0, 1.5, 2.0 varies oddly. When the temperature is below 700 °C, their oxidation rate is obviously higher than that of the samples with x = 0; however, when the oxidizing temperature and holding time reach certain values, the oxidation rate of samples with x = 0 becomes higher. It is shown that at low temperature oxidizing for short time, In addition（x =1.0, 1.5, 2.0） is beneficial for oxidation reaction, but at high temperature oxidation for a long time, the effect of the In addition is slight, and it even decreases the oxidation reaction. According to the comprehensive test, we conclude that the reasonable oxidizing temperature is 750 °C for various samples to obtain a better oxidation rate.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2017年第10期3023-3027,共5页
Rare Metal Materials and Engineering
基金
广西科技攻关项目(桂科攻14122007-29)
