摘要
采用除油-粗化-敏化活化的方法对氧化铝空心球进行预处理,通过化学镀方法对氧化铝空心球进行表面改性,使用X射线衍射仪、扫描电子显微镜及能谱仪研究不同参数对化学镀层的影响,结果表明:在平均直径为0.5 mm的陶瓷空心球表面化学镀镍的最佳工艺为:硫酸镍(NiSO_(4)·6H2O)40 g·L^(-1),硼氢化钠2 g·L^(-1),柠檬酸钠90 g·L^(-1)。空心球镀镍铝基复合材料样品热处理后压缩强度有所降低,分别为226.2 MPa和188.1 MPa。镀镍的样品能量吸收能力明显小于未镀镍样品,应变达到50%时,铸态未镀镍样品的能量吸收能力为70.6 J·cm^(-3),热处理后的样品能量吸收能力为105.8 J·cm^(-3),前后增加了35.2 J·cm^(-3),镀镍样品热处理后的吸能能力分别为78.2 J·cm^(-3)和93.7 J·cm^(-3)。
The oxidized aluminum hollow balls were pretreated by degreasing,roughening,and activation,and then surface modified by chemical plating method.The influence of different parameters on the chemical plating layer was studied by using an X-ray diffractometer,scanning electron microscope and energy dispersive spectrometer.The results showed that the best chemical plating nickel process for the average diameter of 0.5 mm ceramic hollow balls were NiSO_(4)·6H_(2)O 40 g·L^(-1),sodium borohydride 2 g·L^(-1),and sodium citrate90 g·L^(-1).The compressive strength of the hollow ball nickel-aluminum composite material sample after heat treatment was reduced,respectively,to 226.2 MPa and 188.1 MPa.The energy absorption capacity of the nickel-plated sample was significantly lower than that of the unplated sample.When the strain reached 50%,the energy absorption capacity of the as-cast unplated sample was 70.6 J·cm^(-3),and the energy absorption capacity of the heat-treated sample was 105.8 J·cm^(-3),an increase of 35.2 J·cm^(-3).The energy absorption capacity of the nickel-plated sample after heat treatment was 78.2 J·cm^(-3) and 93.7 J·cm^(-3).
作者
谭广亮
柳泉
穆永亮
吕镖
刘贺
张武
郭策安
TAN Guangliang;LIU Quan;MU Yongliang;LYU Biao;LIU He;ZHANG Wu;GUO Ce’an(Shenyang Ligong University,Shenyang Liaoning 110169,China;Northeastern University,Shenyang Liaoning 110819,China;Taiyuan Satellite Launch Center,Xinzhou Shanxi 136304,China)
出处
《辽宁化工》
2025年第9期1482-1485,共4页
Liaoning Chemical Industry
基金
辽宁省教育厅基本科研项目(项目编号:JYTMS20230191)
辽宁省科技厅应用基础研究计划(项目编号:2023020243-JH2/1013)
沈阳理工大学“光选计划”人才资助项目(项目编号:SYLUGXRC14)
“科研团队”资助项目(项目编号:SYLUGXTD5)
辽宁省教育厅基本科研项目(项目编号:JYTMS20230187)。
关键词
陶瓷空心球
化学镀
铝基复合材料
压缩性能
Ceramic hollow balls
Electroless plating
Aluminum matrix composites
Compression performance
