超声波对电沉积Pd-Ni-P合金的影响  

InfluencesofUltrasound on Process of Electrodeposited Pd-Ni-P Alloy and Film Performance

作　　者：周颖华[1,2] 牛振江[1] 

机构地区：[1]浙江省固体表面反应化学重点实验室浙江师范大学物理化学研究所,浙江金华321004 [2]浙江金华教育学院,浙江金华321000

出　　处：《材料保护》2016年第7期35-37,6,共3页Materials Protection

摘　　要：合金电镀应用广泛,但将超声波用于合金电镀的研究还不系统。以超声波与电沉积相结合制备Pd-Ni-P合金,通过扫描电镜(SEM)、能谱仪(EDX)、X射线衍射仪(XRD)等对Pd-Ni-P合金镀层的形貌、成分和组织结构进行了表征,采用循环伏安法研究了超声波对Pd-Ni-P合金电沉积的影响。结果表明:超声波作用使沉积层中Pd的含量增加,镀层表面更致密均匀;超声波振荡有利于溶液中离子的传质过程,主要是提高了Pd2+的沉积速率;在1.0 mol/L Na OH溶液中,超声波作用显著增强了Pd-Ni-P合金镀层的耐腐蚀性能,使腐蚀电位正移80 m V。Pd-Ni-P alloy film was prepared by electrodeposition technology under ultrasonic condition.Subsequently,scanning electron microscope(SEM),energy dispersive spectrometer(EDX) and X-ray diffractometer(XRD) were used to characterize the morphology,composition and structure of Pd-Ni-P alloy film.Results showed that the ultrasound caused the increase of Pd content in deposition layer,and the surface of film became more uniform.Moreover,the ultrasonic oscillation was beneficient to the mass-transfer process of ions in solution,and improved the deposition rate of Pd^(2+).In1.0 mol/L NaOH solution,the ultrasonic effect significantly enhanced the corrosion resistance of Pd-Ni-P alloy film,and the corrosion potential was shifted by 80 mV.

关 键 词：Pd-Ni-P合金 电沉积 超声波 循环伏安法 XRD SEM EDX 耐腐蚀性 

分 类 号：TQ153.2[化学工程—电化学工业]