Ni-W-纳米Al_2O_3复合涂层沉积特性的研究  

Study on Co-deposited Characteristics of Ni-W-nano Al_2O_3 Composite Coatings

作　　者：朱邦同[1] 吴玉程[1] 李云[1] 舒霞[1] 王莉萍[1] 黄新民[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009

出　　处：《人工晶体学报》2008年第1期129-133,共5页Journal of Synthetic Crystals

基　　金：安徽省重点科研项目(No.05022047);国家自然科学基金项目(No.20571022);博士学科专项科研基金(No.20060359011)

摘　　要：采用复合电镀的方法制备出Ni-W-纳米Al2O3复合涂层,研究了Al2O3添加量、温度和超声波分散等沉积条件对复合涂层沉积特性如沉积速率、Al2O3复合量和显微硬度的影响。结果表明,随着纳米Al2O3添加量的增加,复合涂层的沉积速率、Al2O3复合量和显微硬度不断增加,但当Al2O3添加量达到15g/L时沉积速度开始下降,Al2O3添加量达到17.5g/L时硬度开始下降;适宜的镀液温度大约为80℃,超声波分散时间大约为1h。Ni-W-nano Al2O3 composite coatings were co-deposited by composite plating method. The effects of Al2O3 concentration in electrolyte, temperature and ultrasonic stirring on the co-deposited characteristics such as deposition rate, Al2O3 content in coating and micro-hardness were investigated. The results show that deposition rate, Al2O3 content in coating and micro-hardness increase with the increase of Al2O3 concentration in electrolyte, but deposition rate will decrease when Al2O3 concentration in electrolyte reaches reaches 17.5g/L. The were determined. 15g/L. Micro-hardness will decrease when Al2O3 concentration in electrolyte appropriate temperature at about 80℃ and time of ultrasonic disperse in about lh

关 键 词：沉积条件 Ni-W-纳米Al2O3复合涂层 沉积特性 

分 类 号：TB33[一般工业技术—材料科学与工程]