退火保温时间对碳化硼微球涂层表面形貌的影响  

The influence of annealing heat preservation time on the surface morphologies of boron carbide coatings

作　　者：谢兰东 廖志君[1,2] 陈睿翀 苏明甫[1] 伍登学[1] 卢铁城[1,3] 

机构地区：[1]四JII大学物理系辐射物理及技术教育部重点实验室,成都610064 [2]四川大学高能量密度与物理技术教育部重点实验室,成都610064 [3]中国科学院国际材料物理中心,沈阳110015

出　　处：《四川大学学报（自然科学版）》2015年第5期1107-1111,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：国家重大科技专项子课题

摘　　要：采用电子束蒸发镀膜技术,并结合本课题组自行设计的磁控滚动三维沉积装置,以及真空连续加料装置,在Ф1-2mm钢球上沉积碳化硼微球涂层.通过X射线光电子能谱（XPS）、扫描电子显微镜（SEM）和原子力显微镜（AFM）,对退火处理中不同保温时间的碳化硼微球涂层进行表征.结果表明,微球涂层硼碳比较小,有部分B流失;不同的保温时间对微球形貌的影响比较明显.随着保温时间的增加,微球表面粗糙度逐渐增大,但致密性和力学性能同时也得到相应加强.确定保温时间为1-3h为最佳退火保温条件.By utilizing the magnetic control rolling 3 d deposition device designed by us, along with vacuum continuous feeding device, we are able to deposit the boron carbide coatings on 2 mm steel mandrels by means of electron beam evaporation. With techniques such as X-ray photoelectron spectroscopy （XPS）, scanning electron microscope （SEM） and atomic force microscope （AFM）, the boron carbide microspheres annealed in different time of heat preservation were characterized. The results showed that the proportion of boron and carbon was prejudiced small, with some B loss; the influence of different heat preservation time in annealing treatment on the boron carbide microspheres morphology was significant. With the increase of heat preservation time, the roughness of boron carbide microspheres increases gradually, and there is a respective and conspicuous increase in the density and mechanical properties of boron carbide microspheres. Finally we have concluded that l-3h is the best an-nealing heat preservation time.

关 键 词：ICF靶丸 电子束蒸发 碳化硼涂层 保温时间 表面形貌 

分 类 号：TQ025.1[化学工程]