摘要
通过空气喷涂方法制备了一种新型的高辐射涂层。涂层主要成分包括无定型硼硅玻璃粉、Mg_2B_2O_5、MoSi_2和SiB_4。涂层的厚度约50μm。通过实验发现,涂层具有优良的抗热震性能(能够经受超过100次的从950℃到水温的冷热循环)。在950℃,涂层的平均辐射率为0.905±0.024。经过100次的热循环后,涂层的辐射系数有轻微的减小。
In the present paper,we prepared a new high emissivity coating by a spray painting method.The coating contains amorphous borosilicate glass,Mg2B2O5,MoSi2 and SiB4 and has the thickness of about 50 μm.Results show that the coating exhibits excellent thermal shock resistance（more than 100 thermal cycles from 950 ℃to water temperature）.The average emissivity of the coating is 0.905±0.024 at 950 ℃and has a slight degradation after 100 thermal cycles.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2016年第3期588-592,共5页
Rare Metal Materials and Engineering
关键词
涂层
辐射率
热防护系统
抗热震性能
coating
emissivity
thermal protection system
thermal shock resistance
