110keV质子辐照温控涂层性能变化的XPS分析  

XPS Study of Property Changes of the Themal Control Coatings with 110keV Proton Irradiation

作　　者：文万信[1] 杨生胜 王立 

机构地区：[1]苏州大学放射医学系,苏州215007 [2]真空低温国家级重点实验室,兰州730000

出　　处：《高能物理与核物理》2006年第4期364-367,共4页High Energy Physics and Nuclear Physics

基　　金：国防科技重点实验室基金(5147030401ZK5103)资助

摘　　要：实验研究了注量在1．0×1011-1．0×1016p／cm2范围依次变化时110keV质子辐照引起的温控涂层热光性能的变化,并使用XPS谱仪分析了辐照样品化学态的变化．实验结果表明,质子注量不高于 1．0×1014p／cm2时,同种材料的温控涂层样品的相对光反射率变化很小,同时同种材料样品的表面化学结构如化学位移和元素的比例变化很小．当注量高于1．0×1014p／cm2时,样品的相对光反射率变化明显,样品表面的原子化学结构变化大,化学位移明显增加,元素比例变化显著,所有样品表面的C元素比例明显增大而O元素比例明显减小．一定注量的低能质子辐照能够使某些低太阳吸收率αs的温控涂层的太阳吸收率变得更低,具有改善热光性能的效果．质子辐照之后温控涂层样品表面化学结构的变化与样品的物理性能的变化存在直接的关联．Irradiation of 110keV proton beam with exposure ranging from 1.0 × 10^11 to 1.0 × 10^17p/cm^2 onto the thermal control coatings of 6 different materials was performed, the changes of thermal properties were investigated and the surface chemical structure was analyzed by X-ray photoelectron spectroscopy XPS. It showed that the thermal properties of all the specimens was no obvious change and the surface chemical structure such as the chemical shift and elemental ratios changed little with the proton exposure less than 1.0 × 10^14p/cm^2. Nevertheless, the thermal properties and surface chemical structure changed significantly with the proton exposure over 1.0×10^14p/cm^2, for all the specimens the elemental ratio of C increased while the element ration of O decreased on the other hand. It is revealed that the proton irradiation with proper energy and fluence could improve the thermal properties of some thermal control coating of low solar absorptance. The changes both of the physics property and the surface chemical structure of the thermal control coatings resulting from the proton irradiation took place in phase.

关 键 词：温控涂层 质子辐照 反射率 化学结构 

分 类 号：V254.2[一般工业技术—材料科学与工程]