当前位置: X-MOL 学术Surf. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Study on thermal conductivity of cold sprayed Cu coating
Surface Engineering ( IF 2.8 ) Pub Date : 2020-07-14 , DOI: 10.1080/02670844.2020.1790170
K. Cao 1 , M. Yu 1 , C. M. Liang 1 , H. Chen 1
Affiliation  

ABSTRACT In order to explore the main factors influencing the thermal conductivity of the cold sprayed Cu coating, four sets of Cu coatings with different deformation and annealing conditions were prepared by high/middle pressure cold spray systems followed by the annealing procedure. Microstructure and recrystallization analysis of the coatings were characterized by SEM and EBSD. Relationship of the thermal conductivity of the coating with the porosity and particle deformation was discussed. Results show that porosity is the main factor influencing the thermal conductivity of the Cu coating. The decrease in porosity by high pressure impacting of particles can improve the conductivity of the coating, while the annealing process can further decrease the porosity by increasing the annealing temperature and meanwhile eliminate the grain boundary by grain growth and recrystallization, which makes the annealing process an effective way to improve the conductivity of the cold sprayed Cu coating.

中文翻译:

冷喷涂铜涂层的热导率研究

摘要 为了探讨影响冷喷涂铜涂层热导率的主要因素,采用高/中压冷喷涂系统和退火工艺制备了四套不同变形和退火条件的铜涂层。通过SEM和EBSD表征了涂层的显微组织和再结晶分析。讨论了涂层的热导率与孔隙率和颗粒变形的关系。结果表明,孔隙率是影响Cu涂层热导率的主要因素。通过颗粒的高压冲击降低孔隙率可以提高涂层的导电性,
更新日期:2020-07-14
down
wechat
bug