摘要
应用分形维数对微弧等离子喷涂纳米AT13涂层的界面进行研究,结果表明:随喷涂电流的增加,纳米AT13涂层的界面分维不断增大,其结合强度也不断提高;随着氩气压力的增加,纳米AT13涂层的界面分维和结合强度都先增大后减小;界面分维D可用于表征涂层结合强度σ,σ随D的增大而增大,且ln(σ)与D之间呈近似线性关系:ln(σ)=17.6D-26.2.
Fractal dimension has been applied to study the interface of nanostructured AT13 coatings deposited by micro-plasma spraying. The result shows that the higher the spraying current, the greater the fractal dimension and adhesive strength. Fractal dimension and adhesive strength increase firstly and then decrease with increase of Ar flow rate. Fraetal dimension can be used to characterize adhesive strength of the coatings. Adhesive strength increases with rising of fraetal dimension. There is a proximate linear relationship between the logarithm of adhesive strength and fraetal dimension： ln（σ）=17.6D-26.2.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2008年第2期1241-1245,共5页
Acta Physica Sinica
关键词
纳米涂层
分形数维
界面
结合强度
nanostructured coating, fractal dimension, interface, adhesives strength
