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- Title
Fractal Evaluation on Effective Dielectric Properties for High-Velocity Oxygen Fuel Sprayed LBS-SiC Composite Absorber Coatings.
- Authors
Yuan, Xiaojing; Zha, Bailin; Wang, Hangong
- Abstract
An evaluation of microstructure-property relationship is important for thermally sprayed composite absorber coatings, because self-similarity in the microstructure is a key characteristic that can affect coating properties, such as flattened particle shape, pores, absorbent phase, and coating thickness. In this paper, a multiscale effective fractal model is reported to characterize the microstructure-property relationship for high-velocity oxygen fuel (HVOF) sprayed composite coatings. It shows the fractal of coating structure was presented to calculate the volume fraction of thermally sprayed absorber coatings with wavelet-fractal algorithm. As an example, the flattened particle shape, porosity, and thickness were researched for the microwave reflectivity coefficient of HVOF sprayed nanometer LBS (LiO-BO-SiO)-SiC composite coatings. The modeling approaches to establishing the relationships between coating microstructure and absorbing property was checked.
- Subjects
METAL spraying; FRACTALS; DIELECTRICS; METAL coating; METALLIC composites; MICROSTRUCTURE
- Publication
Journal of Thermal Spray Technology, 2013, Vol 22, Issue 5, p723
- ISSN
1059-9630
- Publication type
Article
- DOI
10.1007/s11666-013-9897-8