Fractal Evaluation on Effective Dielectric Properties for High-Velocity Oxygen Fuel Sprayed LBS-SiCβ Composite Absorber Coatings
Tóm tắt
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 (Li2O-B2O3-SiO2)-SiCβ composite coatings. The modeling approaches to establishing the relationships between coating microstructure and absorbing property was checked.
Tài liệu tham khảo
X. Yuan, H. Wang, G. Hou, L. Jiang, and C. Yao, The Nano α-Fe/Epoxy Resin Composite Absorber Coatings Fabricated by Thermal Spraying Technique, IEEE Trans. Magn., 2006, 42(9), p 2115-2120
M. Bégard, K. Bobzin, G. Bolelli, A. Hujanen, P. Lintunen, D. Lisjak, S. Gyergyek, L. Lusvarghi, M. Pasquale, K. Richardt, T. Schläfer, and T. Varis, Thermal Spraying of CO, Ti-Substituted Ba-Hexaferrite Coatings for Electromagnetic Wave Absorption Applications, Surf. Coat. Technol., 2009, 203(20-21), p 3312-3319
I. Tano, M. Gupta, N. Curry, P. Nylén, J. Wigren, and Trollhättan, Relationships between Coating Microstructure and Thermal Conductivity in Thermal Barrier Coatings—A Modeling Approach, Thermal Spray: Global Solutions for Future Application, Thermal Spray: Global Solutions for Future Application, K. Middeldorf, Ed., ASM International, Singapore, 2010, p 264-268
C.-J. Li, G.-J. Yang, and A. Ohmori, Relationship Between Particle Erosion and Lamellar Microstructure for Plasma-Sprayed Alumina Coatings, Wear, 2006, 260, p 1166-1172
J. Wilden and H. Frank, Thermal Spraying—Simulation of Coating Structure, Thermal Spray: Building 100 Years of Success, B.R. Marple, Ed., ASM International, Seattle, WA, 2006, p 287-292
C.-J. Li and A. Ohmori, Relationships Between the Microstructure and Properties of Thermally Sprayed Deposits, J. Therm. Spray Technol., 2002, 11(3), p 365-374
M.K. Gupta, “Establishment of Relationships between Coating Microstructure and Thermal Conductivity in Thermal Barrier Coatings by Finite Element Modelling,” M.E. Thesis, West University, 2010, p 15-16
I. Tano, M. Gupta, N. Curry, P. Nylén, and J. Wigren, Relationships Between Coating Microstructure and Thermal Conductivity in Thermal Barrier Coatings—A Modelling Approach, Thermal Spray: Global Solutions for Future Application, K. Middeldorf, Ed., ASM International, Singapore, 2010, p 66-72
M. Li and P.D. Christofides, Modeling and Control of High-Velocity Oxygen-Fuel (HVOF) Thermal Spray: A Tutorial Review, J. Therm. Spray Technol., 2009, 18(5-6), p 753-768
R. Ghafouri-Azar, J. Mostaghimi, and S. Chandra, Modeling Development of Residual Stresses in Thermal Spray Coatings, Comput. Mater. Sci., 2006, 35(1), p 13-26
W. Tillmann, B. Klusemann, J. Nebel, and B. Svendsen, Analysis of the Mechanical Properties of an Arc-Sprayed WC-FeCSiMn Coating: Nanoindentation and Simulation, J. Therm. Spray Technol., 2011, 20(1), p 328-335
B. Klusemann, R. Denzer, and B. Svendsen, Microstructure Based Modeling of Residual Stresses in WC-12Co Sprayed Coatings, J. Therm. Spray Technol., 2012, 21(1), p 96-107
K. Bobzin, N. Kopp, T. Warda, and M. Öte, Determination of the Effective Properties of Thermal Spray Coatings Using 2D and 3D Models, J. Therm. Spray Technol., 2012, 21(6), p 1269-1277
T. Wiederkehr, B. Klusemann, D. Gies, H. Müller, and B. Svendsen, An Image Morphing Method for 3D Reconstruction and FE-Analysis of Pore Networks in Thermal Spray Coatings, Comput. Mater. Sci., 2010, 47(4), p 881-889
S. Guessasma, G. Montavon, and C. Coddet, On the Implantation of the Fractal Concept to Quantify Thermal Spray Deposit Characteristics, Surf. Coat. Technol., 2003, 173(1), p 24-28
L. Jylhä, and A. Sihvola, Equation for the effective permittivity of particle-filled composites for material design applications, J. Phys. D: Appl. Phys., 2007, 40, p 4966-4973
Y. Wang, “Effect of the Spray Particle State on the Adhesive Strength of High Velocity Oxy-Fuel Sprayed Coatings,” Ph.D. Thesis, Xi’an Jiaotong University, 2001, p 67-69
R. Sharman, J.M. Tyler, and O.S. Pianykh, A Fast and Accurate Method to Register Medical Images Using Wavelet Modulus Maxima, Pattern Recogn. Lett., 2000, 21, p 447-462
C. Parra, K. Iftekharuddin, and D. Rendon, Wavelet Based Estimation of the Fractal Dimension in fBm Images, Neural Engineering, March 20-22, 2003 (Capri Island, Italy), IEEE Conference Publications, 2003, p 533-536
C. Heneghan, S.B. Lowen, and M.C. Teich, Two Dimensional Fractional Brownian Motion: Wavelet Analysis and Synthesis, Image Analysis and Interpretation, April 8-9, 1996 (San Antonio TX), IEEE Conference Publications, 1996, p 213-217
X. Yuan, H. Wang, and B. Zha, Submicron Fe/Polyamide Composite Absorber Coating by Low Temperature High Velocity Air Fuel Spray Technique, Surf. Coat. Technol., 2007, 201, p 7130-7137
D.V. Hahn, M.B. Thomas, and D.W. Blodgett, Characterization and Modeling of the Infrared Properties of Diamond and SiC, Window and Dome Technologies VIII, R.K. Tyson and M. Lloyd-Hart, Ed., Vol 5078 (2003) (San Diego, CA), SPIE, p 148-158