scholarly journals Properties of Copper Coatings Sprayed by Cold Spray and High Velocity Flame Spray Process

2004 ◽  
Vol 2004.41 (0) ◽  
pp. 231-232
Author(s):  
Emi KITADE ◽  
Satomi HIRAISHI ◽  
Yu TAKENOUCHI ◽  
Kazuhiko SAKAKI ◽  
Yasuo SHIMIZU
Keyword(s):  
Cold Spray ◽  
High Velocity ◽  
Flame Spray ◽  
Spray Process ◽  
Copper Coatings

Aluminum and copper deposition through the process of thermal flame spray on polypropylene-pine wood fiber composite filaments and their applications

2021 ◽  
pp. 002199832110365
Author(s):  
Sônia MA Veroneze ◽  
Thais HS Flores-Sahagun ◽  
Ramón SC Paredes ◽  
Kestur Gundappa Satyanarayana
Keyword(s):  
Fiber Composite ◽  
Wood Fiber ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Flame Spray ◽  
Pine Wood ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Copper Coatings ◽  
Study Results

This paper presents a study about polypropylene-pine wood composites, both as filaments and products, coated with aluminum (Al) or copper (Cu), obtained through flame thermal spray process after subjecting the composites to thermal treatments in the second and third step of the study. Results revealed that a previous aluminum layer was needed in order to obtain copper coatings on the composites. The physical and mechanical properties of both metal coated composite filaments were also evaluated and compared with the uncoated composite filaments with and without heat treating these. Consequently, it was observed that the nature of the coating adhesion on the substrates was mechanical, and therefore abrasion blasting of filaments or the use of a higher wood fiber content in the composite improved the Al or Cu adhesion. Also, it was observed that extruded wood fiber/PP filaments should not be cooled in water because pieces might be molded directly once the moisture affects the metal coatings adhesion onto the substrates.

scholarly journals Numerical Analysis of Multicomponent Suspension Droplets in High-Velocity Flame Spray Process

2014 ◽  
Vol 23 (6) ◽  
pp. 940-949 ◽  
Author(s):  
Ebrahim Gozali ◽  
Mahrukh Mahrukh ◽  
Sai Gu ◽  
Spyros Kamnis
Keyword(s):  
Numerical Analysis ◽  
High Velocity ◽  
Flame Spray ◽  
Spray Process

scholarly journals Modeling the Effects of Concentration of Solid Nanoparticles in Liquid Feedstock Injection on High-Velocity Suspension Flame Spray Process

2016 ◽  
Vol 55 (9) ◽  
pp. 2556-2573 ◽  
Author(s):  
Mahrukh Mahrukh ◽  
Arvind Kumar ◽  
Sai Gu ◽  
Spyros Kamnis ◽  
Ebrahim Gozali
Keyword(s):  
High Velocity ◽  
Flame Spray ◽  
Spray Process ◽  
Liquid Feedstock

scholarly journals SPH modeling of adhesion in fast dynamics: Application to the Cold Spray process

2016 ◽  
Vol 344 (4-5) ◽  
pp. 211-224 ◽  
Author(s):  
Paul Profizi ◽  
Alain Combescure ◽  
Kahuziro Ogawa
Keyword(s):  
Cold Spray ◽  
Cold Spray Process ◽  
Spray Process

Significant influence of carrier gas temperature during the cold spray process

2014 ◽  
Vol 30 (6) ◽  
pp. 443-450 ◽  
Author(s):  
S. Yin ◽  
X. Suo ◽  
H. Liao ◽  
Z. Guo ◽  
X. Wang
Keyword(s):  
Cold Spray ◽  
Significant Influence ◽  
Gas Temperature ◽  
Cold Spray Process ◽  
Carrier Gas ◽  
Spray Process

THE EFFECT OF FUEL TO OXYGEN RATIOS ON THE PROPERTIES OF HIGH VELOCITY OXY-FUEL TiO2 NANO-PHOTOCATALYST COATINGS

2010 ◽  
Vol 24 (02) ◽  
pp. 247-255 ◽  
Author(s):  
MARYAMOSSADAT BOZORGTABAR ◽  
MEHDI SALEHI ◽  
MOHAMMADREZA RAHIMIPOUR ◽  
MOHAMMADREZA JAFARPOUR
Keyword(s):  
Electron Microscopy ◽  
Crystallite Size ◽  
High Velocity ◽  
X Ray Diffraction ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Transmission Electron ◽  
Hvof Thermal Spray ◽  
Coating Morphology ◽  
Oxygen Ratio

A liquid fuel high velocity oxy-fuel (HVOF) thermal spray process has been used to deposit TiO 2 photocatalytic coatings utilizing a commercially available anatase/rutile nano-powder as the feedstock. The coatings were characterized in terms of the phases present, its crystallite size and coating morphology by means of X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy, respectively. The results indicate that the sprayed TiO 2 coatings were composed of both TiO 2 phases, namely anatase and rutile with different phase content and crystallite size. A high anatase content of 80% by volume was achieved at 0.00015 fuel to oxygen ratio with nanostructure coating by grain size smaller than feedstock powder. It is found that fuel to oxygen ratio strongly influenced on temperature and velocity of particles in stream jet consequently on phase transformation of anatase to rutile and their crystallite size and by optimizing the ratio which can promote structural transformation and grain coarsening in coating.

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