Possibility of spraying of copper coatings on polyamide 6 with low pressure cold spray method

Małachowska, Aleksandra; Winnicki, Marcin; Konat, Łukasz; Piwowarczyk, Tomasz; Pawłowski, Lech; Ambroziak, Andrzej; Stachowicz, M.

doi:10.1016/j.surfcoat.2017.02.001

Cited by 34 publications

(30 citation statements)

References 35 publications

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“…During the first passes, the low gas flux should have resulted in comparatively large and slow particles. The larger particles increase the local heat input into the substrate allowing for plastic deformation and the formation of a mixed zone analogous to (Ref 14 ). In contrast to the mixed zone in Fig.…”

Section: Resultsmentioning

confidence: 89%

“…For this purpose, a low temperature process gas jet and small particles can be used. To avoid substrate erosion, the Cu particles should exhibit a higher deformability than the particles in (Ref 14 ). Avoiding substrate deformation completely is, however, not desirable as well with regard to the secondary goal.…”

Section: Experimental Considerationsmentioning

confidence: 99%

“…

Fig. 1 Particle embedding after cold spraying of Cu on PA6 substrates after one pass (a) and after three passes (b) after [ 14 ] …”

Section: Introduction and State Of The Artmentioning

confidence: 99%

“…Cold-sprayed Cu coatings were only successfully applied on the high temperature thermoplastics polyether ether ketone (PEEK) and polyetherimide (PEI) without interlayer (Ref 12 ) and on the technical thermoplastics polyvinylchloride (PVC) (Ref 8 , 13 ) and PA6 (Ref 14 ) using an interlayer. The direct application of a Cu coating on PA6 has so far not been feasible (Ref 8 ).…”

Section: Introduction and State Of The Artmentioning

confidence: 99%

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Development of Thermal Spray Processes for Depositing Coatings on Thermoplastics

Bobzin¹,

Wietheger²,

Knoch³

2021

J Therm Spray Tech

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Thermoplastics combine high freedom of design with economical mass production. Metallic coatings on thermoplastics enable power and signal transmission, shield sensitive parts inside of housings and can reduce the temperature in critical areas by functioning as a heat sink. The most used technical thermoplastics are polyamides (PA), while the described use cases are often realized using Cu. Consequently, several studies tried to apply copper coatings on PA substrates via thermal spraying; so far, this combination is only feasible using an interlayer. In this study, a new approach to metallize thermoplastics via thermal spraying based on validated state-of-the-art predictions of the thermoplastics’ material response at relevant temperatures and strain rates is presented. Using these predictions, high velocity wire-arc spraying was selected as coating process. Furthermore, the process parameters were adapted to realize a continuous coating while also roughening the substrate during coating deposition. The resulting Cu coating on PA6 had a sufficiently high coating adhesion for post-treatment by grinding. The adhesion is achieved by in situ roughening during the coating application. The results indicate that different process parameters for initial layer deposition and further coating buildup are required due to the low thermal stability of PA6.

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Section: Resultsmentioning

confidence: 89%

Section: Experimental Considerationsmentioning

confidence: 99%

“…

Fig. 1 Particle embedding after cold spraying of Cu on PA6 substrates after one pass (a) and after three passes (b) after [ 14 ] …”

Section: Introduction and State Of The Artmentioning

confidence: 99%

Section: Introduction and State Of The Artmentioning

confidence: 99%

See 2 more Smart Citations

Development of Thermal Spray Processes for Depositing Coatings on Thermoplastics

Bobzin¹,

Wietheger²,

Knoch³

2021

J Therm Spray Tech

View full text Add to dashboard Cite

show abstract

“…Consequently, some coatings protecting their surface were useful [364]. Thermoplastic polymers are easier to be coated than thermosetting polymers because of their thermal softening [365][366][367]. However, particularly interesting for industrial applications are polymer matrix composite (PMC) such as e.g., such with the polyimide resin as a matrix.…”

Section: Polymers As Substratesmentioning

confidence: 99%

Review of Functionally Graded Thermal Sprayed Coatings

et al. 2020

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The paper briefly describes major thermal spray techniques used to spray functionally graded coatings such as atmospheric plasma spraying, high velocity oxy-fuel spraying, suspension and solution precursor plasma spraying, and finally low and high pressure cold gas spray method. The examples of combined spray processes as well as some examples of post spray treatment including laser and high temperature treatments or mechanical one, are described. Then, the solid and liquid feedstocks used to spray and their properties are shortly discussed. The reviewed properties of functional coatings include: (i) mechanical (adhesion, toughness, hardness); (ii) physical (porosity, thermal conductivity and diffusivity, thermal expansion, photo-catalytic activity), and; (iii) bioactivity and simulated body fluid (SBF) corrosion. These properties are useful in present applications of functionally graded coatings as thermal barriers, the bioactive coatings in prostheses, photo-catalytic coatings in water treatment, coatings used in printing industry (anilox and corona rolls). Finally, some of the future possible fields of functional thermal sprayed coatings applications are discussed, e.g., to coat polymer substrates or to use the cheap technology of low pressure cold gas spray method instead of expensive technology of vacuum plasma spraying to obtain bond coatings.

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Supersonic particle deposition as an additive technology: methods, challenges, and applications

Monette

Kasar

Daroonparvar

et al. 2019

Int J Adv Manuf Technol

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Possibility of spraying of copper coatings on polyamide 6 with low pressure cold spray method

Cited by 34 publications

References 35 publications

Development of Thermal Spray Processes for Depositing Coatings on Thermoplastics

Development of Thermal Spray Processes for Depositing Coatings on Thermoplastics

Review of Functionally Graded Thermal Sprayed Coatings

Supersonic particle deposition as an additive technology: methods, challenges, and applications

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