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Les Rencontres Internationales sur la Projection Thermique – RIPT 9 11th to 13th December 2019, Jülich, Germany Preliminary studies of TiO2 coatings deposition onto ABS polymer substrates by low pressure cold spraying M. Winnicki, M. Jasiorski, A. Baszczuk, B. Borak Wroclaw University of Science and Technology Faculty of Mechanical Engineering Lukasiewicza 5, 50-371 Wrocław, e-mail: [email protected] Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Outline of presentation • Titanium dioxide – why? • State of art in TiO2 deposition. • Low pressure cold spray operating principle. • Research genesis. • Process parameters. • Materials used in the research. • TiO2 crystalline coatings. • TiO2 amorphous coatings. • TiO2 mixed crystalline - amorphous coatings. • Polyamide – anatase composite coatings. 2 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Titanium dioxide – why? Gas sensors Water and air purification Photocatalysts Self-cleaning agent Antibacterial TiO2 agent Electrochromic Wide gap devices semiconductor Solar oxide cells 3 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Titanium dioxide – why? Rahim T.B.A., Fabrication of Cold Spray Ti-O Coatings Engineered from Agglomerated Powders, 2016, doctoral thesis 4 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying State of art in TiO2 deposition TiO2 coating Electro- CVD deposition Magnetron Dip sputtering coating Thermal spraying 5 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying State of art in TiO2 deposition An Introduction to Thermal Spray, Materials of Metal Spray Coating Corp., 11.2017 6 [http://metal-spray-coating.com/wp-content/uploads/2015/03/thermal_sparay.pdf] Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying State of art in TiO2 deposition Hanft D., et al., An Overview of the Aerosol Deposition Method: Process Fundamentals and New Trends in Materials 7 Applications, Journal of Ceramic Science and Technology, vol. 6(3), 2015, pp. 147-182 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Low pressure cold spray operating principle de Laval nozzle convergent part nozzle throat divergent part Powder Feeding 8 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research genesis Working gas temperature - 600 ˚C a,b,c – three analysed points at the coating surface 9 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research genesis 10 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Process parameters Substrate: ABS (Acrylonitrile Butadiene Styrene) polymer 11 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Materials used in the research Amorphous Anatase Polyamide PA 2200 100 µm 100 µm 100 µm 30 µm 50 µm 50 µm 10 µm 10 µm 12 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research plan 1 2 3 4 Amorphous+ PA2200+ Anatase Amorphous Anatase Anatase powder powder powder powder 200 °C 200 °C 200 °C 200 °C 300 °C 300 °C 300 °C 300 °C (i) Without (i) Without (i) Without treatment, treatment, treatment, Grit blasted (ii) grit (ii) grit (ii) grit 350 µm blasted 350 blasted 350 blasted 350 µm µm µm 13 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research plan 1 2 3 4 Amorphous+ PA2200+ Anatase Amorphous Anatase Anatase powder powder powder powder 200 °C 200 °C 200 °C 200 °C 300 °C 300 °C 300 °C 300 °C (i) Without (i) Without (i) Without Grit blasted treatment, treatment, treatment, 350 µm (ii) grit (ii) grit (ii) grit blasted 350 blasted 350 blasted 350 µm µm µm 14 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 crystalline coatings 250 µm Anatase powder - 200 ˚C / substrate without treatment 15 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 crystalline coatings 250 µm Anatase powder - 200 ˚C / substrate grit blaset – 350 µm 16 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 crystalline coatings 250 µm Anatase powder - 300 ˚C / substrate without treatment 17 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 crystalline coatings 250 µm Anatase powder - 300 ˚C / substrate grit blaset – 350 µm 18 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research plan 1 2 3 4 Amorphous+ PA2200+ Anatase Amorphous Anatase Anatase powder powder powder powder 200 °C 200 °C 200 °C 200 °C 300 °C 300 °C 300 °C 300 °C (i) Without (i) Without (i) Without treatment, treatment, treatment, Grit blasted (ii) grit (ii) grit (ii) grit 350 µm blasted 350 blasted 350 blasted 350 µm µm µm 19 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 amorphous coatings 250 µm Amorphous powder - 200 ˚C / substrate without treatment 20 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 amorphous coatings 250 µm Amorphous powder - 200 ˚C / substrate grit blaset – 350 µm 21 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 amorphous coatings 250 µm Amorphous powder - 300 ˚C / substrate without treatment 22 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 amorphous coatings 250 µm Amorphous powder - 300 ˚C / substrate grit blaset – 350 µm 23 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research plan 1 2 3 4 Amorphous+ PA2200+ Anatase Amorphous Anatase Anatase powder powder powder powder 200 °C 200 °C 200 °C 200 °C 300 °C 300 °C 300 °C 300 °C (i) Without (i) Without (i) Without treatment, treatment, treatment, Grit blasted (ii) grit (ii) grit (ii) grit 350 µm blasted 350 blasted 350 blasted 350 µm µm µm 24 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm Amorphous + Anatase powder (vol.% 50/50) - 200 ˚C / substrate without treatment 25 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm Amorphous + Anatase powder (vol.% 50/50) - 200 ˚C / substrate grit blaset – 350 µm 26 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm Amorphous + Anatase powder (vol.% 50/50) - 300 ˚C / substrate without treatment 27 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm Amorphous + Anatase powder (vol.% 50/50) - 300 ˚C / substrate grit blaset – 350 µm 28 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Research plan 1 2 3 4 Amorphous+ PA2200+ Anatase Amorphous Anatase Anatase powder powder powder powder 200 °C 200 °C 200 °C 200 °C 300 °C 300 °C 300 °C 300 °C (i) Without (i) Without (i) Without treatment, treatment, treatment, Grit blasted (ii) grit (ii) grit (ii) grit 350 µm blasted 350 blasted 350 blasted 350 µm µm µm 29 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm PA2200 + Anatase powder (vol.% 50/50) - 200 ˚C / substrate grit blaset – 350 µm 30 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying TiO2 mixed coatings 250 µm PA2200 + Anatase powder (vol.% 50/50) - 300 ˚C / substrate grit blaset – 350 µm 31 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Coatings bond strength 32 Preliminary studies of TiO2 coatings deposition onto ABS substrates by low pressure cold spraying Thank you for your attention 33 .