Surface Finishing Tutorial

#333 Ceramic Spraying - Powder Flame Spraying

Category : Thermal Spraying

March 2, 2018

Ceramic spraying uses ceramics consisting primarily of aluminum oxide, chromium oxide, titanium oxide, or zirconium oxide as spraying materials, in the following methods: plasma spraying, powder flame spraying, and rod flame spraying.

(2)Powder flame thermal spraying films

[Table 2] shows the types and symbols of powder flame thermal spraying films.

[Table 2] Types and symbols of powder flame thermal spraying films

Type		Symbol	Main ingredients of the spraying materials	Intended use
Alumina spraying	Type 1 A	T-WAO-1	AL₂O₃ 98% or more	Abrasion resistance
	Type 2 A	T-WAO-2		Chemical resistance
	Type 3 A	T-WAO-3		Heat resistance and insulation
	Type 1 B	T-GAO-1	AL₂O₃ 94% or more TiO₂ 1.5-4.0%	Abrasion resistance
	Type 2 B	T-GAO-2	AL₂O₃ 94% or more TiO₂ 1.5-4.0%	Chemical resistance
Alumina/titania spraying	Type 1 A	T-AO-TiO-13-1	AL₂O₃ 85% or more TiO₂ 12-14%	Abrasion resistance
	Type 2 A	T-AO-TiO-13-2	AL₂O₃ 85% or more TiO₂ 12-14%	Chemical resistance
	Type 1 B	T-AO-TiO-40-1	AL₂O₃ 58% or more TiO₂ 39-41%	Abrasion resistance
	Type 2 B	T-AO-TiO-40-2	AL₂O₃ 58% or more TiO₂ 39-41%	Chemical resistance
Chromium oxide spraying	Type 1 A	T-CrO-1	Cr₂O₃ 98% or more	Abrasion resistance
	Type 2 A	T-CrO-2	Cr₂O₃ 98% or more	Chemical resistance
	Type 1 B	T-CrO-TiO-3-1	TiO₂ 53% or more Cr₂O₃ 44-46%	Abrasion resistance
	Type 2 B	T-CrO-TiO-3-2	TiO₂ 53% or more Cr₂O₃ 44-46%	Chemical resistance
Zirconia spraying	Type 2 A	T-ZrO-2	ZrO₂ 98% or more	Chemical resistance
	Type 3 A	T-ZrO-3	ZrO₂ 98% or more	Heat resistance and insulation
	Type 2 B	T-ZrO-SiO-32-2	ZrO₂ 64% or more SiO₂ 31-34%	Chemical resistance
	Type 3 B	T-ZrO-SiO-32-3	ZrO₂ 64% or more SiO₂ 31-34%	Heat resistance and insulation
	Type 2 C	T-ZrO-CaO-7-2	ZrO₂ 90% or more CaO 6-8%	Chemical resistance
	Type 3 C	T-ZrO-CaO-7-3	ZrO₂ 90% or more CaO 6-8%	Heat resistance and insulation
	Type 2 D	T-ZrO-NgO-24-2	ZrO₂ 73% or more MgO 23-25%	Chemical resistance
	Type 3 D	T-ZrO-MgO-24-3	ZrO₂ 73% or more MgO 23-25%	Heat resistance and insulation
	Type 2 E	T-ZrO-YO-8-2	ZrO₂ 89% or more Y₂O₃ 7-9%	Chemical resistance
	Type 3 E	T-ZrO-YO-8-3	ZrO₂ 89% or more Y₂O₃ 7-9%	Heat resistance and insulation
	Type 2 F	T-ZrO-YO-12-2	ZrO₂ 85% or more Y₂O₃ 11-13%	Chemical resistance
	Type 3 F	T-ZrO-YO-12-3	ZrO₂ 85% or more Y₂O₃ 11-13%	Heat resistance and insulation

*	Meaning of the symbols: P: Plasma (plasma spraying), T: Thermal (powder frame spraying), R: Rod (rod flame spraying) WAO: White Aluminum Oxide, GAO: Gray Aluminum Oxide AO:AL₂O₃,TiO:TiO₂,CrO:Cr₂O₃,ZrO:ZrO₂,YO:Y₂O₂

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