Surface Finishing Tutorial
#332 Ceramic Spraying - Plasma Spraying
Category : Thermal Spraying
February23, 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.
(1)Plasma thermal spraying films
[Table 1] shows the types and symbols of plasma thermal spraying films.
[Table 1] Types and symbols of plasma thermal spraying films
Type | Symbol | Main ingredients of the spraying materials | Intended use |
Alumina spraying |
Type
1 A |
P-WAO-1 | AL2O3 98%
or more | Abrasion
resistance |
Type
2 A |
P-WAO-2 | Chemical
resistance |
Type
3 A |
P-WAO-3 | Heat resistance
and insulation |
Type 1 B | P-GAO-1 | AL2O3 94% or more TiO2 1.5-4.0% | Abrasion
resistance |
Type 2 B | P-GAO-2 | Chemical
resistance |
Type 3 B | P-GAO-3 | Heat resistance
and insulation |
Alumina/titania spraying | Type 1 A | P-AO-TiO-13-1 | AL2O3 85% or more TiO2 12-14% | Abrasion
resistance |
Type 2 A | P-AO-TiO-13-2 | Chemical
resistance |
Type 1 B | P-AO-TiO-40-1 | AL2O3 58% or more TiO2 39-41% | Abrasion
resistance |
Type 2 B | P-AO-TiO-40-2 | Chemical
resistance |
Titania spraying | Type 1 A | P-TiO-1 | TiO2 98% | Abrasion
resistance |
Type 2 A | P-TiO-2 | Chemical
resistance |
Chromium oxide
spraying | Type 1 A | P-CrO-1 | Cr2O3 98% or more | Abrasion
resistance |
Type 2 A | P-CrO-2 | Chemical
resistance |
Type 1 B | P-CrO-TiO-3-1 | Cr2O3 89% or more TiO2 2-3% SiO2 4-5% | Abrasion
resistance |
Type 2 B | P-CrO-TiO-3-2 | Chemical
resistance |
Spinel spraying | Type 3 A | P-AO-MgO-29-3 | AL2O3 68% MgO 28-30% | Heat resistance
and insulation |
Zirconia spraying | Type 2 A | P-ZrO-2 | ZrO2 98% or more | Chemical
resistance |
Type 3 A | P-ZrO-3 | Heat resistance
and insulation |
Type 2 B | P-ZrO-SiO-32-2 | ZrO2 64% or more SiO2 31-34% | Chemical
resistance |
Type 3 B |
P-ZrO-SiO-32-3 | Heat resistance
and insulation |
Type 2 C | P-ZrO-CaO-7-2 | ZrO2 90% or more CaO 6-8% | Chemical
resistance |
Type 3 C | P-ZrO-CaO-7-3 | Heat resistance
and insulation |
Type 2 D | P-ZrO-MgO-24-2 | ZrO2 73% or more MgO 23-25% | Chemical
resistance |
Type 3 D | P-ZrO-MgO-24-3 | Heat resistance
and insulation |
Type 2 E | P-ZrO-YO-8-2 | ZrO2 89% or more Y2O3 7-9% | Chemical
resistance |
Type 3 E | P-ZrO-YO-8-3 | Heat resistance
and insulation |
Type 2 F | P-ZrO-YO-12-2 | ZrO2 85% or more Y2O3 11-13% | Chemical
resistance |
Type 3 F | P-ZrO-YO-12-3 | Heat resistance
and insulation |
|
* |
Note) AL: Aluminum, Cr: Chromium, Ca: Calcium, Zr: Zirconium, Ti: Titanium, Si: Silicon, Mg: Magnesium, Y: Yttrium |