Ceramic Spray Materials Chart
|
| Material |
Hardness Rn15 |
Ground Finish Ra |
Working Temp. |
Characteristics & Applications |
| Aluminum Oxide/Alumina |
85-88 |
6 to 10 |
Above 1500°F |
- Best ceramic material for electrical insulation
- Very hard & dense
- Excellent thermal insulator
|
| Alumina Titania 97/3 |
88-91 |
6 to 10 |
Above 1500°F |
- Very high thermal shock resistance
- Excellent wear resistance
- Non wetting with molten metals
|
| Alumina Titania 87/13 |
90-94 |
12 to 14 |
Under 1000°F |
- Low friction bearing surfaces
- Excellent abrasion resistance
- Excellent erosion resistance
|
| Calcia Stabilized Zirconia |
74-76 |
10 to 15 |
Above 1500°F |
- Outstanding thermal barrier
- High thermal shock resistance
- High temperature erosion protection
|
| Yttria Stabilized Zirconia |
75-78 |
15 to 20 |
Up to 1650°F |
- High temperature thermal barrier
|
| Chrome Oxide/Chromia |
92-95 |
1 to 3 lapped |
Above 1500°F |
- Cavitation resistant
- Mechanical wear resistant
- Abrasion resistant
- Corrosion resistant
- Low coefficient of friction
|
| Magnesium Zicronate |
70-74 |
65 to 70 |
Above 1500°F |
- Outstanding thermal barrier
- Excellent erosion resistance
- Best ceramic material for thermal shock resistance
- Non wetting with molten metals
|
| Spinel/Magnesia Alumina |
85-88 |
8 to 12 |
Up to 1500°F |
- Good dielectric insulator
- Better thermal shock protection than pure alumina
|
| Titanium Dioxide/Titania |
81-83 |
8 to 10 |
Under 1000°F |
- Low porosity
- Very hard & dense
- Excellent corrosion resistance
|
| Yttrium Oxide/Yttria |
N/A |
N/A |
Above 1500°F |
- High temperature corrosion resistance
|
