Introduction ZTA ceramic crucible
ZTA ceramic crucible or we called Thermansys Zirconia Toughened Alumina (ZTA) crucibles are essentially much similar product with our Alumina crucibles. The differences lie to the addition of a specific blend of Zirconia Silicate to the main Alumina matrix before sintering.
The main advantages are additional strength and toughness over Alumina for temperatures below 1500 C. It can improve thermal shock resistance. ZTA crucibles shows better surface finish than Alumina. ZTA crucibles are offered without significant additional cost compared to pure Alumina crucibles. The prices for ZTA crucibles are much lower.
Characteristics ZTA ceramic crucible
- 1600 C maximum working temperature
- Excellent chemical resistance to corrosion from chemicals
- Low porosity and fine surface finish enhance
- Prevents chemical attack
- Elevated mechanical strength and wear resistance up to 1500º C
- Very good thermal shock resistance behavior
- Consistent dimensional control
- Low cost
Technical Data Sheet of ZTA ceramic crucible
| ZTA Technical Data Sheet | |||
| Chemistry Content | ZrO2 | 20% | |
| Al2O3 | 80% | ||
| Substance Characteristic | Density | g/cm3 | 4.2 |
| Water Absorption | % | 0 | |
| Sinter Temperature | ℃ | 1650 | |
| Physical Characteristic | Hardness | HV(Gpa) | 1650 |
| Bending Strength | Mpa | 500-600 | |
| Compressive strength | Mpa | 2800 | |
| fracture toughness | Mpa.m3/2 | 9.8 | |
| modulus elasticity | Gpa | 310 | |
| Thermal Characteristic | Max Using Temperature | ℃ | 1500 |
| Coefficient of Thermal Expansion | /℃ | 8.2*10^6 | |
| Thermal Conductivity | W/m.k(25-300℃) | 9.8 | |
