Shenzhen Xiangtong Co.,Ltd.
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Multilayer TT Zirconia Blanks
Characteristics:
Top High Transmittance
Natural Color Transition, Pre-colored.
Simple and Less Process of Production
Available in all classic VITA 16 shades (A1 to D4)
Indications
XTCERA TT Multilayer is intended for the fabrication and preparation of copings, full anatomical/ full
contour crowns, inlays and onlays restorations.
Note:Directing arrow is marked on the label of multilayer blanks, which points to insical surface.
Perfect Your Smile!
| Layer | Proportion |
Vickers Hardness(HV) |
Strength(MPa) | Color | Translucency |
| Layer 1 | 30% | ≥1250 | ≥750 |
Shallow
↓
Deep |
55% |
| Layer 2 | 15% | ||||
| Layer 3 | 15% | ||||
| Layer 4 | 20% | ||||
| Layer 5 | 20% |
| Sintering: | |||||||||
| ► Max Heating rate:10℃ per minute; | |||||||||
| ► Final temperature:1450℃; | |||||||||
| ► Holding time at final temperature:2 hours; | |||||||||
| ► Cooling should be done without temperature control in closed furnace; | |||||||||
| ► Never open the furnace before it has reached a temperature of less than 80℃ to avoid thermal shocks. |
Chemical Composition
| Component | Content |
| ZrO2+HfO2 | ＞90.5wt% |
| Y2O3 | 9.28wt% |
| AL2O3 | ＜0.5wt% |
| Other Oxides | ＜0.5wt% |
Properties
| Projects | Detection result |
| Sintering Density | ≥6.0g/cm³ |
| Bending Strength | ≥750MPa |
| Transmittance | 55% |
| Vickers Hardness | 1250HV |
| Sintering step | Temperature range (℃) | Time(h) |
| paragraph 1 | 20-900 | 1.5 |
| paragraph 2 | 900-900 | 0.5 |
| paragraph 3 | 900-1450 | 3.0 |
| paragraph 4 | 1450-1450 | 2.0 |
| paragraph 5 | 1450-800 | 1.0 |
| paragraph 6 | 800-Natural cooling 100 | Finished |