ATZ Ce-ATZ
Grade
Ce-ATZ = ce-TZP matrix with ~20–30 % Al2O3
Choose ceria-stabilised Ce-TZP with 20–30 % Al2O3 when very high toughness and near-immunity to hydrothermal ageing govern, as in dental and load-bearing implants; hardness and strength sit below Y-type.
Values for the Ce-ATZ condition
Other ATZ tempers and conditions
ATZ is listed in 4 conditions; see the grade overview at ATZ.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Ce-ATZThis page Ce-TZP matrix with ~20–30 % Al2O3 | Choose ceria-stabilised Ce-TZP with 20–30 % Al2O3 when very high toughness and near-immunity to hydrothermal ageing govern, as in dental and load-bearing implants; hardness and strength sit below Y-type. | — | 350 | 0 | 1,150 HV | 4 W/m·K |
3Y-TZP matrix with ~10 wt% Al2O3 | Pick the ~10 wt% Al2O3 version when fracture toughness close to pure Y-TZP matters most and only a moderate gain in hydrothermal ageing resistance is needed; stiffness drops to 225 GPa. | — | 380 | 0 | 1,330 HV | 3 W/m·K |
ATZ-20Default 3Y-TZP matrix with 20 wt% Al2O3, pressureless sintered | Use the pressureless-sintered 3Y-TZP with 20 wt% Al2O3 as the general-purpose balance of strength, toughness, hardness, wear and ageing resistance for pump and valve parts, guides, dental and structural components. | — | — | — | 1,400 HV | 4 W/m·K |
Hot isostatically pressed medical/high-strength grade | Specify the hot isostatically pressed, near-full-density fine-grain form for the highest flexural strength — femoral heads, dental abutments, ISO 6474-2 class parts — accepting harder machining. | — | — | — | 1,450 HV | — |
What is ATZ Ce-ATZ?
ATZ Ce-ATZ is ATZ in the Ce-ATZ grade — choose ceria-stabilised Ce-TZP with 20–30 % Al2O3 when very high toughness and near-immunity to hydrothermal ageing govern, as in dental and load-bearing implants; hardness and strength sit below Y-type. ATZ Ce-ATZ has a tensile strength of 350 MPa (50.8 ksi), stronger than 71% of ceramic grades. Elongation at break is 0% and the elastic modulus is 245 GPa (35.5 Msi). ATZ Ce-ATZ has a density of 5.6 g/cm³ (0.202 lb/in³), heavier than 56% of ceramic grades. It melts at 1,890°C (3,434 °F). ATZ-20 is the default condition FabDigit quotes; Ce-ATZ is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 96/100, better than 99% of ceramic grades
- Tough — resists crack growth — 15 MPa·√m (13.7 ksi·√in), better than 98% of ceramic grades
- Good corrosion resistance — 95/100, better than 97% of ceramic grades
ATZ Ce-ATZ properties
Typical room-temperature values for ATZ Ce-ATZ; 15 are specific to this condition. Other listed values are ATZ reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical4
ATZ Ce-ATZ has a density of 5.6 g/cm³ (0.202 lb/in³), heavier than 56% of ceramic grades. It melts at 1,890°C (3,434 °F).
Mechanical13
ATZ Ce-ATZ has a tensile strength of 350 MPa (50.8 ksi), stronger than 71% of ceramic grades. Elongation at break is 0% and the elastic modulus is 245 GPa (35.5 Msi).
Thermal5
ATZ Ce-ATZ is rated for continuous service to 900°C (1,652 °F). It conducts heat at 3.5 W/m·K (2.02 BTU/hr·ft·°F), worse than 74% of ceramic grades. Thermal expansion is 9.8 µm/m·K (5.44 µin/in·°F).
Electrical5
ATZ Ce-ATZ is an electrical insulator with a dielectric strength of 17 kV/mm (431.8 V/mil) and a resistivity of 1×10⁹ Ω·m.
Chemical & Environmental2
Corrosion resistance is excellent (95/100), better than 97% of ceramic grades.
Sustainability4
Producing a kilogram of ATZ Ce-ATZ takes about 95 MJ of energy and emits 6.5 kg of CO₂ — less than 57% of ceramic grades. Typical recycled content is 0%.
Manufacturability3
ATZ Ce-ATZ's machinability is not recommended (5/100, worse than 59% of ceramic grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ATZ Ce-ATZ
Is ATZ easy to machine?
Turn, mill and drill the green (white) body with carbide tooling, allowing 5–25 % sintering shrinkage. After sintering, use diamond wheel grinding, lapping, or laser and ultrasonic machining only.
Can ATZ be welded?
Not weldable; join to metals by active-metal brazing (Ti or Ag-Cu-Ti), glass solder, or mechanical interference and adhesive assembly.
Can ATZ be formed, bent or molded?
Dry or isostatic pressing followed by green machining, ceramic injection moulding (CIM) or tape casting. Pressureless sinter at 1420–1600 °C; medical parts are then HIPed at 1400–1500 °C and 150 MPa.
What surface finishes work on ATZ?
Diamond lapping and polishing give a mirror finish below Ra 0.02 µm; matte surfaces can be produced by bead blasting and parts can be laser marked. No plating is required, and a mild anneal after grinding relieves residual transformation stress.
ATZ chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Al2O3Submicron dispersed phase; about 10% in ATZ-10 grade | 15 – 25 | 20 |
| Y2O33 mol% stabilizer (Ce-ATZ uses 10-12 mol% CeO2 instead) | 4.5 – 5.6 | 5.2 |
| HfO2From zircon ore; counted with ZrO2 | 1 – 2.5 | 1.8 |
| SiO2+Na2O+Fe2O3total impurities | 0 – 0.5 | 0.2 |
| ZrO2balance, includes HfO2 | balance | — |
ATZ Ce-ATZ — frequently asked
What is ATZ Ce-ATZ used for?
ATZ Ce-ATZ is typically used for surgical instruments, dental abutments, bearing balls, high-wear seals and cutting components. In short: zirconia toughness, alumina hardness; best hydrothermal aging resistance; medical-grade wear ceramic.
What is the tensile strength of ATZ Ce-ATZ?
ATZ Ce-ATZ has a typical tensile strength of 350 MPa (50.8 ksi) — stronger than 71% of ceramic grades. Strength varies by condition: see the 4 listed tempers.
Is ATZ Ce-ATZ easy to machine?
Not especially — machinability is rated not recommended (5/100, worse than 59% of ceramic grades). Turn, mill and drill the green (white) body with carbide tooling, allowing 5–25 % sintering shrinkage. After sintering, use diamond wheel grinding, lapping, or laser and ultrasonic machining only.
Can ATZ Ce-ATZ be welded?
Not weldable; join to metals by active-metal brazing (Ti or Ag-Cu-Ti), glass solder, or mechanical interference and adhesive assembly.
What surface finishes work on ATZ Ce-ATZ?
Diamond lapping and polishing give a mirror finish below Ra 0.02 µm; matte surfaces can be produced by bead blasting and parts can be laser marked. No plating is required, and a mild anneal after grinding relieves residual transformation stress.
Can ATZ Ce-ATZ be formed, bent or molded?
Dry or isostatic pressing followed by green machining, ceramic injection moulding (CIM) or tape casting. Pressureless sinter at 1420–1600 °C; medical parts are then HIPed at 1400–1500 °C and 150 MPa.
What is the maximum service temperature of ATZ Ce-ATZ?
ATZ Ce-ATZ is rated for continuous use to about 900°C (1,652 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- ISO 6474-2 Implants for surgery — Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP) with alumina — ISO (2019)
- ISO 13356 Implants for surgery — Ceramic materials based on Y-TZP — ISO (2015)
- ASM Engineered Materials Handbook Vol.4 — Ceramics and Glasses — ASM International (1991)
- Zirconia and ATZ/ZTA technical ceramic datasheets — CoorsTek / Kyocera / Metoxit / CeramTec (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.