Mg-PSZ TS
Heat-treated state
TS = thermal-shock / maximum-toughness grade
Choose the over-aged thermal-shock grade for molten-metal contact and cyclic heating — pouring cups, feed tubes, hot-extrusion dies — where 2.5 W/m·K conductivity and toughness outweigh hardness.
Values for the TS condition
What is Mg-PSZ TS?
Mg-PSZ TS is Mg-PSZ heat treated to TS — choose the over-aged thermal-shock grade for molten-metal contact and cyclic heating — pouring cups, feed tubes, hot-extrusion dies — where 2.5 W/m·K conductivity and toughness outweigh hardness. Mg-PSZ TS has a tensile strength of 350 MPa (50.8 ksi), stronger than 71% of ceramic grades. The elastic modulus is 200 GPa (29 Msi). Mg-PSZ TS has a density of 5.75 g/cm³ (0.208 lb/in³), heavier than 60% of ceramic grades. It melts at 2,700°C (4,892 °F).
Advantages
- Tough — resists crack growth — 13 MPa·√m (11.8 ksi·√in), better than 94% of ceramic grades
- Good corrosion resistance — 92/100, better than 88% of ceramic grades
Limitations
- Poor heat conductor — 2.5 W/m·K (1.44 BTU/hr·ft·°F), worse than 83% of ceramic grades
Mg-PSZ TS properties
Typical room-temperature values for Mg-PSZ TS; 8 are specific to this condition. Other listed values are Mg-PSZ reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical5
Mg-PSZ TS has a density of 5.75 g/cm³ (0.208 lb/in³), heavier than 60% of ceramic grades. It melts at 2,700°C (4,892 °F).
Mechanical12
Mg-PSZ TS has a tensile strength of 350 MPa (50.8 ksi), stronger than 71% of ceramic grades. The elastic modulus is 200 GPa (29 Msi).
Thermal5
Mg-PSZ TS is rated for continuous service to 1,200°C (2,192 °F). It conducts heat at 2.5 W/m·K (1.44 BTU/hr·ft·°F), worse than 83% of ceramic grades. Thermal expansion is 10.2 µm/m·K (5.67 µin/in·°F).
Electrical5
Mg-PSZ TS is an electrical insulator with a dielectric strength of 10 kV/mm (254 V/mil) and a resistivity of 1×10⁸ Ω·m.
Chemical & Environmental2
Corrosion resistance is excellent (92/100), better than 88% of ceramic grades.
Sustainability4
Producing a kilogram of Mg-PSZ TS takes about 120 MJ of energy and emits 8.5 kg of CO₂ — more than 51% of ceramic grades. Typical recycled content is 0%.
Manufacturability3
Mg-PSZ TS's machinability is not recommended (6/100, better than 61% of ceramic grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Mg-PSZ TS
Is Mg-PSZ easy to machine?
Machine the green (white) body by turning and milling with carbide tooling and allow 20–25 % sintering shrinkage. After sintering only diamond grinding and lapping are possible; grind wet at low feed to avoid a transformed surface layer and microcracking.
Can Mg-PSZ be welded?
Not weldable; join to metals by press or shrink fit, active-metal brazing (Ti-Ag-Cu) or ceramic adhesive.
Can Mg-PSZ be formed, bent or molded?
Formed by dry or isostatic pressing, slip casting or ceramic injection moulding. Sinter at 1600–1800 °C in the cubic phase field, then age at about 1100 °C in the sub-eutectoid range to precipitate the tetragonal phase that provides toughness.
What surface finishes work on Mg-PSZ?
Diamond lapping and polishing reach Ra 0.05–0.2 µm; the coarse grain size keeps the attainable finish below that of Y-TZP. A post-grinding anneal at 800–1000 °C removes residual surface transformation stress.
Mg-PSZ 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 |
|---|---|---|
| MgOapprox. 8-10 mol% MgO stabilizer | 2.5 – 3.6 | 3 |
| HfO2Natural companion of zircon ore; usually counted within ZrO2 | 1 – 2.5 | 1.8 |
| SiO2impurity / sintering aid | 0 – 0.6 | 0.3 |
| Al2O3impurity / grain-boundary phase | 0 – 0.5 | 0.2 |
| ZrO2matrix (includes HfO2) | balance | — |
Mg-PSZ TS — frequently asked
What is Mg-PSZ TS used for?
Mg-PSZ TS is typically used for extrusion dies, wire drawing guides, molten metal handling components, pump seals and grinding media. In short: high-toughness coarse-grain zirconia; best thermal-shock zirconia; molten-metal contact grade.
What is the tensile strength of Mg-PSZ TS?
Mg-PSZ TS has a typical tensile strength of 350 MPa (50.8 ksi) — stronger than 71% of ceramic grades.
Is Mg-PSZ TS easy to machine?
Not especially — machinability is rated not recommended (6/100, better than 61% of ceramic grades). Machine the green (white) body by turning and milling with carbide tooling and allow 20–25 % sintering shrinkage. After sintering only diamond grinding and lapping are possible; grind wet at low feed to avoid a transformed surface layer and microcracking.
Can Mg-PSZ TS be welded?
Not weldable; join to metals by press or shrink fit, active-metal brazing (Ti-Ag-Cu) or ceramic adhesive.
What surface finishes work on Mg-PSZ TS?
Diamond lapping and polishing reach Ra 0.05–0.2 µm; the coarse grain size keeps the attainable finish below that of Y-TZP. A post-grinding anneal at 800–1000 °C removes residual surface transformation stress.
Can Mg-PSZ TS be formed, bent or molded?
Formed by dry or isostatic pressing, slip casting or ceramic injection moulding. Sinter at 1600–1800 °C in the cubic phase field, then age at about 1100 °C in the sub-eutectoid range to precipitate the tetragonal phase that provides toughness.
What is the maximum service temperature of Mg-PSZ TS?
Mg-PSZ TS is rated for continuous use to about 1,200°C (2,192 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- ASM Engineered Materials Handbook Vol.4: Ceramics and Glasses — ASM International (1991)
- Nilcra Mg-PSZ (MS / TS grades) technical data — Morgan Advanced Materials (2020)
- Zirconia (ZrO2) material properties — CoorsTek (2022)
- Transformation Toughening of Ceramics (Mg-PSZ ageing behaviour) — CRC / J. Am. Ceram. Soc. review data (1989)
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.