CeO2 GDC10
Grade
GDC10 = 10 mol % Gd-doped ceria (Ce0.9Gd0.1O1.95) electrolyte grade
Choose for intermediate-temperature SOFC electrolytes/barrier layers where high oxygen-ion conductivity at 500–700 °C is required.
Values for the GDC10 condition
Other CeO2 tempers and conditions
CeO2 is listed in 4 conditions; see the grade overview at CeO2.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
99.9-SINTDefault 99.9 % CeO2 | Choose for dense structural/functional ceria parts: crucibles, sputtering targets, catalyst supports and oxygen-storage components. | — | — | — | 600 HV | 12 W/m·K |
Polishing powder grade | Choose for glass, panel, optics and wafer CMP polishing slurries where chemical-mechanical removal rate matters more than mechanical strength. | — | — | — | 600 HV | 11 W/m·K |
Nanopowder | Choose for catalysis, oxygen-storage washcoats, UV-blocking additives and fine CMP slurries needing very high specific surface area. | — | — | — | 650 HV | 6 W/m·K |
GDC10This page 10 mol % Gd-doped ceria (Ce0.9Gd0.1O1.95) electrolyte grade | Choose for intermediate-temperature SOFC electrolytes/barrier layers where high oxygen-ion conductivity at 500–700 °C is required. | — | — | — | 650 HV | 3 W/m·K |
What is CeO2 GDC10?
CeO2 GDC10 is CeO2 in the GDC10 grade — choose for intermediate-temperature SOFC electrolytes/barrier layers where high oxygen-ion conductivity at 500–700 °C is required. The elastic modulus is 190 GPa (27.6 Msi). CeO2 GDC10 has a density of 7.1 g/cm³ (0.257 lb/in³), heavier than 71% of ceramic grades. It melts at 2,400°C (4,352 °F). 99.9-SINT is the default condition FabDigit quotes; GDC10 is available on request or by drawing note.
Limitations
- Poor heat conductor — 3 W/m·K (1.73 BTU/hr·ft·°F), worse than 77% of ceramic grades
CeO2 GDC10 properties
Typical room-temperature values for CeO2 GDC10; 11 are specific to this condition. Other listed values are CeO2 reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical4
CeO2 GDC10 has a density of 7.1 g/cm³ (0.257 lb/in³), heavier than 71% of ceramic grades. It melts at 2,400°C (4,352 °F).
Mechanical10
The elastic modulus is 190 GPa (27.6 Msi).
Thermal5
CeO2 GDC10 is rated for continuous service to 800°C (1,472 °F). It conducts heat at 3 W/m·K (1.73 BTU/hr·ft·°F), worse than 77% of ceramic grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
CeO2 GDC10 has an electrical resistivity of 100,000 Ω·m.
Chemical & Environmental2
Corrosion resistance is very good (80/100), better than 56% of ceramic grades.
Sustainability4
Producing a kilogram of CeO2 GDC10 takes about 220 MJ of energy and emits 16 kg of CO₂ — more than 64% of ceramic grades. Typical recycled content is 5%.
Manufacturability3
CeO2 GDC10's machinability is not recommended (8/100, better than 69% of ceramic grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with CeO2 GDC10
Is CeO2 easy to machine?
Machine green or bisque-fired bodies with carbide tooling; after sintering only diamond grinding/lapping is practical and chipping at edges is common due to low toughness.
Can CeO2 be welded?
Not weldable — join by ceramic–metal brazing (Ag-Cu-Ti active braze) or glass sealing; CTE ~10–12 µm/m·K matches many ferritic stainless steels.
Can CeO2 be formed, bent or molded?
Uniaxial or isostatic pressing, tape casting and screen printing of submicron powder, then pressureless sintering at 1400–1650 °C; keep the firing atmosphere oxidising to avoid CeO2-x expansion cracking.
What surface finishes work on CeO2?
Lapped and diamond-polished to optical/sputter-target flatness; the powder itself is the standard chemical-mechanical polishing medium for silica glass and wafers.
CeO2 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 |
|---|---|---|
| Cestoichiometric CeO2, Ce as Ce(IV) | 80.5 – 81.5 | 81.41 |
| other rare earth oxides (La, Pr, Nd)typical residual in 99.5–99.9 % technical grades | 0 – 0.5 | 0.1 |
| Fe2O3 + SiO2 + CaOnon-rare-earth impurities | 0 – 0.1 | 0.03 |
| Osub-stoichiometric CeO2-x forms in reducing atmospheres | balance | — |
CeO2 GDC10 — frequently asked
What is CeO2 GDC10 used for?
CeO2 GDC10 is typically used for glass/wafer CMP polishing, solid oxide fuel cell components, catalytic supports and UV-blocking coatings. In short: standard glass-polishing oxide; oxygen-storage functional ceramic; doped GDC10 for SOFC.
Is CeO2 GDC10 easy to machine?
Not especially — machinability is rated not recommended (8/100, better than 69% of ceramic grades). Machine green or bisque-fired bodies with carbide tooling; after sintering only diamond grinding/lapping is practical and chipping at edges is common due to low toughness.
Can CeO2 GDC10 be welded?
Not weldable — join by ceramic–metal brazing (Ag-Cu-Ti active braze) or glass sealing; CTE ~10–12 µm/m·K matches many ferritic stainless steels.
What surface finishes work on CeO2 GDC10?
Lapped and diamond-polished to optical/sputter-target flatness; the powder itself is the standard chemical-mechanical polishing medium for silica glass and wafers.
Can CeO2 GDC10 be formed, bent or molded?
Uniaxial or isostatic pressing, tape casting and screen printing of submicron powder, then pressureless sintering at 1400–1650 °C; keep the firing atmosphere oxidising to avoid CeO2-x expansion cracking.
What is the maximum service temperature of CeO2 GDC10?
CeO2 GDC10 is rated for continuous use to about 800°C (1,472 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Engineered Materials Handbook Vol. 4: Ceramics and Glasses — ASM International (1991)
- NIST-JANAF Thermochemical Tables — CeO2 — NIST (1998)
- Cerium oxide polishing and catalyst grades — technical data — Solvay / Treibacher Industrie AG (2022)
- GDC10 / CGO electrolyte powder and tape specifications — fuelcellmaterials (Nexceris) (2021)
- Handbook on the Physics and Chemistry of Rare Earths — ceria properties — Elsevier (2016)
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.