TiO2 Ceramic 99
Grade · default condition
99 = 99 % TiO₂
Pick for high-K insulators, capacitor bodies and dielectric parts where low loss and high insulation resistance matter.
Values for the 99 condition
Other TiO2 Ceramic tempers and conditions
TiO2 Ceramic is listed in 4 conditions; see the grade overview at TiO2 Ceramic.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Anatase photocatalytic / pigment-grade TiO₂ powder | Use as raw powder for photocatalytic coatings, pigment, or as feedstock/dopant for dielectric ceramic formulations — not a structural body. | — | — | — | 620 HV | 0.5 W/m·K |
95 % TiO₂ | Economical general-purpose titania body for spacers, bushings and Class I capacitor blanks where a few percent of clay/silicate additives is acceptable. | — | — | — | 800 HV | 5 W/m·K |
Reduced (sub-stoichiometric) titania | Choose when electrical conduction is wanted — electrodes, corrosion-resistant anodes, antistatic and heater components — not as an insulator. | — | — | — | 850 HV | 5 W/m·K |
99DefaultThis page 99 % TiO₂ | Pick for high-K insulators, capacitor bodies and dielectric parts where low loss and high insulation resistance matter. | — | — | — | 950 HV | 7 W/m·K |
What is TiO2 Ceramic 99?
TiO2 Ceramic 99 is TiO2 Ceramic in the 99 grade — pick for high-K insulators, capacitor bodies and dielectric parts where low loss and high insulation resistance matter. TiO2 Ceramic 99 has a tensile strength of 80 MPa (11.6 ksi), weaker than 53% of ceramic grades. The elastic modulus is 250 GPa (36.3 Msi). TiO2 Ceramic 99 has a density of 4.15 g/cm³ (0.15 lb/in³), lighter than 57% of ceramic grades. It melts at 1,843°C (3,349 °F).
Advantages
- Good corrosion resistance — 90/100, better than 81% of ceramic grades
TiO2 Ceramic 99 properties
Typical room-temperature values for TiO2 Ceramic 99; 14 are specific to this condition. Other listed values are TiO2 Ceramic reference data and may not represent this condition. Bars are the position among ceramic grades.
Physical4
TiO2 Ceramic 99 has a density of 4.15 g/cm³ (0.15 lb/in³), lighter than 57% of ceramic grades. It melts at 1,843°C (3,349 °F).
Mechanical11
TiO2 Ceramic 99 has a tensile strength of 80 MPa (11.6 ksi), weaker than 53% of ceramic grades. The elastic modulus is 250 GPa (36.3 Msi).
Thermal5
TiO2 Ceramic 99 is rated for continuous service to 1,100°C (2,012 °F). It conducts heat at 7 W/m·K (4.04 BTU/hr·ft·°F), worse than 61% of ceramic grades. Thermal expansion is 8 µm/m·K (4.44 µin/in·°F).
Electrical5
TiO2 Ceramic 99 is an electrical insulator with a dielectric strength of 10 kV/mm (254 V/mil) and a resistivity of 1×10¹¹ Ω·m.
Chemical & Environmental2
Corrosion resistance is excellent (90/100), better than 81% of ceramic grades.
Sustainability4
Producing a kilogram of TiO2 Ceramic 99 takes about 80 MJ of energy and emits 6 kg of CO₂ — less than 67% of ceramic grades. Typical recycled content is 0%.
Manufacturability3
TiO2 Ceramic 99's machinability is not recommended (5/100, worse than 59% of ceramic grades).
Common Calculations4
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with TiO2 Ceramic 99
Is TiO2 Ceramic easy to machine?
Green/bisque machining is the economical route; fired titania needs diamond grinding, EDM is impossible for the insulating grades (possible on reduced conductive TiOx).
Can TiO2 Ceramic be welded?
Not weldable — joined by glass frit, active-brazing (Ti/Ag-Cu ABA) or ceramic adhesive; metallise with Mo-Mn+Ni for hermetic seals.
Can TiO2 Ceramic be formed, bent or molded?
Dry pressing, isostatic pressing, extrusion or tape casting of doctor-bladed slurry; sinter 1250–1500 °C in air with slow cooling to keep stoichiometry.
What surface finishes work on TiO2 Ceramic?
Lap and diamond-polish for flatness/optical work; avoid reducing furnace atmospheres or firing on carbon setters, which blacken the surface and kill insulation resistance.
TiO2 Ceramic 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 |
|---|---|---|
| SiO2sintering aid / glassy phase in 95 % grades | 0 – 2.5 | 0.3 |
| Al2O3sintering aid | 0 – 1.5 | 0.2 |
| MgO+CaOgrain-growth / dielectric modifiers | 0 – 1.5 | 0.2 |
| ZrO2, Nb2O5 or Bi2O3 dopantsused to tune TCC and insulation resistance in capacitor bodies | 0 – 2 | 0.1 |
| Fe2O3impurity; raises dielectric loss | 0 – 0.1 | 0.02 |
| TiO2rutile after firing | ≥ 94 (balance) | — |
TiO2 Ceramic 99 — frequently asked
What is TiO2 Ceramic 99 used for?
TiO2 Ceramic 99 is typically used for ceramic capacitors, dielectric resonators, thermistors and photocatalytic coatings. In short: high dielectric constant oxide; photocatalytic anatase grade available; low thermal conductivity ceramic.
What is the tensile strength of TiO2 Ceramic 99?
TiO2 Ceramic 99 has a typical tensile strength of 80 MPa (11.6 ksi) — weaker than 53% of ceramic grades. Strength varies by condition: see the 4 listed tempers.
Is TiO2 Ceramic 99 easy to machine?
Not especially — machinability is rated not recommended (5/100, worse than 59% of ceramic grades). Green/bisque machining is the economical route; fired titania needs diamond grinding, EDM is impossible for the insulating grades (possible on reduced conductive TiOx).
Can TiO2 Ceramic 99 be welded?
Not weldable — joined by glass frit, active-brazing (Ti/Ag-Cu ABA) or ceramic adhesive; metallise with Mo-Mn+Ni for hermetic seals.
What surface finishes work on TiO2 Ceramic 99?
Lap and diamond-polish for flatness/optical work; avoid reducing furnace atmospheres or firing on carbon setters, which blacken the surface and kill insulation resistance.
Can TiO2 Ceramic 99 be formed, bent or molded?
Dry pressing, isostatic pressing, extrusion or tape casting of doctor-bladed slurry; sinter 1250–1500 °C in air with slow cooling to keep stoichiometry.
What is the maximum service temperature of TiO2 Ceramic 99?
TiO2 Ceramic 99 is rated for continuous use to about 1,100°C (2,012 °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)
- CRC Handbook of Chemistry and Physics (rutile/anatase physical data) — CRC Press (2022)
- Technical ceramics — titanium dioxide (titania) component datasheets — CoorsTek / Ceramtec / technical ceramics (2023)
- MatWeb / Granta CES oxide-ceramic property records — MatWeb, Ansys Granta (2024)
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.