‌Oxides And Ceramics‌

Oxide ceramics rarely make headlines, yet they quietly carry the energy transition on their shoulders. An yttria-stabilized zirconia membrane a few hundred micrometers thick is what turns a solid oxide fuel cell into the most efficient way to convert fuel to electricity; an invisible ITO coating is what makes a touch screen or a thin-film solar module conduct; and a β-Ga₂O₃ wafer is what power engineers now bet on to outrun silicon carbide.

Eata Energy covers this family end to end: high-purity oxide powders from 3N to 5N, sputtering targets for transparent and functional coatings, single crystals and wafers, structural ceramic substrates, and the laboratory ceramic accessories that high-temperature work consumes daily. Each product line below ships with batch-specific chemical analysis.

Alumina and zirconia ceramic substrates supplied by Eata Energy

What Are Oxide Ceramics?

Oxide ceramics are inorganic compounds in which metals or metalloids are bound to oxygen — a definition broad enough to include the hardest structural materials and the most sophisticated functional ones. Strong ionic bonding gives them their shared signature: high melting points, exceptional hardness, chemical inertness and electrical insulation. But adjust the composition and the same family flips personality entirely. Doped zirconia conducts oxygen ions fast enough to run a fuel cell; tin-doped indium oxide is simultaneously transparent and metallic; gallium oxide blocks kilovolts with a 4.9 eV band gap. That breadth is exactly why one well-chosen oxide can replace a whole subsystem.

Why Engineers Choose Oxide Ceramics

• Ionic conduction at high temperature — 8YSZ carries oxygen ions so efficiently that it remains the standard SOFC electrolyte at 800–1000 °C, where cells exceed 70% efficiency; the same material serves oxygen sensors and thermal barrier coatings on turbines running above 1200 °C.
• Transparency plus conductivity — commercial ITO (90/10 In₂O₃:SnO₂) achieves sheet resistance below 10 Ω/sq with visible transmittance above 83–90% and resistivity near 10⁻⁴ Ω·cm, the combination behind flat panels, touch screens and thin-film photovoltaics.
• Ultra-wide bandgap power handling — β-Ga₂O₃ pairs a 4.8–4.9 eV band gap with an 8 MV/cm theoretical breakdown field and a Baliga figure of merit around 3300, three to ten times beyond SiC and GaN — and unlike both, its substrates grow from the melt.
• Room-temperature UV emission — ZnO couples a 3.37 eV direct gap with a 60 meV exciton binding energy (nearly triple GaN's), enabling excitonic UV devices at room temperature, while sintered ZnO ceramics protect power grids as varistors.
• Built-in photocatalysis — TiO₂ in its anatase form (3.2 eV) mineralizes organics and splits water under UV, the basis of self-cleaning surfaces, air and water purification, and dye-sensitized solar cell photoanodes.
• Mechanical and thermal reliability — alumina ceramics (96–99.6%) offer 22–32 W/m·K thermal conductivity, dielectric strength above 10 kV/mm and continuous service to 1500–1700 °C; fused silica adds near-zero thermal expansion and UV clarity.
• A tunable perovskite toolbox — LSCF and BSCF mixed-conducting cathodes have driven IT-SOFC power densities past 1 W/cm² at 700 °C, while garnet LLZO conducts lithium ions at 10⁻⁴–10⁻³ S/cm as a solid-state battery electrolyte.

Product Categories We Supply

Values are typical for standard grades; composition-specific data sheets are available on request.

Available Forms

• Powders — nano to sub-micron and spray-dried spherical grades, 3N–5N purity, phase-controlled (anatase/rutile, cubic/tetragonal)
• Sputtering targets — ITO, AZO, YSZ, TiO₂, Ga₂O₃ and perovskite compositions, planar and rotary, bonded to backing plates
• Single crystals and wafers — sapphire, β-Ga₂O₃ (EFG/Czochralski-grown), ZnO and quartz, oriented and polished
• Ceramic substrates — 96%, 99.5% and 99.6% alumina, as-fired, lapped or polished, standard and custom dimensions
• Ceramic accessories — crucibles, tubes, boats, plates, lids and setters in alumina, zirconia and fused quartz
• Grinding media — YSZ and alumina balls and cylinders in graded sizes for contamination-free milling

Applications of Oxides And Ceramics

Solid Oxide Fuel Cells and Electrolysis

The SOFC is essentially a ceramic machine: a dense 8YSZ electrolyte membrane conducts O²⁻ ions at 800–1000 °C, a Ni-YSZ cermet handles the fuel side, and perovskite cathodes such as LSCF or BSCF reduce oxygen on the air side. The payoff is electrical efficiency beyond 70% and fuel flexibility from hydrogen to ammonia, with stack lifetimes measured in thousands of hours. Mixed-conducting perovskite cathodes have pushed single-cell power density past 1 W/cm² at 700 °C, and the same material set reversed runs as a solid oxide electrolyzer producing green hydrogen. Every layer — electrolyte, electrodes, interconnect coatings — starts as the powders and targets in this catalog.

Planar solid oxide fuel cell components built on YSZ electrolyte ceramics

Transparent Electronics and Photovoltaics

Modern optoelectronics needs electrodes that light can pass through, and ITO remains the benchmark: below 10 Ω/sq sheet resistance at more than 83% visible transmittance, deposited from 90/10 In₂O₃:SnO₂ targets onto glass and polymer. It patterns the pixels of LCDs and OLEDs, senses fingers in touch panels, and collects current in thin-film and dye-sensitized solar cells. Where indium cost or flexibility matters, aluminum- and gallium-doped zinc oxide (AZO, GZO) offer a direct substitute, and ZnO-based multilayers now match ITO performance in flexible OLED architectures.

ITO-coated glass — the standard transparent electrode for displays and solar cells

Next-Generation Power Electronics

β-Ga₂O₃ has moved from curiosity to roadmap: with a 4.8–4.9 eV band gap, an 8 MV/cm critical field and a Baliga figure of merit around 3300 — three to ten times SiC and GaN — it promises kilovolt-class Schottky diodes and MOSFETs with dramatically lower conduction loss. Crucially, single-crystal substrates grow from the melt by Czochralski and EFG methods, a cost advantage neither SiC nor GaN can match, and devices beyond 1 kV breakdown are already demonstrated. The same deep-UV transparency makes Ga₂O₃ the leading material for solar-blind photodetectors. Thermal management remains the community's active engineering challenge.

Melt-grown β-Ga₂O₃ wafer for ultra-wide-bandgap power devices

High-Temperature Engineering and Wear

When metals soften or creep, oxides keep working. YSZ thermal barrier coatings insulate turbine blades above 1200 °C in every modern jet engine; partially stabilized zirconia delivers fracture toughness no other oxide approaches, making it the material for grinding media, seals and precision structural parts. Alumina covers the broader industrial base — 96% grade for wear liners, seals and insulators, 99.5–99.6% for electronic substrates and semiconductor chamber components — with hardness near 2000 HV and service temperatures to 1700 °C. Fused quartz complements them where thermal shock and UV transmission dominate.

Yttria-stabilized zirconia grinding media for contamination-free milling

Solid-State Batteries

Garnet-type Li₇La₃Zr₂O₁₂ has become the most studied oxide solid electrolyte for a reason: the cubic phase conducts lithium ions at 10⁻⁴–10⁻³ S/cm, remains stable directly against lithium metal, and is processed in ordinary air. Al-, Ga- and Ta-doped variants lock in the cubic structure and push conductivity toward 10⁻³ S/cm, with activation energies near 0.3 eV. LLZO pellets and powders now anchor all-solid-state and quasi-solid-state cell prototypes worldwide, and zirconia crucibles from the same product family are the standard vessel for sintering them.

Laboratory and Process Accessories

High-temperature research consumes ceramics daily, and purity here is as critical as in the materials being processed. Eata Energy supplies dense alumina crucibles, tubes, boats and setter plates rated for 1600–1700 °C, yttria- and magnesia-stabilized zirconia ware for reactive melts, and fused quartz crucibles — including the grades used to pull Czochralski silicon. Matching lids, custom bores and machined features are part of the standard offering, so a furnace can be loaded without improvisation.

High-purity ceramic crucibles, tubes and lids for high-temperature processing

Why Source Oxides and Ceramics from Eata Energy

In oxide ceramics, performance lives in the details: 0.5 mol% of yttria separates a tough ceramic from a crumbly one, and a trace of silica can destroy an LLZO electrolyte. Eata Energy controls composition and phase at the powder stage, verifies every lot by XRD and ICP analysis, and keeps the accessory ware to the same purity discipline as the functional materials — one accountable source for the whole bill of materials.

• Phase-verified powders — anatase vs rutile, cubic vs tetragonal, β-phase Ga₂O₃ — confirmed by XRD per batch
• Purity from 3N to 5N with full impurity breakdown on the certificate
• Particle engineering from nanometric dispersions to spray-dried, free-flowing granules
• Materials and consumables supplied together, from target to crucible, with consistent lot traceability

Custom Oxide and Ceramic Services

Standard grades solve most problems; the rest we make to order. We adjust yttria content in YSZ, In₂O₃:SnO₂ ratios in ITO, Al/Ga/Ta doping in LLZO and strontium levels in LSCF; we produce doped variants, mixed phases and non-standard stoichiometries on request. Target fabrication and bonding, custom substrate dimensions, and machining of crucibles, tubes and plates to drawing are routine work for our ceramics team. Share your specification — we answer with a technical proposal, not a generic datasheet.

For Research or Industrial Raw Materials, Not For Personal Medical Use!