Strontium zirconate (SrZrO3) is a chemically robust, wide-bandgap perovskite oxide valued for its exceptional thermal stability, high electrical resistivity, and compatibility as a lattice-matched insulating buffer for oxide epitaxy. Supplied by Infinita Materials as a high-purity ceramic sputtering target, SrZrO3 enables direct, single-step deposition of dense, stoichiometric strontium zirconate thin films for high-temperature electronic, superconducting, and sensor applications. It is a preferred material where a chemically inert, refractory perovskite dielectric with low reactivity toward adjacent functional oxide layers is required.
Strontium Zirconate SrZrO₃ is a distorted orthorhombic perovskite (Pbnm) composed of corner-sharing ZrO₆ octahedra with Sr²⁺ occupying the A-sites. Its robust structure provides high thermal stability, chemical inertness, dimensional stability, and wide-bandgap insulating behaviour. Trivalent dopants such as Y³⁺ or Yb³⁺ can introduce high-temperature proton and oxide-ion conductivity, making SrZrO₃ valuable for electrolyte research. Direct RF sputtering from ceramic SrZrO₃ targets enables better control of film composition, crystallinity, and stoichiometry than separate Sr/Zr sources. Sputtered films are used as chemically stable buffer layers for epitaxial superconducting and ferroelectric oxides, dielectric and thermal-barrier layers, proton-conducting electrolyte hosts, and high-temperature electronic and sensor components.
Answer: SrZrO₃ offers high thermal stability, excellent dielectric properties, and chemical resistance, making it versatile for various industrial applications.
Answer: Applications of SrZrO₃ include SOFCs in the energy and aerospace industries, dielectric in the electronic sector, thermal coatings in the chemical industries, and others.
Strontium Zirconate SrZrO₃ is a distorted orthorhombic perovskite (Pbnm) composed of corner-sharing ZrO₆ octahedra with Sr²⁺ occupying the A-sites. Its robust structure provides high thermal stability, chemical inertness, dimensional stability, and wide-bandgap insulating behaviour. Trivalent dopants such as Y³⁺ or Yb³⁺ can introduce high-temperature proton and oxide-ion conductivity, making SrZrO₃ valuable for electrolyte research. Direct RF sputtering from ceramic SrZrO₃ targets enables better control of film composition, crystallinity, and stoichiometry than separate Sr/Zr sources. Sputtered films are used as chemically stable buffer layers for epitaxial superconducting and ferroelectric oxides, dielectric and thermal-barrier layers, proton-conducting electrolyte hosts, and high-temperature electronic and sensor components.
Orthorhombic perovskite (Pbnm), corner-sharing ZrO6 octahedra with 12-coordinate Sr2+ A-site
Pseudo-cubic perovskite framework supports lattice matching and epitaxial template use with other ABO3 oxide films
Molar mass
~226.84 g/mol
Used for stoichiometric process calculations and target-to-film deposition rate modelling
Density (theoretical)
~5.46 g/cm3
Baseline for target mass/thickness specification and expected sputtered film packing density
Band gap
~5.5-6.0 eV (wide-bandgap insulator)
High resistivity favours RF or pulsed-DC sputtering and supports use as an electrically insulating buffer or dielectric layer
Melting point
~2500-2550 degrees C
Exceptional refractoriness gives long target service life under sustained high-power plasma bombardment
Thermal conductivity
~2.0 W/(m*K)
Comparatively low value typical of complex zirconate ceramics; informs target bonding and cooling requirements to avoid thermal-shock cracking
Sputtering behavior
Ceramic oxide target; RF or pulsed-DC magnetron sputtering typically used
Insulating perovskite target requires RF or asymmetric-bipolar pulsed-DC power delivery to avoid charge buildup and arcing
Types & Grades of Strontium Zirconate
Strontium Zirconate targets are offered in standard catalogue sizes and grades, with custom purity, density, and geometry available for OEM and R&D deposition systems.
Grade / Form
Typical Purity
Key Features / Uses
Standard catalogue disc
99.9% (3N)
1in and 2in diameter stock discs (IN-SrZr-01, IN-SrZr-02) for R&D and process development; fastest lead time
High-purity grade
99.99% (4N)
Reduced transition-metal and alkali contamination for buffer-layer and dielectric films where trap states and leakage must be minimised
Ultra-high-purity grade
99.999% (5N), custom
Research-grade material for epitaxial buffer layers and proton-conductor studies where trace impurities affect ionic transport
Large-format / custom
99.9% – 99.99%
Rectangular and oversized round targets sized to production in-line and multi-substrate coating systems
Bonded assembly
99.9% – 99.99% target on Cu or In backing plate
Improves thermal dissipation and mechanical integrity of this refractory ceramic during high-power sputtering
Applications of Strontium Zirconate
Sputtered films of Strontium Zirconate support demanding roles across research and production applications where this material’s specific structural, electronic, or optical properties are the key requirement.
Industry
Application
Function
Superconducting electronics
Chemically inert buffer/template layer beneath epitaxial YBCO and related cuprate films
Provides a stable, lattice-compatible insulating interface that limits substrate interdiffusion during high-temperature film growth
Clean energy/fuel cells
Host lattice for Y- or Yb-doped SrZrO3 proton-conducting electrolyte and interlayer films
Undoped SrZrO3 sputtered films serve as the structural starting point for high-temperature proton- and oxide-ion-conducting membranes.
Semiconductor R&D
High-k, wide-bandgap dielectric thin films for capacitor and gate-stack studies
Combines high resistivity with thermal stability for exploratory dielectric-layer research
Technical Depth: in-house quality control with ICP-MS and XRF purity verification, density measurement, and full certificates of analysis on every target.
Global Logistics: reliable supply from single R&D-scale targets to production-line volumes, with established international shipping.
Responsive Support: direct access to materials engineers for grade, bonding, and geometry selection, and process-compatibility questions.
Take the Next Step
Infinita Materials fabricates Strontium Zirconate sputtering targets engineered to the purity, density, and geometry your deposition process requires. Whether the requirement is a standard catalogue target or a custom size, purity, or bonded assembly, our team can help match the right specification to your deposition system. Request a quote or speak with our technical team to discuss your target specification.
Other Related Product to Strontium Zirconate, SrZrO3
SrZrO₃ offers high thermal stability, excellent dielectric properties, and chemical resistance, making it versatile for various industrial applications.
Applications of SrZrO₃ include SOFCs in the energy and aerospace industries, dielectric in the electronic sector, thermal coatings in the chemical industries, and others.
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