572349

Zirconium(IV) oxide-yttria stabilized

nanopowder

• Synonym(s): YSZ, Yttria stabilized zirconia, Yttrium stabilized zirconium oxide
• Linear Formula: ZrO_{2 ·} Y₂O₃
• CAS Number: 114168-16-0
• Molecular Weight: 349.03
• MDL number: MFCD00145546
• UNSPSC Code: 26111700
• PubChem Substance ID: 329758284
• NACRES: NA.23

Properties

• Assay: 92% ZrO₂ basis
• Quality Level: 100
• form: nanopowder
• contains: 8 mol % yttria as stabilizer
• composition: (ZrO₂)_0.92(Y₂O₃)_0.08
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• surface area: >100 m²/g
• particle size: ≤100 nm; 5-10 nm (crystallite size)
• mp: >2,600 °C (lit.)
• greener alternative category: , Enabling
• SMILES string: O=[Zr]=O.O=[Y]O[Y]=O
• InChI: 1S/5O.2Y.Zr
• InChI key: KSTOPEBVPBSOTK-UHFFFAOYSA-N

Description

General description

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Yttria-stabilized zirconia (YSZ) is the most commonly used solid electrolyte for solid oxide fuel cells (SOFCs) and oxygen sensors. YSZ exhibits high oxygen-ionic conductivity while blocking electronic conduction. YSZ particles may be synthesized from yttrium nitrate or isopropoxide by sol gel method. YSZ nanoparticles may be prepared in supercritical water (SCW). YSZ nanoparticles of different sizes with varying % mol of yttria may be obtained by CO₂ laser based continuous/pulsed laser vaporization method.

Zirconium(IV) oxide-yttria stabilized (YSZ) (nanopowder) is an oxygen ion conductor with properties such as good ionic conductivity and high physiochemical stability. Its other properties include excellent shock resistance, low thermal conductivity and a high coefficient of thermal expansion.

Application

Collagen-yttria-stabilized amorphous zirconia hybrid scaffolds may be developed. YSZ thin films may be used as thermal barrier coatings on combustors, stationary and rotating components of gas turbines or diesel engines. 6

YSZ can be used for a variety of applications such as:

• a thermal barrier coating for the protection and insulation of metal components in gas turbines
• an electrolyte in the fabrication of solid oxide fuel cells (SOFCs)
• in the fabrication of zirconia dental implant abutments
• membranes for micro energy conversion devices
• a solid acid and a catalyst for catalytic applications

Electrolyte material for solid oxide fuel cells (SOFC).

Packaging

Packaged in glass bottles

Other Notes

Alternative CAS number: 114168-16-0

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves