464228

Zirconium(IV) oxide-yttria stabilized

submicron powder, 99.9% trace metals basis (purity excludes ~2% HfO₂)

• Sinônimo(s): YSZ, Yttria stabilized zirconia, Yttrium stabilized zirconium oxide
• Fórmula linear: ZrO_{2 ·} Y₂O₃
• Número CAS: 114168-16-0
• Peso molecular: 349.03
• Número MDL: MFCD00145546
• Código UNSPSC: 26111700
• ID de substância PubChem: 329757174
• NACRES: NA.23

Propriedades

• Nível de qualidade: 100
• Ensaio: 99.9% trace metals basis (purity excludes ~2% HfO₂)
• Formulário: submicron powder
• contém: ~8 wt. % yttria as stabilizer
• características do produto alternativo mais ecológico: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• área da superfície: 5.0-9.0 m²/g
• tamanho de partícula: ~700 nm
• pf: >2,600 °C (lit.)
• densidade: >5.95 g/cm³ (when sintered at 1450º C for 4 hours)
• categoria alternativa mais ecológica: , Enabling
• cadeia de caracteres SMILES: O=[Zr]=O.O=[Y]O[Y]=O
• InChI: 1S/5O.2Y.Zr
• chave InChI: KSTOPEBVPBSOTK-UHFFFAOYSA-N

Descrição

Descrição geral

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Yttria stabilized zirconia (YSZ) is the most commonly used solid electrolyte for solid oxide fuel cells (SOFCs) and oxygen sensors.[1] YSZ exhibits high oxygen-ionic conductivity while blocking electronic conduction.[2] YSZ particles may be synthesized from yttrium nitrate or isopropoxide by the sol gel method.[3] YSZ nanoparticles may be prepared in supercritical water (SCW).[4] YSZ nanoparticles of different sizes with varying % mol of yttria may be obtained by CO₂ laser based continuous/pulsed laser vaporization method.[5]

Zirconium(IV) oxide-yttria stabilized (YSZ) (submicron powder) 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.[6][7][8]

Aplicação

Collagen-yttria-stabilized amorphous zirconia hybrid scaffolds may be developed.[2] YSZ thin films may be used as thermal barrier coatings on combustors, stationary and rotating components of gas turbines or diesel engines. 6

Electrolyte material for solid oxide fuel cells (SOFC).

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[7]
• an electrolyte in the fabrication of solid oxide fuel cells (SOFCs)[9]
• in the fabrication of zirconia dental implant abutments[10]
• membranes for micro energy conversion devices[11]
• a solid acid and a catalyst for catalytic applications[12]

Embalagem

Packaged in glass bottles

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H315,H319,H335
• Declarações de precaução: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classificações de perigo: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Gloves