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572349

Yttria stabilized zirconia

nanopowder

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Synonym(s):

Zirconium(IV) oxide-yttria stabilized, YSZ, Yttria stabilized zirconia, Yttrium stabilized zirconium oxide

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About This Item

Linear Formula:
ZrO2 · Y2O3
CAS Number:
114168-16-0
Molecular Weight:
349.03
UNSPSC Code:
26111700
PubChem Substance ID:
329758284
NACRES:
NA.23
MDL number:
MFCD00145546
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Product Name

Zirconium(IV) oxide-yttria stabilized, nanopowder

assay

92% ZrO2 basis

Quality Segment

form

nanopowder

contains

8 mol % yttria as stabilizer

composition

(ZrO2)0.92(Y2O3)0.08

sustainability

Sustainability features

surface area

>100 m2/g

particle size

≤100 nm, 5-10 nm (crystallite size)

mp

>2,600 °C (lit.)

application(s)

glass & ceramic
hydrogen and fuel cell

greener alternative category

SMILES string

O=[Zr]=O.O=[Y]O[Y]=O

InChI

1S/5O.2Y.Zr

InChI key

KSTOPEBVPBSOTK-UHFFFAOYSA-N

General description

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.
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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
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
  • 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

Packaging

Packaged in glass bottles

Other Notes

Alternative CAS number: 114168-16-0

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

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

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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