572349

Sigma-Aldrich

Zirconium(IV) oxide-yttria stabilized

greener alternative

nanopowder

Synonym(s):
Yttrium stabilized zirconium oxide, Yttria stabilized zirconia, YSZ
Linear Formula:
ZrO2 · Y2O3
CAS Number:
Molecular Weight:
349.03
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

92% ZrO2 basis

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.

particle size

≤100 nm
5-10 nm (crystallite size)

surface area

>100 m2/g

mp

>2,600 °C (lit.)

Featured Industry

Battery Manufacturing

SMILES string

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

InChI

1S/5O.2Y.Zr

InChI key

KSTOPEBVPBSOTK-UHFFFAOYSA-N

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General description

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.
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.

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

25 g in glass bottle
Packaged in glass bottles

Other Notes

Alternative CAS number: 114168-16-0

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

hazcat

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Thermal expansion coefficient of yttria stabilized zirconia for various yttria contents
Hayashi H, et al.
Solid State Ionics, 176(5-6), 613-619 (2005)
Influence of microstructure on the ionic conductivity of yttria-stabilized zirconia electrolyte
Chen XJ, et al.
Materials Science & Engineering. A, Structural Materials : Properties, Microstructure and Processing, 335(1-2), 246-252 (2002)
Fracture resistance of yttria-stabilized zirconia dental implant abutments
Adatia ND, et al.
Journal of Prosthodontics : Official Journal of the American College of Prosthodontists, 18(1), 17-22 (2009)
Yttria-stabilized zirconia thermal barrier coatings?a review
Chen LB
Surface Review and Letters, 13(05), 535-544 (2006)
Thermodynamic vaporization studies of the manganese oxide--yttria stabilized zirconia (YSZ) solid solution
Matraszek A, et al.
J. Eur. Ceram. Soc., 24(9), 2649-2656 (2004)
Articles
This technical spotlight focuses on the thin film solid oxide fuel cells (TF-SOFC). TF-SOFCs refer to solid oxide fuel cells with electrolyte thin films. This review highlights technical advantages of TF-SOFC and introduces deposition methods of electrolyte thin films to fabricate TF-SOFC.
Read More
As with all types of fuel cells, a Solid Oxide Fuel Cell (SOFC) is capable of efficiently transforming chemical energy into electrical energy.
Read More

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