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Sigma-Aldrich

Zirconium(IV) oxide-yttria stabilized

greener alternative

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

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

Assay

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

form

submicron powder

contains

~8 wt. % yttria as stabilizer

greener alternative product characteristics

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surface area

5.0-9.0 m2/g

particle size

~700 nm

mp

>2,600 °C (lit.)

density

>5.95 g/cm3 (when sintered at 1450º C for 4 hours)

greener alternative category

SMILES string

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

InChI

1S/5O.2Y.Zr

Inchi Key

KSTOPEBVPBSOTK-UHFFFAOYSA-N

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This Item
230693572349572322
Zirconium(IV) oxide powder, 5 μm, 99% trace metals basis

Sigma-Aldrich

230693

Zirconium(IV) oxide

form

submicron powder

form

powder

form

nanopowder

form

nanopowder

mp

>2,600 °C (lit.)

mp

2700 °C (lit.)

mp

>2,600 °C (lit.)

mp

-

density

>5.95 g/cm3 (when sintered at 1450º C for 4 hours)

density

5.89 g/mL at 25 °C (lit.)

density

-

density

-

contains

~8 wt. % yttria as stabilizer

contains

-

contains

8 mol % yttria as stabilizer

contains

3 mol % yttria as stabilizer

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

-

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more details.
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 the 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) (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.

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

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

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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)
Zigzag or spiral-shaped nanostructures improve mechanical stability in yttria-stabilized zirconia membranes for micro-energy conversion devices
Shi Y, et al.
Nano Energy, 59(1), 674-682 (2019)
Confined Transformation of UiO-66 Nanocrystals to Yttria-Stabilized Zirconia with Hierarchical Pore Structures for Catalytic Applications
Qin R and Zeng H
Advances in Functional Materials, 29(39), 1903264-1903264 (2019)
Yttria-stabilized zirconia thermal barrier coatings?a review
Chen LB
Surface Review and Letters, 13(05), 535-544 (2006)

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