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Zirconium Oxide (ZrO2) Balls
  • Zirconium Oxide (ZrO2) Balls
  • Zirconium Oxide (ZrO2) Balls

Zirconium Oxide (ZrO2) Balls

ZIRCONIUM OXIDE (ZrO2) BALLSRefractory ceramic material balls, they provide excellent corrosion, wear and heat resistanc

ZIRCONIUM OXIDE (ZrO2) BALLS


Refractory ceramic material balls, they provide excellent corrosion, wear and heat resistance. They improve their hardness when they are subjected to collisions. Yttrium doped Zirconia Oxide, they provide the best properties between ceramic materials in grinding and milling applications.

 

Applications

Special bearings, pumps and valves that operate in aggressive environments, check valves, flow meters, measurement instruments. They are used in the medical field (very pure material). Grinding and milling applications.

 

Commercial name

Other name

Formula

Oxides %

Zirconium Dioxide

Zirconia

ZrO2 + Y2O3

95% ZrO2 / 5% Y2O3

 

Physical / Mchanical / Termal / Electric / Magnetic Properties

Property

Symbol

U.o.M.

Type

Notes

Value

Density

δ

g/cm3

Physical

Room temp.

6

Young's modulus

E

GPa

Mechanical

-

210

Friction coefficient

µ

-

Mechanical

Room temp.

0.2

Specific heat

c

J/(kg·℃)

Thermal

Room temp.

450

Coefficient of linear thermal expansion

α

10-6/ºC

Thermal

(ΔT=0-100°C)

9.8

Thermal conductivity

λ

W/(m·K)

Thermal

Room temp.

3.5

Electric resistivity

ρ

Ω*m*10-9

Electric

-

> 1011

Relative magnetic permeability

µ

-

Magnetic

Diamagnetic

<1


Technical Data

Property

Type

U.o.M.

Values

U.o.M.

Values

Hardness

Mechanical

HRA

87-91

-

-

Ultimate compressive strength

Mechanical

MPa

1750-4000

psi*103

254-580

Service temperature

Thermal

ºC

0/1350

ºF

32/2462


Rang

Diameters

U.o.M.

Diameters

U.o.M.

Precision Grade (ISO 3290)

2.381 - 50.800

mm

3/32 - 2

inch

G10 -......- G1000

 

Corrosion Resistance

Zirconia balls are chemically inert in molten metals, caustic and organic solvents and most acids substances. They are not resisting against hydrochloric acid and strong alkaline solutions.