Zirconium grinding media

1.       Introduction
 
Zirconium grinding media has high density and toughness and super hardness, so it has better grinding efficiencies compared with other grinding media such as Alumina and Agate. The high wear-resistant zirconium grinding media prevents materials from being contaminated and chemical etching or short service life of the grinder.
These special feature make zirconium grinding media especially suitable for material grinding in important occasion.
 
2.       Product features
 
A. Preventing material from contamination
B. High grinding efficiency
C. Suitable for high viscosity, wet grinding and dispersion
D. High efficiency, long service life,  low cost
 
3.       Applications
 
A. High strength and high toughness products
Magnetic materials  Piezoelectric materials   Insulating materials
B. Wear and corrosion resistance products
Coating   Textile    Pigment dispersions    Ink and dyestuffs
C. Prevention of product contamination
Medical material    Foodstuffs
D. Ceramicas
Electronics ceramics    Refractory ceramics   Engineer ceramics
 
4.       Available sizes
 
Ceramic balls are available in the following standard sizes:
2, 3, 5, 6.5, 10, 12, 15, 20, 25, 30, 35 mm
Cylindrical media are available in the following standard sizes:
¦µ7*7, ¦µ9.7*9.7, ¦µ12.7*12.7, ¦µ15*15 mm
 
5.       Zirconium grinding media properties
 
Items
Unit
Typical Values
Composition
Wt%
94.8%ZrO2 ; 5.2% Y2O3
Packed density
Kg/l
3.5 (¦µ0.7MM)
Bulk density
g/cm3
6.0
Hardness(HV)
Gpa
>10
Modulus of Elasticity
Gpa
200
Thermal Conducitivity
w/m.k
3
Thermal Expansion coefficient
 
9.6
Crushing strength
KN
¡Ý15
Fracture toughness
Mpam0.5
8
Grain size
¦Ìm
¡Ü0.5