Zirconia ball is also called zirconia grind ball, zirconia ceramic ball,

zirconium bead, ultra-fine grinding media and zirconia mini bead. It

has smooth and gloss surface like pearl, which is the most excellent

among all grinding media.

Zircoia grind ball owns advantages of high hardness,

high toughness and high density, good abrasion

resistance, heat-resistance, corrosion-resistance, high

stiffness, non-magnetic and electrical isolation. Its

thermal expansion ratio is next to steel. Its hardness and

strength can be hardly changed even under condition of

600℃.

1. High grinding efficiency: It has higher grinding 1. High grinding efficiency: It has higher grinding

efficiency under some conditions.

2. Good fluidity: Smooth and gloss surface, lower

abrasion compared with other media.

3. Impact resistance and low abrasion: TZP zirconia 3. Impact resistance and low abrasion: TZP zirconia

ceramic mini ball has good toughness, and it won’t be

cracked and peeled under high speed rotation and high

concentration environment and its abrasion ratio is only

half of zirconium silicate beads.

Zircoia mill ball is used for grinding materials

into ultra-fine powder in wet and dry

methods. It is commonly applied to the

following fields:

A. High strength and toughness products:

magnetic material, piezoelectric ceramics,

dielectric ceramics

B. Prevent pollution: medicine, food, B. Prevent pollution: medicine, food,

cosmetic and dyeing industries.

C. Abrasion and corrosion resistant products:

painting and coating, printing ink, paper

making, solar cell, and nonmetal industries.

D. Ceramics: electronics ceramics, refractory

ceramics, structural ceramics.

Composition

Packed Density

Specific Density

Hardness(HV)

Thermal Conductivity

Crushing Load

Fracture Toughness

Grain size

Thermal expansion Coefficient(20-400)

wt%

Kg/L

g/cm3

Kg/mm2

w/m.k

KN

Mpa.m1/2

um

*10-5/℃(20-400℃)

94.8% ZrO2/5.15%Y2O3

3.5(diameter 7mm)

≥6.02

≥1250

3

≥20(diameter 7mm)

≥9

≤0.5

9.6

Main Material

ZrO2

Y2O3

TiO2

P

SiO2

Fe2O3

S

N

Zirconium Oxide -ZrO2

94.48

5.15

0.0018

< 0.035

0.007

0.0009

< 0.03

< 0.25