Specific Density: 4.0g/cm3 size: 0.2~15mm Available Size: Sphere: Φ0.2,Φ0.6,Φ1,Φ1.5,Φ2,Φ2.5,Φ3,Φ10,Φ12,Φ15mm

Physical parameters:

Items	Unit	Parameter
Composition	wt%	65% ZrO2 35% SiO2
Bulk Density	Kg/L	2.6～2.7(Φ 2mm )
Specific Density	g/cm3	4.0～4.1
Hardness(HV)	GPa	>8.5
Elastic Modulus	GPa	200
Thermal Conductivity	W/m.K	3
Crushing Load	KN	≥8 (Φ 7mm )
Fracture Toughness	MPam1-2	6.7
Grain Size	µm	≤0.8
Thermal Expansion Coefficient(20 -400 °C )	10x10 -6 / °C(20-400)	7.0

There are high crush strength which it could not be broken used for long time in the quick speed mill. Zirconia silicate bead formed by sintering. It is widely instead the fused zirconia silicate with pore and easy broken. Applications: Paint& Coating Ultra-fine grinding for cosmetic&Magnetic band Superfine grinding mineral(GCC,Kaolin and so on) Machine: Sand mill. Attrition mill