NETZSCH-Beads^®

`ZetaBeads^®`

Yttrium-stabilized zirconium oxide grinding beads (Standard quality)

ZetaBeads^® are spherical, yttrium-stabilized zirconium oxide grinding media of a high density and hardness. In contrast to ZetaBeads^®Plus and ZetaBeads^®Nano their surface is not polished. ZetaBeads^® are low-wear grinding beads that are used for the iron-free production of highquality products.

Available standard qualities

Type	Fraction [mm]
`ZetaBeads^®` 1.7	1.5 - 2.0
`ZetaBeads^®` 2.2	2.0 - 2.5
`ZetaBeads^®` 3.0	2.6 - 3.3

Chemical composition

about (in weight %)
ZrO₂+ HfO₂	94
Y₂O₃	5
Others	< 1

Mechanical properties


Densitiy	6.0 kg/l
Bulk density	~3.6 kg/l
Young modulus	> 200 GPa
Vickers hardness	> 1100 HV

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