zirconium oxide balls for ball mills

Compound Formula     94.6%ZrO2+5.2%Y2O3

Molecular Weight      123.22

Appearance           White

Melting Point         2,715° C (4,919° F)

Boiling Point          4,300° C (7,772° F)

Density              6 g/cm³ （Ф5mm）

Hardness              >12GPa  HV

Thermal conductivity   3 W/m·K

Thermal Expansion coefficient  9.6×10^-6/℃  (20 to 400℃)

Elastic modulus           >12Gpa

Pressing intensity      ≥75KN(Ф1.5mm)

Fracture tenacity       8 MPam½

High purity YSZ (99.5% Yttria-stabilized zirconia) ceramic balls

Zirconia (ysz) Grinding Media (Balls) Properties

Compound Formula     94.6%ZrO2+5.2%Y2O3

Molecular Weight      123.22

Appearance           White

Melting Point         2,715° C (4,919° F)

Boiling Point          4,300° C (7,772° F)

Density              6 g/cm³ （Ф5mm）

Hardness              >12GPa  HV

Thermal conductivity   3 W/m·K

Thermal Expansion coefficient  9.6×10^-6/℃  (20 to 400℃)

Elastic modulus           >12Gpa

Pressing intensity      ≥75KN(Ф1.5mm)

Fracture tenacity       8 MPam½

Features of YSZ Grinding Media

* Wearing a very low (ppm) the amount of materials to prevent pollution

* High grinding efficiency

* Lower total costs due to the long using life.

* For high viscosity, wet grinding and dispersion of occasions.

SPHERICAL ZIRCONIA (YSZ) GRINDING MEDIA

ø 0.1-0.2mm  ø 0.2-0.3mm  ø 0.3-0.4mm  ø 0.3-0.5mm  ø 0.4-0.6mm

ø 0.6-0.8mm  ø 0.8-1.0mm  ø 1.0-1.2mm  ø 1.2-1.4mm  ø 1.4-1.6mm

ø 1.6-1.8mm  ø 1.8-2.0mm  ø 2.0-2.2mm  ø 2.2-2.5mm  ø 2.5-2.8mm

ø 2.8-3.2mm  ø 3.2-3.5mm  ø 4mm   ø 5mm   ø 8mm

ø 10mm  ø 20mm  ø 30mm  ø 40mm  ø 50mm

CYLINDRICAL ZIRCONIA (YSZ) GRINDING MEDIA

Ø5×5 Ø7.5×7.5  Ø10×10  Ø12.55×12.55  Ø12.7×12.7  Ø15×15 Ø20×20mm

Other sizes may also be available based upon customers’ request. Feel free to send us an inquiry.

Advantages of Zirconia Grinding Media

Ø  Ultra low wear loss as a result of the transformation-toughening mechanism unique to the yttria stabilized zirconia (YSZ) material system.

Ø  Higher grinding efficiency and reduced grinding time due to zirconia’s higher density (compared with alumina and glass).

Ø  Most durable grinding material, reducing operational cost in the long run. Wear rate substantially lower than Al2O3, CeO2-ZrO2, and MgO-ZrO2 grinding media.

Ø  Suitable for high velocity operations and wet grinding operations.

Applications of Zirconia Grinding Media

Ø  Iron- and chrome-based magnetic materials (for audio/video recording tapes) and other magnetic materials.

Ø  Electronic-grade ceramics (ferroelectric, piezoelectric, dielectric, capacitors, sensors, etc.), advanced structural ceramics, and other ceramic ingredients.

Ø  Nanostructured and superfine powders.

Ø  Toner materials for photocopiers and laser printers.

Ø  Inks, dyes, paint, and other pigments.

Ø  Pharmaceutical, food, chemical, and textile applications.

Ø  Lab milling operations demanding minimized contamination from milling media.

Applicable Equipment:

Ø  Horizontal sand mill

Ø  vertical sand mill

Ø  basket mill

Ø  ball mill

Ø  vibration mill

Packing Service

WISE’s yttria stabilized zirconia grinding media grinding media is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.