Zirconia Oxides:

Zirconia Oxide is one of the fastest growing categories of grinding medias due to its high hardness, durability, smooth surface, value and multiple options for users. Not all zirconia oxide beads are equal. For example, just because a bead is yttria zirconia oxide does not mean that it’s an excellent bead. Overall characteristics will depend upon grain size, microcrystalline structure, formulation, method of manufacturing, polish, sphericity, roundness, density, Vickers hardness, particle size distribution, and batch to batch consistency.

Most all zirconia oxide media is available in very small sizes up to very large sizes such as 50 mm and sometimes even larger. The highest quality beads can be put through the HIP (hot isostatic press) process to improve toughness. There is a relatively new lower cost yttria that has excellent performance available in limited sizes.

Alumina Zirconia Oxide Density: 2.8-6.1 gm/cc varies with % ZO Hardness: 1000-1300 Vickers
Magnesium Zirconia Oxide Density: 4.085.5 gm/cc Hardness: 1050 Vickers
Cerium Zirconia Oxide Density: 6.1-6.2 gm/cc varies with brand Hardness: 1100-1250 Vickers
Yttria Zirconia Oxide Density: 5.9-6.0 gm/cc varies with brand Hardness: 1150-1300 Vickers

For more detailed information on this subject, please visit the Education & Information section.

For a quote or discussion, complete the Grinding Media Specification Form.

75% Zirconia Oxide + Alumina

75% Zirconia Oxide + Alumina

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78% Zirconia Oxide + Cerium

78% Zirconia Oxide + Cerium

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79% Zirconia Oxide + Cerium

79% Zirconia Oxide + Cerium

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80% Zirconia Oxide + Cerium

80% Zirconia Oxide + Cerium

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82% Zirconia Oxide + Cerium

82% Zirconia Oxide + Cerium

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83% Zirconia Oxide + Cerium

83% Zirconia Oxide + Cerium

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95% Zirconia Oxide + Yttrium Cylinders

95% Zirconia Oxide + Yttria Stabilized Cylinders

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95% Zirconia Oxide + Yttrium

95% Zirconia Oxide + Yttria

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Cerium Zirconia Oxide Flat Top Cylinders

Cerium Zirconia Oxide Flat Top Cylinders

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Cerium Zirconia Oxide Round Top Cylinders

Cerium Zirconia Oxide Round Top Cylinders

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Cerium_Zirconia_Oxide_Satellite_Balls

Cerium Zirconia Oxide Satellite Balls

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HIPed Yttria Zirconia Oxide for add toughness

HIPed Yttria Zirconia Oxide for add toughness

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Lower Cost High Performance Yttria Zirconia Oxide

Lower Cost High Performance Yttria Zirconia Oxide

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Yttria Zirconia Oxide Beads with Tight Size DIstribution

Yttria Zirconia Oxide Beads with Tight Size Distribution

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Polymers

Polymers are counter intuitive due to the low density for use as grinding media. However, if the product is low viscosity and shear thinning, it can be quite effective.

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Silicas

Silicas are one of the oldest materials for use as a grinding media.  They are still used where low viscosity, low temperatures, low wear rates on equipment and lower costs are required.

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Aluminas

Aluminas are one of the most versatile medias used for grinding as it is available in a wide range of purities, sizes, shapes and formulations depending upon the type of mill and product being ground.

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Zirconia Silicates

Zirconia Silicates were the first major advancement in improved density and durability without sacrificing price when compared to alumina for a grinding media used in small media mills.

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Steels

Steel is an excellent grinding media as long as the product can tolerate metal contamination and graying.

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Exotics

The Exotic Grinding Media Section lists materials of construction that are not commonly used as a grinding media.

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Descriptions

 

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