APPLICATION
Single-Crystal Sapphire

Built for sapphires
Our offer to the sapphire industry comes in two forms: SupPuck alpha alumina monoliths, providing the highest purity levels and lowest emissions for Kyroupolos and Czochralski methods, and our spray dried, flowable gamma alumina powder for the Verneuil process.

Advantages
- Specifically designed for sapphires: SupPUCK alumina offers the highest purity, lowest emissions HPA monolith.
- Patented process removed the need for pressing, allowing for improved purity.
- Lowest CO2 emissions, reducing the raw material CO2 contribution for sapphire manufacturing.
- Versatile: SupPUCK products can be produced in various shapes. Contact us for further details.
Our Product range
Our offer to the polishing industry is primarily acidic, alpha alumina slurries at purity ranges in the 99.9-99.99% (3N-4N) range. Both high pH and gamma slurry options are available on approval - contact us for further details

The SupPUCK® and SupALOX® alumina range provide solutions for all major forms of sapphire manufacturing, offering the highest purity and lowest emissions in the sector.
SupPuck alpha alumina monoliths for Kyropoulos and Czochralski sapphires
PRODUCT | PURITY | CRYSTAL PHASE | Density g/ ml | Binder Content/ % | Dimensions |
---|---|---|---|---|---|
SupPUCK B4520 | 4N5 | ALPHA | 3.0 - 3.2 | 0 | 50x50 mm |
SupPUCK B4521 | 4N5 | ALPHA | 3.0 - 3.2 | 0 | Various* |
SupPUCK B5021 | 5N | ALPHA | 3.0 - 3.2 | 0 | Various* |
* The SupPuck manufacturing process is undergoing revision to provide improved shape customisation, contact AEM for further details.
SupAlox spray-dried gamma alumina for Verneuil process sapphires
PRODUCT | PURITY | CRYSTAL PHASE | PSD (D50)/ μm | BET m2/g |
---|---|---|---|---|
SupALOX NG27F | 4N | GAMMA | 29 | 100 |

We are an ISO 9001, ISO 45001, and ISO 14001 certified company.
We are committed to excellence and sustainability. Our ISO 9001, ISO 45001, and ISO 14001 certifications reflect our dedication to quality management, occupational health and safety, and environmental responsibility
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