Product overview
An ultra-high-purity granular aluminum nitride feedstock for crystal-growth and purity-sensitive ceramic applications, offering higher bulk density and tightly controlled oxygen and iron.
Key features
- · Granular D50 option of 50–100 µm
- · Bulk density of 0.8–1.10 g/cm³
- · Oxygen below 200 ppm
- · Iron below 2 ppm
- · Carbon listed at 10 ppm in the source specification
Typical applications
- · PVT and other AlN crystal-growth feedstock studies
- · Ultra-high-purity nitride processing
- · Low-contamination ceramic formulations
- · High-temperature material research
- · Controlled-charge loading where granule flow matters
Technical specification
Property |
UH grade |
Unit / note |
Bulk density |
0.8–1.10 |
g/cm³ |
D50 |
50–100 |
µm; optional |
Oxygen |
<200 |
ppm |
Carbon |
10 |
ppm; value as listed in source specification |
Iron |
<2 |
ppm |
Specification note: Values are reproduced from the supplied product specification. Final acceptance criteria, test methods and sampling plan must be confirmed in the quotation or purchase specification. |
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Grade and order selection
1. State the intended application and process temperature or environment.
2. Specify grade, dimensions, orientation or polytype, thickness and surface finish.
3. Define the inspection method, defect limits and required certificate data.
4. Confirm sample quantity, annual demand, packaging and delivery expectations.
Frequently asked questions
Why use granules instead of fine powder?
Granules can improve handling, packing and charge consistency, but the preferred form depends on the customer’s process.
Is the carbon value a maximum?
The source table lists 10 ppm without an inequality sign. Confirm whether this is a typical value or acceptance limit before contracting.
Can packing size be customized?
Please provide trial quantity, production quantity, packaging atmosphere and contamination-control requirements.






