Cerium Nitrate Rare Earth Passivation
Cerium nitrate rare earth passivation agent utilizes cerium(III) ions to form a cerium oxide/hydroxide barrier layer on aluminum alloy, magnesium alloy, and zinc substrates, providing excellent corrosion inhibition through a cathodic blocking mechanism. This rare earth-based treatment is completely free of chromium, heavy metals, and hazardous substances, making it ideal for aerospace and defense applications transitioning from chromate. The cerium passivation layer also exhibits self-healing properties due to the release of Ce3+ ions at active corrosion sites.
المواصفات الفنية
| pH | 5.0-7.0 |
| appearance | Colourless to pale yellow solution |
| film appearance | Clear to pale golden |
| active content (%) | ≥30 |
| Ce³⁺ content (g/L) | 5-15 |
مجالات التطبيق
- Aerospace aluminum alloy chromate replacement passivation
- Magnesium alloy structural component corrosion protection
- Military aircraft skin and structure treatment
- High-performance aluminum alloy coating preparation
- Research and development of rare earth conversion coatings
مميزات المنتج
- Rare earth cathodic blocking mechanism for excellent corrosion protection
- Self-healing properties through cerium ion release at defect sites
- Completely chromium-free and heavy metal-free formulation
- Effective on both aluminum and magnesium alloys