Ceramic springs for high-temperature SOFC/SOEC stack compression and sealing
All-ceramic coil springs that maintain constant compressive force at SOFC/SOEC operating temperatures (600–1000°C), enabling reliable gas sealing and electrical contact in cell stacks without creep or permanent deformation.
Problem solved
Metal springs relax and creep at SOFC/SOEC operating temperatures above 600°C, causing loss of stack compression, increased contact resistance, and gas leakage. Ceramic springs maintain elastic force at up to 1000°C in both air and hydrogen atmospheres.
Application contexts
- SOFC stationary power generation
- SOEC hydrogen production stacks
- rSOC reversible systems
- High-temperature electrochemical test rigs
Technical principle
High-purity alumina/silica ceramic coil springs with near-zero thermal creep up to 1000°C, electrically insulating, corrosion-resistant in air/hydrogen atmospheres. Available in 9 load ratings (2.0–14.0 kgf / 19.6–137.2 N) and custom sizes.
Typical use cases
- SOFC/SOEC stack compression for gas sealing
- High-temperature electrical insulation in stack assembly
- Laboratory test fixtures for cell evaluation
Partnership route
How global engineering teams typically engage this asset.
Helpful to include: required load (kgf/N) and deflection (mm) · operating temperature and atmosphere · spring diameter constraints · target stack height
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- Source: マグネクス株式会社 セラミックスプリング
- Original language: JA
- Summary AI-assisted; translation status: Unreviewed