Alumina Ceramic Support -JiFeng Ceramics

Composants structurels en céramique/

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Composants structurels en céramique

Support en céramique d'alumine

Support en céramique d'alumine

The Alumina Ceramic supports are renowned for their resistance to high temperatures, a stable thermal expansion, and robust anti-thermal shock properties, specifically developed for use in metal packaging and high heat industrial conditions.

All ceramic supports are manufactured using ultra-precision tolerances, which outperform the alternatives of plastic and metal for insulation and heat resistance. The material is extensively used in semiconductors high-temperature furnaces and precision equipment. We will accept specific shapes and sizes in accordance to your specifications.

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Détails du produit
Spécifications techniques

Material Properties & Process Advantages

Ultra-High Temperature Stability

Long-term working temperature: 1600°C (short-term up to 1800°C)
Thermal expansion coefficient: 6.5×10⁻⁶/°C (ideal for metal/ceramic sealing)
Thermal shock resistance: ΔT=800°C water cooling > 50 cycles without cracking
Porosité: < 0.5% (high-density sintering process)

Résistance aux environnements extrêmes

Corrosion resistance: Immersed in 98% H₂SO₄ / 40% NaOH for 1000h; weight loss < 0.02%
Plasma erosion resistance: Argon ion bombardment (500W); etching rate ≤ 0.1μm/h

Precision Machining Capability

Dimensional tolerance: ±0,005mm (CNC grinding)
Minimum hole diameter: 0.1 mm (depth-to-diameter ratio up to 20:1)
Complex structures: Multi-step, special-shaped holes, internal threads (laser-assisted sintering)

Paramètre	99.5% Céramique d'alumine	316L Stainless Steel	PEEK Engineering Plastic
Température de travail maximale	1600°C	800°C (oxidation failure)	250°C (thermal deformation)
Conductivité thermique	30 Avec(m·K)	15 Avec(m·K)	0.25 Avec(m·K)
Résistivité volumique	>10¹⁴ Ω·cm (insulator)	7.4×10⁻⁷ Ω·cm (conductor)	10¹⁶ Ω·cm (insulator)
Densité	3.9 g/cm³	8.0 g/cm³	1.3 g/cm³