Square Alumina (Al₂O₃) Ceramic Substrates, 20 pcs/pack

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Square Alumina (Al₂O₃) Ceramic Substrates

Overview: High-performance polycrystalline aluminum oxide (Al₂O₃) ceramic substrates in square and rectangular formats, engineered for demanding electrical insulation, thermal management, and laboratory research applications. Available in sizes from 5 × 5 mm up to 40 × 40 mm with various thickness options.

Key Specifications:
– Format: Square / Rectangular
– Purity: ≥99.5% Al₂O₃
– Available Sizes: 5 × 5 mm to 40 × 40 mm (custom sizes available)
– Thickness: 0.5 mm – 4.0 mm
– Surface: Ceramic (as-sintered or lapped finish)
– Color: White/ivory
– Pack Size: 20 pcs/pack

Material Properties:
– Dielectric constant: ~9.8 (1 MHz)
– Thermal conductivity: ~24–30 W/(m·K)
– Maximum service temperature: >1,600°C
– Vickers hardness: ~1,400 HV
– Chemical resistance: Excellent (stable in acids, alkalis, and most solvents)

Applications:
– Electronic circuit substrate insulation
– High-temperature furnace fixtures and sample holders
– Thermal break substrates in research setups
– Electrode support in electrochemical experiments
– Dielectric layers in capacitor and sensor research
– High-voltage insulation platforms

Notes:
– Polycrystalline ceramic (not single-crystal) — for precision single-crystal sapphire substrates, see Al₂O₃-1-x products
– Custom shapes and sizes available on request

Option 1

10 × 10 × 0.635 mm, 10 × 10 × 1 mm, 100 × 100 × 1 mm, 100 × 50 × 1.5 mm, 20 × 20 × 0.5 mm, 20 × 20 × 0.635 mm, 20 × 20 × 1 mm, 20 × 20 × 2 mm, 20 × 20 × 3 mm, 20 × 20 × 4 mm, 20 × 20 × 5 mm, 20 × 40 × 1 mm, 30 × 30 × 0.635 mm, 30 × 30 × 1 mm, 40 × 40 × 0.635 mm, 40 × 40 × 1 mm, 40 × 60 × 1 mm, 5 × 15 × 2 mm, 5 × 17.5 × 1 mm, 5 × 5 × 0.5 mm, 5 × 5 × 2 mm, 5 × 50 × 1 mm, 50 × 50 × 1 mm