Aluminum Nitride(AlN) ceramic (plate substrate tubes rod disc crucibles parts etc.)
Aluminum Nitride(AlN) ceramic is a covalent bond compound, atomic crystal, a diamond-like nitrate, hexagonal crystal system, non-toxin, white or gray white, theoretic bulk density 3.26g/cm3. AlN ceramic has following properties:(1)High thermal conductivity (theoretic value 320W/m.K)Property Index of ALN Aluminum Nitride ceramics | |||||
Property Sort | Characteristic | Unit | AN170 | AN200 | AN220 |
Basic Properties | Appearance/color | Gray | Gray | Beige | |
Water absorption | % | 0 | 0 | 0 | |
Volume density | g/cm3 | ≥3.30 | ≥3.30 | ≥3.26 | |
Surface roughness Ra | μm | 0.1~0.6 | 0.1~0.6 | 0.1~0.6 | |
Camber | (length ‰) | ≤2‰ | ≤2‰ | ≤2‰ | |
Thermal Properties | Thermal conductivity (20-30℃) | W/m.k | ≥170 | ≥200 | ≥220 |
Coefficient of Thermal expansivity (20℃~300℃) | ×10-6/℃ | 4.4 | 4.6 | 4.5 | |
Coefficient of Thermal expansivity(40℃~800℃) | ×10-6/℃ | 5.2 | 5.2 | 5.2 | |
Mechanical Properties | Flexural/Bending strength | MPa | ≥420 | ≥300 | ≥200 |
Modulus of elasticity | GPa | 320 | 310 | 310 | |
Moh''s hardness | - | 8 | 8 | 8 | |
Electrical properties | Dielectric constant (1MHz 25℃) | - | 8.9 | 8.6 | 8.5 |
(1MHz 25℃) Dielectric loss | ×10-4 | 2.8 | 2 | 2 | |
Dielectric strength | KV/mm | ≥17 | ≥16 | ≥15 | |
Volume resistivity | Ω.cm | ≥1014 | ≥1014 | ≥1013 |
Regular specification of AlN Aluminum Nitride substrates and Aluminum Nitride wafer | |||||||||||
Thickness(mm) | L*W( mm) | ||||||||||
0.385 | 2″* 2″ 50.8mm*50.8mm | 3″* 3″ 76.2mm*76.2mm | 4″* 4″ 101.6mm*101.6mm | 4.5″* 4.5″ 114.3mm*114.3mm | |||||||
0.5 | |||||||||||
0.635 | |||||||||||
1 | |||||||||||
Diameter(mm) | |||||||||||
1 | Φ16 Φ19 | Φ20 Φ26 | Φ30 Φ35 | Φ40 Φ45 | Φ50 Φ52 | Φ60 | Φ75 | Φ80 | |||
1.2 | |||||||||||
1.5 | |||||||||||
2 | |||||||||||
2.5 | |||||||||||
PS: Aluminum Nitride substrate ceramic substrate,Aluminum Nitride tube,Aluminum Nitride pipe,Aluminum Nitride rod,Aluminum Nitride crucibles,Aluminum Nitride ring,Aluminum Nitride plate,Aluminum Nitride disc,Aluminum Nitride parts etc. Other dimension and thickness which not listed are available upon requests. |
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