• Advanced Ceramics — Typical Property Values, Selected Ceramic Materials

• Semiconductor Components — Typical Property Values, Selected Ceramic Materials

• Metallized & Brazed — Typical Property Values, Selected Ceramic Materials

• Metallized Ceramics — Typical Property Values, Selected Ceramic Materials

• Optoelectronics — Typical Property Values, Selected Ceramic Materials

 

Property
Thermal
Conductivity
Electrical
Resistivity
Dielectric
Constant
Coefficient
of Thermal
Expansion
Density
General Characteristics
Units
W/mOK
Ohm-cm
RT-1 MHz
10-6 OC
Grams/cm3
AIN Aluminum Nitride
170-190
>1014
8.9
4.6
3.30
High thermal conductivity.
Non toxic. Readily available.

AI2O3 99.5% Aluminum Oxide
(94%-98% also available)
36
>1014
9.8
8.2
3.89
Good electrical properties.
Corrosive resistance.
Strong metallization.
BeO 99% Beryllium Oxide
260
>1014
6.7
8.5
2.85
High thermal conductivity.
Good electrical properties.
Strong Metallization.
Si3N4 Silicom Nitride
42
>1014
9.9
3.0
3.29
Thermal shock resistance.
High strength.
Sapphire
40
>1016
9.4
8.4
3.98
Chemically inert.
Hermetic brazing.
High light transmission.
SiC Silicon Carbide
120
>1014
9.0
4.5
3.21
Chemically inert.
Thermal shock resistance.
High thermal conductivity.
ZrO2 Zirconia
2.2
>1013
9.0
10.3
6.04
Impact and wear resistant.
High strength.
Corrosive resistance.

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Property
Thermal
Conductivity
Electrical
Resistivity
Dielectric
Constant
Coefficient
of Thermal
Expansion
Density
General Characteristics
Units
W/mOK
Ohm-cm
RT-1 MHz
10-6 OC
Grams/cm3
AIN Aluminum Nitride
170-190
>1014
8.9
4.6
3.30
High thermal conductivity.
Non toxic. Readily available.

AI2O3 99.5% Aluminum Oxide
(94%-98% also available)
36
>1014
9.8
8.2
3.89
Good electrical properties.
Corrosive resistance.
Strong metallization.
BeO 99% Beryllium Oxide
260
>1014
6.7
8.5
2.85
High thermal conductivity.
Good electrical properties.
Strong Metallization.
Si3N4 Silicom Nitride
42
>1014
9.9
3.0
3.29
Thermal shock resistance.
High strength.
Sapphire
40
>1016
9.4
8.4
3.98
Chemically inert.
Hermetic brazing.
High light transmission.
SiC Silicon Carbide
120
>1014
9.0
4.5
3.21
Chemically inert.
Thermal shock resistance.
High thermal conductivity.
ZrO2 Zirconia
2.2
>1013
9.0
10.3
6.04
Impact and wear resistant.
High strength.
Corrosive resistance.

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Property
Thermal
Conductivity
Electrical
Resistivity
Dielectric
Constant
Coefficient
of Thermal
Expansion
Density
General Characteristics
Units
W/mOK
Ohm-cm
RT-1 MHz
10-6 OC
Grams/cm3
AIN Aluminum Nitride
170-190
>1014
8.9
4.6
3.30
High thermal conductivity.
Non toxic. Readily available.
AI2O3 99.5% Aluminum Oxide
(94%-98% also available)
36
>1014
9.8
8.2
3.89
Good electrical properties.
Corrosive resistance.
Strong metallization.
BeO 99% Beryllium Oxide
260
>1014
6.7
8.5
2.85
High thermal conductivity.
Good electrical properties.
Strong Metallization.
Si3N4 Silicom Nitride
42
>1014
9.0
3.0
3.29
Thermal shock resistance.
High strength.
Sapphire
40
>1016
9.4
8.4
3.98
Chemically inert.
Hermetic brazing.
High light transmission.
SiC Silicon Carbide
120
>1014
9.0
4.5
3.21
Chemically inert.
Thermal shock resistance.
High thermal conductivity.
ZrO2 Zirconia
2.2
>1013
9.0
10.3
6.04
Impact and wear resistant.
High strength.
Corrosive resistance.

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Property
Thermal
Conductivity
Electrical
Resistivity
Dielectric
Constant
Coefficient
of Thermal
Expansion
Density
Units
W/mOK
Ohm-cm
RT-1 MHz
10-6 OC
Grams/cm3
AIN Aluminum Nitride
170-190
>1014
8.9
4.6
3.30
AI2O3 99.5% Aluminum Oxide
20.5
>1014
9.91
6.3-9.1
3.67
AI2O3 99.5% Aluminum Oxide
25.6
>1014
10.10
6.4-9.0
3.72
AI2O3 99.5% Aluminum Oxide
26.8
>1014
10.14
6.9-9.0
3.76
AI2O3 99.5% Aluminum Oxide
29.3
>1014
10.20
6.9-9.4
3.89
BeO 99.0% Berylium Oxide
260
>1014
6.7
8.5
2.85
Copper
393
—
—
17.0
8.93
GaAs
54
3.8 x 108
—
6.5
5.32
Si
151
23 x 105
—
4.2
2.3

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Up to 4.5” diameter
Finish
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Gold
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A/R Coating
Highly durable and tuned for highest transmission
Highly durable and tuned for highest transmission
Highly durable and tuned for highest transmission
High Temperature and durability
Hermeticity
10-9 std cc/sec He
10-9 std cc/sec He
10-9 std cc/sec He
10-9 std cc/sec He
Working Temperature
–70 to 400°C
–70 to 400°C
–70 to 400°C
–70 to 400°C
Other Options
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weld ring
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weld ring
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Applications
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Spectrometry
Harsh environment sensor
High pressure and
temperature chambers

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