Properties and applications of alumina ceramics with different alumina content for electronics

Properties and applications of alumina ceramics with different alumina content for electronics

Alumina 99.9
Al2O3 content(%): 99.9
Compressive strength ( MPa, 25℃):2000
Tensile strength (MPa, 25℃):/
Dielectric constant (1MC,25℃)F/m:9.9
Dielectric loss (1MC,25℃): 1×10^(-4) Max.
Linear expansion coefficient (25~700℃) X10^(-6)/℃:8.0
Softening temperature (℃):1600 Min.
Sintering temperature (℃): 1800~1900
Applications:High-pressure sodium lamp translucent arc tube shell, translucent shell

 

Alumina 99
Al2O3 content(%): 99
Compressive strength ( MPa, 25℃):2940
Tensile strength (MPa, 25℃):238
Dielectric constant (1MC,25℃)F/m:10.0
Dielectric loss (1MC,25℃): 1×10^(-4)
Linear expansion coefficient (25~700℃) X10^(-6)/℃:8.0
Softening temperature (℃):1600 Min.
Sintering temperature (℃): 1700~1750
Applications:Microwave tube output window and high temperature insulator

Alumina 97
Al2O3 content(%): 97
Compressive strength ( MPa, 25℃):1960
Tensile strength (MPa, 25℃):189
Dielectric constant (1MC,25℃)F/m:9.5
Dielectric loss (1MC,25℃): 1×10^(-4)
Linear expansion coefficient (25~700℃) X10^(-6)/℃:9.0
Softening temperature (℃):1600 Min.
Sintering temperature (℃): 1600 Min.
Applications:Electronic housing, High-temperature insulator in electronic tube, Vacuum capacitor, Vacuum switch housing

alumina ceramics, advanced ceramics, technical ceramics,industrial ceramics,ceramic components, ceramic parts, lithaiwa

Alumina 95
Al2O3 content(%): 95
Compressive strength ( MPa, 25℃):2100
Tensile strength (MPa, 25℃):182
Dielectric constant (1MC,25℃)F/m:9.0
Dielectric loss (1MC,25℃): 3×10^(-4)
Linear expansion coefficient (25~700℃) X10^(-6)/℃:9.0
Softening temperature (℃):1600 Min.
Sintering temperature (℃): 1600 Min.
Applications:Electronic housing, High-temperature insulator in electronic tube, Vacuum capacitor, Vacuum switch housing

Alumina 75
Al2O3 content(%): 75
Compressive strength ( MPa, 25℃):/
Tensile strength (MPa, 25℃):/
Dielectric constant (1MC,25℃)F/m:9.0
Dielectric loss (1MC,25℃): 10×10^(-4)
Linear expansion coefficient (25~700℃) X10^(-6)/℃:6.0
Softening temperature (℃):1350 Min.
Sintering temperature (℃): 1300~1400
Applications:Insulating ceramic plates for electronic tubes, ceramic shell

advanced ceramics, technical ceramics,industrial ceramics,ceramic materials,ceramic parts, ceramic components, Lithaiwa

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