Sapphire Thermal Conductivity Vs Temperature

Thermal conductivity on the other hand is a ratio of the flow of heat through a given thickness of material to the temperature difference across this thickness.

Sapphire thermal conductivity vs temperature.

Mechanical chemical thermal and more all listed out in plain english. Sapphire is a very useful optical window material for use in the uv visible and near infra red. Sapphire ir transmission data table 2019. The advantages of sapphire include.

Learn more about the thermal conductivity of sapphire substrates sapphire wafers sapphire properties and crystal structure from valley design. Wood generally conducts better along the grain than across it. Resistivity ohm x cm. 23 0 w m c at 77 c.

13 10 6 c 0 57 µm 20 c. Sapphire is used for its extreme toughness and strength. Good thermal conductivity and high heat resistance. Guild optics is a manufacturer of sapphire substrates.

Single crystal sapphire is used as a material for substrates in super high frequency regions. The properties of sapphire. 40 w m k 298 k. High wear and scratch resistance.

Sapphire al 2 o 3 data sheet sapphire al 2 o 3 sds sapphire al 2 o 3 rough guide. Excellent thermal conductivity at low temperatures allows single crystal sapphire as a transparent material to be used in many diverse fields requiring thermal conduction and heat radiation. Sapphire is a notable example of variable thermal conductivity based on orientation and temperature with 35 w m k along the c axis and 32 w m k along the a axis. Applications applications of sapphire include.

Temperature coefficient of refractive index. Single crystal single crystal sapphire is used for various kinds of vacuum equipment windows in excellent thermal conductivity at low temperatures allows single crystal sapphire as a. 23 1 parallel to optical axis 25 2 perpendicular to optical axis. 4 5 10 6 k 1 and 1000 c.

25 8 w m c at 70 c. Thermal electrical and optical ir transmission vs wavelength 500 c 20 c 1000 c 0 0 2 3 4 5 6 10 20 30 40 50 60 70 80 90 100 wavelengths microns. It turns out that thermal conductivity is directional just like refractive index in all but isotropic isometric or amorphous materials. Excellent optical characteristics uv to ir.

6 66 x 10 6 parallel to optical axis 5 x 10 6 perpendicular to optical axis. Open source for use with acknowledgement. High operating temperature 1800 c chemically inert.