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·Alumina Coated Sources
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Alumina Coated Sources
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Alumina coated evaporation sources have been developed to replace alumina crucibles for some specific applications. The advantages of this type of evaporation source is good heat transfer and the inertness of alumina with most metals. Also, the evaporant does not wet the alumina resulting in no resistant change of the boat when the evaporant melts. Due to the non wetting characteristics of alumina, the evaporant forms a sphere when melted resulting in a point source. This type of evaporation source will give long life compared to the non protected sources. Coated sources will require from thirty to fifty percent more power to effect an evaporation do to the difference in heat conduction. The alumina is semi-conductor grade and is applied to the boat or basket by a plasma spray technique. Temperatures of 1850 degrees C should be avoided, and when an evaporation is effected the power should be reduced slightly to avoid over heating.


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S29-AO-Mo 1.41 220 310 1200C Please login first
S29-AO-W 1.34 294 394 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S35A-AO-Mo 1.05 144 151 1200C Please login first
S35A-AO-W 0.95 136 129 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S35B-AO-Mo 0.9 137 123 1200C Please login first
S35B-AO-W 0.89 130 116 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S36-AO-Mo 1.34 289 387 1200C Please login first
S36-AO-W 1.25 268 335 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S37-AO-Mo 1.23 326 401 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S38A-AO-Mo 1.22 181 221 1200C Please login first
S38A-AO-W 1.2 169 203 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S38B-AO-Mo 1.04 167 174 1200C Please login first
S38B-AO-W 1.04 156 162 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S42B-AO-Mo 1.35 262 354 1200C Please login first
S42B-AO-W 1.41 245 345 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S45B-AO-Mo 1.27 264 335 1200C Please login first
S45B-AO-W 1.43 264 378 1200C Please login first


Part Numbers:
Part #: Volts: Amps: Watts: Temp: Price/unit:
S51-AO-MO 0.94 287 270 1200 Please login first

   

     
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RD Mathis Company, 2840 Gundry Ave, Signal Hill, Ca 90755, F(562)595-0907
email: info@rdmathis.com