Close

Please select your country or region to be
directed to the appropriate Lesker site.

Alumina Coated Evaporation Sources

Overview

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°C should be avoided, and when an evaporation is effected the power should be reduced slightly to avoid over heating.

Evaporation Sources FAQ
Click here for answers to some of the most common questions we are asked.
Contact Us
Contact Us
To contact someone directly, please click here, or call +1 412 387 9200 to get in contact with your dedicated sales team.

Please Select a Category:

Dimple

Dimple

Dimple

Dimple

Double-Step

Double-Step

Double-Step

Double-Step

Top-Hat

Top-Hat

Top-Hat

Top-Hat

Trough

Trough

Trough

Trough


Dimple


Half Inch Dimpled Boat

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.21
130
157
1200°C
EVS9AAOMO $59.00
Tungsten
5
1.17
125
146
1200°C
EVS9AAOW $68.00

Three Quarter Inch Dimpled Boat

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.34
201
269
1200°C
EVS9BAOMO $67.00
Tungsten
1
1.29
190
245
1200°C
EVS9BAOW $18.00

One Inch Dimpled Boat

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.14
248
283
1200°C
EVS9CAOMO $73.00
Tungsten
1
1.35
268
362
1200°C
EVS9CAOW $20.00

Deep-Dimple

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.23
326
401
1200°C
EVS37AOMO $89.00

Dimpled Wide

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
1
1.5
586
879
1200°C
EVS9FAOMO $130.00
Tungsten
1
1.4
635
889
1200°C
EVS9FAOW $40.00

Notched Dimple

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.31
253
331
1200°C
EVS8CAOMO $74.00
Tungsten
1
1.27
257
326
1200°C
EVS8CAOW $22.00

Notched Dimple

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
1
1.41
220
310
1200°C
EVS29AOMO $22.00
Tungsten
1
1.34
294
394
1200°C
EVS29AOW $29.00


Double-Step


Double-Step

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
1
1.27
264
336
1200°C
EVS45BAOMO $20.00
Tungsten
1
1.43
264
378
1200°C
EVS45BAOW $26.00


Top-Hat


Inverted Top-Hat Dimpled - Hot Zone Coated

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Molybdenum
5
1.12
141
158
1200°C
Yes
EVS2BAOMO $66.00
Tungsten
1
1.13
141
159
1200°C
Yes
EVS2BAOW $18.00

Inverted Top-Hat Dimpled

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.35
262
354
1200°C
EVS42BAOMO $89.00
Tungsten
1
1.41
245
345
1200°C
EVS42BAOW $28.00

Narrow Trough Top-Hat

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
0.96
105
100
1200°C
EVS1AOMO $81.00
Tungsten
1
1
106
106
1200°C
EVS1AOW $24.00

Top-Hat Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Molybdenum
1
1.22
181
221
1200°C
Yes
EVS38AAOMO $19.00
Tungsten
1
1.2
169
203
1200°C
Yes
EVS38AAOW $20.00

Top-Hat Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
1
1.04
167
174
1200°C
EVS38BAOMO $20.00
Tungsten
1
1.04
156
162
1200°C
EVS38BAOW $21.00


Trough


Flat Trough - Hot Zone Coated

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. Hot Zone
Alumina Coated
PartNo Price Add To
Cart
Molybdenum
5
1.05
144
151
1200°C
Yes
EVS35AAOMO $58.00
Tungsten
5
0.95
135
129
1200°C
Yes
EVS35AAOW $72.00

Flat Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
0.9
137
123
1200°C
EVS35BAOMO $62.00
Tungsten
5
0.89
130
116
1200°C
EVS35BAOW $76.00

Long Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.34
289
387
1200°C
EVS36AOMO $89.00
Tungsten
1
1.25
268
336
1200°C
EVS36AOW $23.00

Notched Long Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
1.34
207
277
1200°C
EVS21AOMO $89.00
Tungsten
1
1.47
204
300
1200°C
EVS21AOW $23.00

Inverted Top-Hat Trough

AI2O3 Coating


Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Description No. Per
Pack
Volt Amps Watts Temp. PartNo Price Add To
Cart
Molybdenum
5
0.79
114
90
1200°C
EVS3AOMO $70.00
Tungsten
5
0.83
117
97
1200°C
EVS3AOW $89.00
Contact Us - Alumina Coated Evaporation Sources


To Top