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Molybdenum Crucibles for E-Beam Sources

Overview

  • Custom sizes available upon request.
  • Refractory metal crucibles can be good alternatives for other carbon based crucibles where there are concerns with trace carbon contamination.

Common Causes of Crucible Breakage

  1. The ramp/soak levels are wrong for that material. A recipe for e-beam consists usually of two ramp/soak power levels. This allows for the gradual heating of the material to a point where deposition can start. When deposition starts there is a transfer of power control from the ramp/soaks to a PID loop control between the e-gun power supply and the quartz crystal controller. If ramp2/soak2 power level is not near the power level to hit the specified deposition rate (say 1 Angstrom/sec) this means the PID loop must try very hard or search very hard to try and get rate. Since the PID loop is in control of the power, power can oscillate dramatically (+90% to 0%) for a while before the PID loop finally gets the power at the right level to control at that 1 Angstrom/sec rate. Wild swings in power rapidly liquefy and then condense the material several times even before the deposition starts. This will crack any crucible. It is best to get the ramp2/soak 2 power level very close to the power needed to hit the desired rate. This way when the PID loop takes over control, it does not need to adjust power that much to hit rate - just a slight tweak. This prevents this rapid liquefy/condense process from occurring. So incorrect Ramp levels can definitely cause crucible cracking.

  2. The second reason is much easier - the user shuts the power supply off or has a very short ramp down time for power after the deposition is done. This causes the rapid solidification of the melt, and this stresses out the crucible liner.


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Material Deposition Chart
The Material Deposition Chart is useful to determine the optimum vacuum deposition technique, thermal source, and power supply requirements.
Evaporation Sources FAQ
Click here for answers to some of the most common questions we are asked.
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Molybdenum E Beam Crucibles


Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 4 Use 2.1 cc as the liner volume value in the calculator above 2.1 MOLYBDENUM CRUCIBLE LINER, 0.885" TOP OD X 0.595" HIGH X 0.093" WALL, 15 DEGREE WALL, 1/PKG, 4CC POCKET VOL, 2.1CC LINER VOL EVCEB-22MO $108.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 7 Use 4.4 cc as the liner volume value in the calculator above 4.4 MOLYBDENUM CRUCIBLE LINER, 1.167" TOP OD X 0.563" HIGH X 0.093" WALL, 15 DEGREE WALL ANGLE, 7CC POCKET VOL, 4.4CC LINER VOL, +0/-0.005" ALL EVCEB-4MO $78.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 15 Use 8.2 cc as the liner volume value in the calculator above 8.2 MOLYBDENUM CRUCIBLE LINER, 1.48" TOP OD X 0.67" HIGH, 0.125" WALL THICKNESS, 15 DEGREE WALL, 1/PKG 15CC POCKET VOL, 8.2CC LINER VOL, +0/-0.005" ALL EVCEB-13MO $111.00 Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 25 (4 Pocket) Use 12.8 cc as the liner volume value in the calculator above 12.8 MOLYBDENUM CRUCIBLE LINER, 1.85" TOP OD X 0.68" HIGH, 0.125" WALL, 15 DEGREE WALL, 4 POCKET, 25CC POCKET VOL, 12.8CC LINER VOL EVCEB-16MMO $158.00 Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 25 (6 Pocket) Use 14.0 cc as the liner volume value in the calculator above 14.0 MOLYBDENUM CRUCIBLE LINER, 1.633" TOP OD X 0.940" HIGH X 0.125" WALL, 15 DEGREE WALL ANGLE, 6 POCKET, 25CC POCKET VOL, 14CC LINER VOL, +0/-0.005" ALL EVCEB-25MMO $194.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 30 (With Web) Use 21.9 cc as the liner volume value in the calculator above 21.9 MOLYBDENUM CRUCIBLE LINER, 1.92" TOP OD X 0.81" HIGH X 0.093" WALL THICKNESS, 15 DEGREE WALL ANGLE, W/ WEB, 30CC POCKET VOL, 21.9CC LINER VOL, +0/-0.005" ALL EVCEB-26MO P.O.R. Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 30 (Without Web) Use 18.5 cc as the liner volume value in the calculator above 18.5 MOLYBDENUM CRUCIBLE LINER, 1.775" TOP OD X 1.271 BOD X 0.94" H X 0.125" WALL THK, 15 DEGREE WALL, W/O WEB 30CC POCKET VOL, 18.5CC LINER VOL, +0/-0.005" ALL EVCEB-9MMO $223.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 40 Use 17.0 cc as the liner volume value in the calculator above 17.0 MOLYBDENUM CRUCIBLE LINER, 2.030" TOP OD X 1.020" H X 0.250" WALL THICKNESS, 15 DEGREE WALL, 40CC POCKET VOL, 17CC LINER VOL, +0/-0.005" ALL EVCEB-6MMO $204.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 7 Use 3.7 cc as the liner volume value in the calculator above 3.7 MOLYBDENUM CRUCIBLE LINER, 1.125" TOP OD X 0.520" HIGH, 0.093" WALL, 15 DEGREE WALL ANGLE, 7CC POCKET VOL, 3.7CC LINER VOL, +0/-0.005" ALL EVCEB-23MO $119.00 Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 25 (6 Pocket) Use 16.3 cc as the liner volume value in the calculator above 16.3 MOLYBDENUM CRUCIBLE LINER, 1.633" TOD x 0.940" HIGH, 0.093" WALL, 15 DEG WALL ANGLE, 25CC PKT VOL (6 PKT), 16.3CC LNR VOL, +0/-0.005" ALL EVCEB-25MO P.O.R. In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 20 Use 14.6 cc as the liner volume value in the calculator above 14.6 MOLYBDENUM CRUCIBLE LINER, 1.673" TOP OD X 0.768" HIGH X 0.093" WALL, 15 DEGREE WALL ANGLE, 20CC POCKET VOL, 14.6CC LINER VOL EVCEB-29MO P.O.R. Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 4 Use 1.6 cc as the liner volume value in the calculator above 1.6 MOLYBDENUM CRUCIBLE LINER, 0.846" TOP OD X 0.689" HIGH X 0.093" WALL, 15 DEGREE WALL ANGLE, 4CC POCKET VOL (EDWARDS/TEMESCAL EB3), 1.6CC LINER VOL EVCEB-30MO $139.00 Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 12 Use 5.6 cc as the liner volume value in the calculator above 5.6 MOLYBDENUM CRUCIBLE LINER, 1.350" TOP OD X 0.680" HIGH X 0.125" WALL, 15 DEGREE WALL ANGLE, 12CC POCKET VOL, 5.6CC LINER VOL EVCEB-31MO P.O.R. Contact KJLC for Availability

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 12 Use 7.4 cc as the liner volume value in the calculator above 7.4 MOLYBDENUM CRUCIBLE LINER, 1.334" TOP OD X 0.768" HIGH X 15 DEGREE WALL ANGLE, 0.093" WALL THICKNESS EVCEB-33MO $142.00 In Stock

Molybdenum E-Beam Crucibles

Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Reference Pocket Volume Liner Volume (cc) Description Part Number Price In Stock Add To Cart
Molybdenum 40 Use 27.2 cc as the liner volume value in the calculator above 27.2 MOLYBDENUM CRUCIBLE LINER 2.030" TOP OD X 1.020" H X 0.125" WALL THICKNESS, 15 DEGREE WALL, +0/-0.005" ALL EVCEB-6MO P.O.R. Contact KJLC for Availability
Contact Us - Molybdenum Crucibles for E-Beam Sources


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