Graphite E Beam Crucibles

Overview of High-Purity Graphite Crucibles for E-Beam Evaporation

Graphite e-beam crucibles are used as liners between an evaporation source material and the water-cooled hearth. Select the graphite grade and crucible geometry for the source material, equipment dimensions, and operating conditions. Deposition behavior and service life must be evaluated for the specific process.

Benefits of High-Purity Graphite Crucibles

Heat transfer and geometry: A graphite liner contains the source material and separates it from the hearth. Heat flow depends on the graphite grade, liner geometry, source material, and operating conditions; a deposition-rate or power benefit cannot be assumed for every system.
Purity: Graphite grades and purification routes have different impurity profiles. If contamination limits matter, specify the required grade and request lot-specific analysis or a certificate of analysis for review.
Service life: Reuse depends on the evaporation material, thermal cycling, operating settings, and handling. Inspect each liner for cracks, deposits, or other damage before reuse; no general cycle life is implied.
Material suitability: Confirm compatibility with the intended source material, temperature, atmosphere, and e-beam system before use.
Customization: Use the model dimensions and drawings below as a starting point. Confirm cavity, wall, lip, and overall dimensions against the equipment drawing or a reference sample before ordering.

Material note: Graphite and vitreous carbon are distinct liner materials; suitability should be assessed for the specific evaporation process.

Common Causes of Crucible Breakage

Crucible life depends on the source material, heating and cooling cycle, and handling. Review the equipment manufacturer’s operating guidance and inspect the liner between runs.

Ramp and soak settings

Rapid or unstable power changes can create thermal stress. Use ramp and soak settings validated for the source material and e-beam system.

Cooling and shutdown

Sudden cooling or solidification may stress a liner. Follow the equipment and process guidance for ramp-down, and check for cracks or adhered deposits before reuse.

Graphite E Beam Crucibles

Item No.	Angle	Drawing	Capacities (mL)	Top Diameter A (mm/inch)	Height B (mm/inch)	Wall Thickness C (mm/inch)	Inquiry
EVCEB-1	angle=30		1	19.1 (0.75")	4.1 (0.16")	1.0 (0.04")
EVCEB-1A	angle=15		1	14.2 (0.56")	9.8 (0.38")	2.4 (0.09")
EVCEB-2	angle=15		2	17.9 (0.71")	11.8 (0.47")	2.4 (0.09")
EVCEB-3	angle=15		3	20.4 (0.81")	13.8 (0.55")	2.4 (0.09")
EVCEB-4	angle=15		4	22.0 (0.87")	14.3 (0.56")	2.4 (0.09")
EVCEB-4A	angle=15		4	22.5 (0.89")	15.1 (0.60")	2.4 (0.09")
EVCEB-7	angle=15		7	29.6 (1.17")	14.3 (0.56")	2.4 (0.09")
EVCEB-7A	angle=15		7	28.6 (1.13")	13.2 (0.52")	2.4 (0.09")
EVCEB-10	angle=15		10	35.2 (1.38")	15.1 (0.59")	2.4 (0.09")
EVCEB-12	angle=15		12	32.5 (1.28")	23.9 (0.94")	2.4 (0.09")
EVCEB-12A	angle=15		12	34.3 (1.35")	17.. (0.68")	3.2 (0.13")
EVCEB-12B	angle=15		12	33.9 (1.33")	19.5 (0.77")	2.4 (0.09")
EVCEB-15	angle=15		15	37.6 (1.48")	17.0 (0.67")	3.2 (0.13")
EVCEB-15A	angle=15		15	37.6 (1.48")	17.0 (0.67")	6.4 (0.25")
EVCEB-16	angle=15		16	41.7 (1.64")	24.6 (0.97")	3.2 (0.13")
EVCEB-20	angle=15		20	42.5 (1.67")	19.5 (0.77")	2.4 (0.09")
EVCEB-25	angle=15		25	47.0 (1.85")	17.3 (0.68")	2.4 (0.09")
EVCEB-25A	angle=15		25	41.5 (1.63")	23.9 (0.94")	2.4 (0.09")
EVCEB-25B	angle=15		25	47.0 (1.85")	17.3 (0.68")	3.2 (0.13")
EVCEB-25C	angle=15		25	41.5 (1.63")	23.9 (0.94")	3.2 (0.13")
EVCEB-30	angle=15		30	45.1 (1.78")	23.9 (0.94")	2.4 (0.09")
EVCEB-30A	angle=15		30	45.1 (1.78")	23.9 (0.94")	6.4 (0.25")
EVCEB-30B	angle=15		30	48.8 (1.92")	20.6 (0.81")	2.4 (0.09")
EVCEB-35	angle=15		35	52.9 (2.08")	19.5 (0.77")	2.4 (0.09")
EVCEB-40	angle=15		40	51.6 (2.03")	25.9 (1.02")	2.4 (0.09")
EVCEB-40A	angle=15		40	51.6 (2.03")	25.9 (1.02")	6.4 (0.25")
EVCEB-40B	angle=15		40	50.8 (2")	27.0 (1.06")	2.4 (0.09")
EVCEB-40C	angle=15		40	50.8 (2")	27.0 (1.06")	6.4 (0.25")
EVCEB-62	angle=15		62	56.2 (2.2")	35.6 (1.4")	2.4 (0.09")
EVCEB-62	angle=15		100	68.6 (2.7")	37.8 (1.49")	2.4 (0.09")
EVCEB-156	angle=15		156	82.6 (3.25")	38.9 (1.53")	6.4 (0.25")
EVCEB-A	angle=15		N/A	23.8 (0.93")	15.1 (0.59")	2.4 (0.09")
EVCEB-B	angle=15		N/A	75.2 (2.96")	39.7 (1.56")	2.4 (0.09")
EVCEB-C	angle=15		N/A	60.7 (2.39")	25.4 (1")	6.4 (0.25")
EVCEB-D	angle=15		N/A	48.0 (1.89")	17.8 (0.7")	3.2 (0.13")