100kv High Voltage Vacuum Power Feedthrough Ceramic to Metal Seal with CF Flange for X-ray and Uhv Equipment

Product Description

The power feedthrough with a CF CF-type vacuum flanged fitting. It is an electrical feedthrough and conveys high-voltage, high-amperage power into high-vacuum environments for operating heating coils in sputtering, coating, and other demanding material evaporation applications or experiments.

Feedthroughs (also known as vacuum feedthroughs) come in various forms to transfer electrical currents, signals, fluids, gases, or mechanical movements from the outside (air side) to the inside (vacuum side) of a vacuum chamber, thereby connecting equipment within the chamber. The entry point for the feedthrough must be vacuum-sealed via a suitable through hole. The feedthrough can be weldable (weld-on) or connected with a CF, KF, or ISO vacuum flange to the vacuum chamber.

Typical Applications
* Industrial Heaters
* Terminating Power Cables
* Isolating Other High Heat or Power Sources

General Specifications:
Working Voltage	Up to 100KV
Current Rating	Up to 1000A
Vacuum Rating	Better than 1×10-9 mbar litre sec-1
Operating Temperature	-270°C to 450°C
Flange Mouting	CF

Alumina Ceramic Properties
Properties	Units		Alumina Ceramic
Purity	wt%		95%	99%	99.8%
Volume Density	g/cm3		3.65	3.8	≥3.89
Water Absorption	%		0	0	0
Crystal Size (Grain Size)	μm		4-5	4-5	4-5
Vickers Hardness, HV1.0	Gpa		14	1600	≥15
Flexural Strength	Mpa		300	310	≥300
Coefficient of Linear Expansion	20-500℃	1x10-6 mm/℃	6.5-7.5	6.5-7.5	6.5~7.5
	20-800℃		6.5-8.0	6.5-8.0	6.5~8.0
Thermal Conductivity	W/m·K( 20℃)		20	25	≥20.9
Specific Heat Capacity	KJ/(kg·K)		≥0.8	≥0.8	≥0.8
Dielectric Strength	KV/mm		≥12	15*106	≥12
Volume Resistivity	Ω·cm 20℃		≥1014	≥1014	≥1014
	Ω·cm 300℃		≥1011	≥1011	≥1011
	Ω·cm 500℃		≥109	≥109	≥109
Dielectric Constant	1MHz		9	9-10	9-10
Tangent of Dielectric Loss	1MHz		≤4x10-4	≤2x10-4	≤3x10-4
Surface Roughness	μm		0.4 After Machine	0.1-0.4 After Machine	0.1-0.4 After Machine
Max Working Temperature	℃		1600	1600	1650