Uhv Vacuum
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 perkin elmer varian 600 L s ion vacuum pump uhv mks  US $1,500.00
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 VAT 10840 PE44 005 UHV Vacuum Gate Valve US $1,400.00
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 VAT all metal mini 1 1 3 Conflat UHV high vacuum valve 57024 CE44 US $1,200.00
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 MKS Vacuum Valve UHV 40 AKK ENVN 24D US $199.00
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 New High Voltage Vacuum Feedthrough UHV US $124.99
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 Granville Phillips 350 Fiber RS 232 UHV High Vacuum US $75.00
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 Varian 1 1 3 mini Conflat 4 way cross vacuum UHV flange US $75.00
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 MDC Huntington Vacuum UHV Flange Part Stainless Steel US $59.99
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I'm looking for a cheap, machinable, non porous material to be used in UHV?
We are making a doser to hold a pellet for testing in an ultra high vacuum and we are trying to modify it to include a screw thread. At the moment we are a powder which will not withstand this precision cutting and ceramics tend to be too brittle.
Any suggestions would be much appreciated.
Maybe a Composite material?, often shortened to composites or called composition materials, are engineered or naturally occurring materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct at the macroscopic or microscopic scale within the finished structure.
The reinforcement materials are often fibres but also commonly ground minerals. The various methods described below have been developed to reduce the resin content of the final product, or the fibre content is increased. As a rule of thumb, lay up results in a product containing 60% resin and 40% fibre, whereas vacuum infusion gives a final product with 40% resin and 60% fibre content. The strength of the product is greatly dependent on this ratio.
A more expensive alternative could be carbon fiber composite ?
To make the fibers, the researchers used a method pioneered by Windle's group in 2004 in which a furnace vaporizes carbon and blows out a stream of nanotubes. When these carbon nanotubes are captured in midair and spun around a spool, they form a fiber composed of billions of the molecules aligned along the length of the nanotube. A lone, extremely strong nanotube fiber was off the charts, reaching nine gigapascals of stress--far beyond any other reported material--before breaking. Earlier work with carbon nanotubes has produced fibers that withstand at most three gigapascals.
Explore~
The UHV Kelvin Probe
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