Any suggestions for a material that is:
--Machinable with conventional carbide/hss tooling
--Electrically insulating
--Has a coefficient of thermal expansion ideally below 25ppm/degF (~45ppm/degC)
...and then it'd be nice if it...
--costs less than $5/cubic inch in quantities of ~20 cubic inches.
This is a low-voltage device, less than 10V across the part. Macor would work but it's overkill.
It'd be good to discover something less expensive for this application.
--Machinable with conventional carbide/hss tooling
--Electrically insulating
--Has a coefficient of thermal expansion ideally below 25ppm/degF (~45ppm/degC)
...and then it'd be nice if it...
--costs less than $5/cubic inch in quantities of ~20 cubic inches.
This is a low-voltage device, less than 10V across the part. Macor would work but it's overkill.
It'd be good to discover something less expensive for this application.