Google: bell jar, vacuum chamber, vacuum sputtering deposition, vacuum evaporation deposition, ion implantation, LPCVD, RF etcher, SEM, TEM, freeze drier.... Might be easier if you state what size, material, or use is to be made of it. Edmund Scientific sells bell jars.
Oh yeh: incandescent light bulbs, a thermos, a vacu-form machine, a car wash with a vacuum system, a dust buster, a vacuum cleaner, a composite materials fabrication facility, any internal combustion engine, a tire pump.... So--almost everywhere in any industrialized nation.
Oh yeh: the human body's pulmonary system and all air-breathing mammals. Oh yeh: vacuum chambers don't explode under vacuum, they implode. Still dangerous... Oh yeh: the world's largest vacuum chamber is in Sandusky Ohio at NASA's Space Power Facility... if you need it.
Depends on what vacuum you need. If you need a very low pressure, then those are expensive and hard to find. If you just need a couple of lbs lowered (from 14.7 psi atmosphere), you can easily build your own with videos on YouTube and Google by using a strong shop vacuum. You can also get a used vacuum pump as lots are left over from former print shops when all printing was mostly lithoes, and now it is all digital
Even many high schools have a small chamber. It is just a matter of how big a chamber you need.
any university that does surface science or has a materials dept.
