rppearso said:Does anyone know of any good materials to make pipe out of that can withstand around 200 psig, 250 F and is completely non conductive? Would also be nice if it was durable to external bumps and drops as well. Was thinking carbon fiber but that won't handle high temperature.
ChaseRLewis73 said:Those specs aren't that high, your looking for either a 'high temp' polymer like teflon (they don't melt until 350-450F typically) or a ceramic.
You can also just use normal pipe with an insulating wrap depending on your need. That would probably be cheapest. Next step is teflon coated pipe then after that reinforced hightemp polymer hose.
Have to know more info to give better idea.
rppearso said:It absolutly can not be a conductor, I am going to run different experements with varoius gases at high temperatures using electricity.
Is the polymer hose ridgid or can it be made rigid? Do they make high pressure ceramic piping? Is ceramic durable?
Enthalpy said:PTFE would be very bad because it creeps horribly, even a moderate stress and room temperature.
Many plastics would perform properly at +120°C and that little pressure. Don't overkill because heat resistance is what makes plastics expensive - and they can be VERY expensive. Have a look at Matweb and Goodfellow for instance, or better, at plastic manufacturers.
One other solution is just glass. Some chemistry labs still have a craftsman capable of manufacturing any shape - or choose among existing hardware, for instance at a chemistry provider, as you'll probably find an acceptable shape among the many existing ones. With some wall thickness, 17b is easy to withstand.
Carbon fibres conduct electricity. Glass fibres would not but their resin isn't very inert and may react with you gas.
Enthalpy said:Nothing against, except things like fused silica cost an awful lot... It's made from selected quartz crystals, you know?
The cheap ceramic is glass (together with porcelain and a few more).
Enthalpy said:If you want to avoid contamination, which may well be the case for gas lasers, fused silica may be better, as it is cleaner than glass. But watch the cost!
High strength high temp rated non conductive materials are materials that have the ability to withstand high temperatures and have strong mechanical properties while also being non-conductive to electricity.
These materials are commonly used in industries such as aerospace, automotive, electronics, and energy. They are also used in various high temperature applications such as furnace linings, heat shields, and insulation.
Some examples include ceramic materials like alumina and zirconia, high temperature polymers like polyimides and PEEK, and composite materials like carbon fiber reinforced polymers.
Some advantages include their ability to withstand extreme temperatures without losing their mechanical properties, their non-conductive nature which makes them suitable for use in electrical systems, and their lightweight and corrosion-resistant properties.
Some limitations include their high cost compared to traditional materials, their brittleness at high temperatures, and their potential for thermal expansion mismatch with other materials in a system.