alloy needed

tech master 117

Member

• Feb 19, 2016

• #1

Does anyone know any alloy of titanium that can withstand temperatures from plasma as in this work no magnetic field containment can be used?

 

jpanhalt

Well-Known Member

Most Helpful Member

• Feb 20, 2016

• #2

Probably doesn't exist.
https://en.wikipedia.org/wiki/Plasma_(physics)
What temperature is your plasma?

John

 

large_ghostman

Well-Known Member

Most Helpful Member

• Feb 20, 2016

• #3

tech master 117 said:

Does anyone know any alloy of titanium that can withstand temperatures from plasma as in this work no magnetic field containment can be used?

Click to expand...

Why Titanium? If you look online there are many projects from plasma speakers etc and they dont melt the metal, even copper can be used. What exactly have you in mind? Depending on what your doing you might be able to use copper for it.

Its doable https://upload.wikimedia.org/wikipedia/commons/a/ac/Moeller_Plasma.jpg
https://en.wikipedia.org/wiki/Plasma_speaker

Sometimes its just easier to jump in and say it wont work without asking the application and giving it some thought.

 

tech master 117

Member

• Feb 22, 2016

• #4

Actually the temperature is nearly 30000 degree centrigade.

 

S

spec

Well-Known Member

Most Helpful Member

• Feb 22, 2016

• #5

tech master 117 said:

Actually the temperature is nearly 30000 degree centrigade.

Click to expand...

30,000 deg Celsius is one hell of a temperature:

Some info about high temp materials: https://www.electrochem.org/dl/interface/wtr/wtr07/wtr07_p30-36.pdf

 

large_ghostman

Well-Known Member

Most Helpful Member

• Feb 23, 2016

• #6

Whatever the tempreture people still make plasma speakers etc no problem.

 

jpanhalt

Well-Known Member

Most Helpful Member

• Feb 23, 2016

• #7

If we knew more about what you are actually planning, we might be able to offer alternatives to try. For example, in TIG welding, tungsten electrodes are used. The actual welding plasma is quite a bit hotter than the melting point of tungsten, but the electrode doesn't melt, it just wears a bit (ignoring that there are ways to melt the electrode tip to make it rounded).

John

 

S

shortbus=

Well-Known Member

Most Helpful Member

• Feb 23, 2016

• #8

Plasma near that temperature is also present in the EDM process of machining. It is done with synthetic graphite or copper electrodes to remove and shape cavities in steel or other metals. But like the TIG welding John mentioned there is a slight amount of wear to the electrode.

 

tech master 117

Member

• Mar 4, 2016

• #9

Oh now I get it actually it may wear or erode a bit, no problem thanks guys!!!!!!