Who can carry this rotor Mazenauer

[Gaston]

From what we see on the net, these eutectic ceramics based on refractory oxides are promising but still objects of upstream laboratory studies.

Furthermore, their main characteristic is not solidity, but the ability to withstand high temperatures.

As for "centripetal energy"

[ARMAND]

If you prefer a generic term: the "turbine" should be made with the material used to make the moving parts of the jet engines, here it is .... ie ceramic ...

Centrifugal force is a result of centripetal force, it is not strictly speaking a force ...

[Flytox]

If you prefer a generic term: the "turbine" should be made with the material in use to make the moving parts of aircraft reactors, that's it .... ie ceramic ...

The most advanced aeronautical turbine blades in service today ... are Nickel bases. For the moment nobody knows how to make them that hold the minimum required in ceramic. Do not confuse ceramic coatings and blade material.

http://www.c-mgroup.com/vacuum_melt_ind ... ase_sx.htm

[elephant]

Well, I may have missed an episode, but what is the point of wondering what materials to make it if we do not even have a model that proves that it works?

Last detail: isn't the limit of a turbine when its periphery reaches the speed of sound?

[wirbelwind262]

Last detail: isn't the limit of a turbine when its periphery reaches the speed of sound?

Fortunately not, http://www.airliners.net/aviation-forum ... in/156501/
but it is more problematic for conventional propellers, it makes an unbearable volume see http://en.wikipedia.org/wiki/Republic_XF-84H#Noise

[Exnihiloest]

Armand, I am also annoyed by the fact that scientists refuse to talk about centrifugal force, popular term.

This is because scientists speak as unambiguously as possible. A force is an interaction between 2 objects. Centrifugal "force" does not meet this definition.
It is only a fictitious force felt from a non-inertial frame of reference (ie at variable speed), as is gravity ("force" of gravity). We will therefore rather speak of centrifugal acceleration as we speak of acceleration of gravity (g).
If we turn, standing on a disc, our speed is not constant since it changes direction, so the acceleration which is the variation of the speed, is not zero. The acceleration, radial, to which we are subjected gives us the impression of a force, as we feel the same way our weight under the effect of gravity, it also an acceleration.

As for the centripetal force http://fr.wikipedia.org/wiki/Force_centrip%C3%A8te and could be defined as " force to prevent rotation of objects f ... camp "
There are therefore applied to a rotating body around an axis a centripetal force to compensate for swerve centrifugal.

To keep the analogy with the acceleration of gravity, the reaction force of the ground which prevents us from falling lower is the equivalent of this centripetal force which prevents us from being ejected by centrifugal acceleration.