Idea for isolation material wanted

Hello,


For an experimental set-up i want to set a hot metal plate in vibrations.

temperature:  ~450 °C
mass of plate: 0.5 kg
frequency:  0-1000 Hz
max. acceration of mass: 150 m/s²

I'm searching for a material for isolating this hot plate from the vibration-excitation by a commercial shaker.

requirements:
1) low thermal conductivity (for isolating)
2) resitence to compression AND torque
3) fatigue strength
4) stiff / high bulk modulus: otherwise the material would act as a spring and wouldn'd transfer the vibrating motion.
5) easy shaping with lathe or milling machine possible

In my opinion polymers like teflon won't be stiff enough to transfer the vibration. I also thought about ceramics but I doupt they can resist vibraitonal stress.


I'm thankfull for your suggestions - best with sorce where i can buy this material in low quantities.


Thanks in advance,

   Bernd



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