Microwave susceptors are suppressed in viscoelastic mediums

  • Thread starter RMN
  • Start date
  • Tags
    microwave
In summary, using widely known microwave susceptors like iron oxide and silicon carbide can be effective in ceramic formulations, but not in silicone rubber. The difference in performance may be due to the resonance and vibration of the materials in the dry ceramic versus the viscoelastic nature of the silicone rubber.
  • #1
RMN
7
1
I am experimenting with some widely known microwave susceptors like iron oxide and silicon carbide (materials that normally convert RF to heat quite effectively).

In ceramic formulations they perform great, as expected.

When formulated in silicone rubber, they do not perform when subjected to identical watts/time in a home microwave, almost nothing. I am seeing less than 1/2 the temperature rise per time in the silicone matrix.

Curious if the good performance of these materials in dry ceramic form could be due to the resonance or vibration of these materials in and against the dry ceramic matrix, and against each other (very frictional) - - and in silicone rubber the medium is rather viscoelastic, so more of the vibrational energy is absorbed by the flexible nature of the medium.
 
Science news on Phys.org
  • #2
Hmmm, guess I finally stumped the Physics Gods ?
 

Related to Microwave susceptors are suppressed in viscoelastic mediums

What are microwave susceptors and how are they suppressed in viscoelastic mediums?

Microwave susceptors are materials that absorb microwave radiation and convert it into heat. In viscoelastic mediums, the movement of molecules in the material causes friction which dissipates the microwave energy, suppressing the presence of susceptors.

Why is the suppression of microwave susceptors important?

The suppression of microwave susceptors is important in materials that are intended for use in microwave ovens or other equipment that uses microwave radiation. This allows for more controlled heating of the material, preventing hot spots and ensuring even cooking or heating.

What types of materials are considered viscoelastic mediums?

Viscoelastic mediums include materials that have both viscous and elastic properties, such as polymers, gels, and certain types of liquids. These materials have the ability to deform and return to their original shape, making them ideal for suppressing microwave susceptors.

Can microwave susceptors be added to viscoelastic mediums?

Yes, microwave susceptors can be added to viscoelastic mediums in order to enhance their heating properties. However, the amount and placement of the susceptors must be carefully controlled in order to prevent uneven heating or damage to the material.

Are there any safety concerns related to the suppression of microwave susceptors in viscoelastic mediums?

No, there are no safety concerns related to the suppression of microwave susceptors in viscoelastic mediums. In fact, it can improve safety by preventing hot spots and ensuring more even heating. However, it is important to follow proper safety precautions when handling any materials that are intended for use in microwave ovens or other equipment that uses microwave radiation.

Similar threads

Replies
7
Views
2K
Replies
16
Views
2K
  • Mechanical Engineering
Replies
10
Views
5K
  • Sci-Fi Writing and World Building
Replies
21
Views
1K
Replies
4
Views
8K
  • Other Physics Topics
Replies
0
Views
764
  • General Discussion
Replies
2
Views
3K
Back
Top