Best Microwave Susceptor

spacifique1

18th September 2007 - 04:26 AM

Any idea on what would be the material which absorbs microwaves best. I read somewhere about some guy using magnetite and being able to make it glow red... any truth in that?

Thanks.

Laserlight

19th September 2007 - 03:57 AM

Depending upon the chemistry and the application, silicon carbide.

http://www.coorstek.com/semi.asp

spacifique1

19th September 2007 - 08:50 PM

Thanks. Indeed, an amazing product as the company claims.

Ron

19th September 2007 - 10:19 PM

Hi S1, Laserlight,
My experience is in Microwave communications and when dealing with 'absorbing' energy, it becomes a matter of terminating that energy to the characteristic impedance of the system. I personally used tapered waveguide that would terminate the signal (in this case 50 Ohms). No reflection, no wasted energy, and , If I remember correctly, they could be made to dissipate very high powers with very low loss (heat and power).
Just another point of view.
Peace,
Ron

PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.