Absorption coefficient of aluminium for microwaves

[Chromosom]

I am looking for an exact value of absorption coefficient of aluminium for microwaves, but I can not find it in the internet. Anyone knows where I can find it?

 

[marcusl]

Are you aware that, since aluminum is highly conductive, it mostly reflects rather than absorbs microwaves?

 

[davenn]

apart from what Marcusl said, and I agree with,

if you need an exact value ... then what is the exact frequency of the microwave radiation
absorption amount will change with frequency for any substance

Dave

 

[johnbbahm]

While the absorption may be difficult to find the reflectance is not,
So since the broad spectrum microwave reflectance is above 97%,
We can infer any possible absorption is less than 3%.
http://www.npl.co.uk/science-+-technology/optical-radiation-and-photonics/optical-characterisation-of-materials/aluminium-reflectance-spectrum

 

[sardar]

I understand your frustration in trying to find an exact value for the absorption coefficient of aluminium for microwaves. This information can be difficult to find because it is dependent on various factors such as the thickness and purity of the aluminium, the frequency of the microwaves, and the temperature of the material. Additionally, the absorption coefficient can also vary depending on the specific method used for measurement.

One reliable source for this information is scientific literature, such as journal articles or textbooks, which often provide specific values for the absorption coefficient of aluminium for microwaves. Another option would be to contact a research institution or laboratory that specializes in this area of study, as they may have the necessary equipment and knowledge to accurately measure and provide this information.

It is important to note that while having an exact value for the absorption coefficient may be desirable, it is also important to consider the range of values that may be applicable for a given experiment or application. As a scientist, it is always important to critically evaluate and consider multiple sources of information to ensure accurate and reliable results.