Auer Lighting borosilicate glass SUPRAX® 8488 is a suitable material for microwave applications, e.g. as a lamp cover glass.
The measurement below shows the half-value layer for SUPRAX® 8488, a special borosilicate glass from Auer Lighting. The half-value layer is a widely used indicated value for microwave properties. It describes the depth in an absorbing material at which the power of a propagating TEM (Transversal Electro Magnetic) wave is reduced to 50% of its initial value by deposition as heat. The measurement covers the temperature range from 25 °C to 400 °C and has been taken at 2.466 GHz.
|Temperature||20 °C||400 °C|
|Dielectric constant ε’||5.1 ± 0.1||5.7 ± 0.1|
|Dissipation factor ε’’||0.050 ± 0.005||0.26 ± 0.03|
|Loss tangent||0.010 ± 0.001||0.045 ± 0.004|
|TEM half-value layer (mm)||610 ± 50||125 ± 10|
For a thin window, the fraction of the travelling wave power deposited in the window can be simply estimated by:
0.693 · window thickness
PowerFraction ≈ ____________________________
For a 3 mm thick SUPRAX® 8488 window at 20°C this gives a power deposition of ~0.3% of the magnetron output power.
In every case it is still in responsibility of the manufacturer of the microwave oven to design the product in a safe way. He has to take care for avoiding hot spots in the complete system, which will damage every glass material.
This is an overview of all cookies used on this website. Please make your individual settings. You can adapt them at any time by using the "Cookie settings" link in the footer of this website.
These cookies are essential to the operation of the website, e.g. by saving your cookie settings.
|Purpose||Saves the visitor's settings|
Tools collecting usage data anonymoulsy, giving insights into how to improve our services for you.
|Purpose||Google cookie for website analyses. Creates statistical data on website usage.|
|Purpose||etracker cookie for website analyses. Creates statistical data on website usage.|
Tools enhancing the browsing exerience, e.g. maps or videos.
|Purpose||Used to unlock Youtube contents.|
|Identifier||yt-remote-fast-check-period, yt-remote-session-app, yt-remote-session-name|
|Purpose||Used to unlock Google Maps contents.|
|Purpose||Used to unlock Vimeo contents.|