aluminum nitride (AlN) And alumina (Al2O3) yesdeep ultraviolet UVC-LEDCommon bracket materials, Apart from the difference in materials, The difference in preparation process can also lead to its appearance, color, There is a significant difference in thermal conductivity coefficient. Detailed comparison can be seen in the following figure.
It should be noted that, AlN Ceramics are black in color, Aluminum oxide ceramics have white color, grey, Three types of black.