Glossar
Phase Angle δ
The phase angle δ is a relative measure of the viscous and elastic properties of a material.It ranges from 0° for a fully elastic material to 90° for a fully viscous material. It can be considered the “degree of fluidity”.
![](https://analyzing-testing.netzsch.com/_Resources/Persistent/4/8/8/c/488c2fe56d1717b660719fbf3245ff31feb9b77e/csm_tan_delta_f6c86082c2-600x465.webp)
![](https://analyzing-testing.netzsch.com/_Resources/Persistent/8/1/0/7/81071b5f6fe86b53f85b55b97a2222d6d296e75f/web_AdobeStock_296563182-1277x719-1277x719.webp)
Glossar
The phase angle δ is a relative measure of the viscous and elastic properties of a material.It ranges from 0° for a fully elastic material to 90° for a fully viscous material. It can be considered the “degree of fluidity”.