About the Noble Metal Alloys Model Library Property Models
These Noble Metal Alloys Models are available with the Property Model Calculator and as part of the Noble Metal Alloys Model Library.
The General Models are available to all users. To run calculations with the Noble Metal Alloys Models (as part of the Noble Metal Alloys Model Library) requires a valid maintenance license plus a license for the TCNOBL (version 3 and newer) database.

The Optical Properties - Noble Property Model, available with the Property Model Calculator and the Noble Metal Alloys Model Library, is used to simulate the color, reflection, and transmission of light, based on modeling the alloy microstructure and the resulting optical properties. This model is currently applicable for the Au-Al-Ag-Cu-Pt system.
See About the Optical Properties - Noble Metals Property Model and Optical Properties - Noble Metals Property Model Settings for background theory and input parameter details.