Material Properties Reference

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Hello,

I am working COMSOL Multiphysics 6.3 for quiet a while now and would say I have quiet a bit of experience.

However I have one big issue. I can not get the references for material properties from the COMSOL library. I tried multiple approaches to get that information:

1) As described in the Material Library User guide: In Materials -> Browse Materials -> Select Material and Property. The property reference window just displays no text at all for any material or property I select.

2) Checking in File -> help -> documentation -> Comsol Multiphysics -> Reference Manual -> Materials -> Module-Specific Material Libraries: The source listed here for the piezoelectric materials is the efunda website, which in itself has some books listed but not property specific and non of the books seems to have matching properties to the one COMSOL uses. Some values may be the same but never the set of values I list below. That applies for the CRC Handbook, the MEMS handbook and the Macmillan properties.

3) Checking the online reference manual -> materials -> module specific material databases. There are no sources named for piezoelectric materials and the ones for MEMS are the same as on the efunda webpage but as I said they do not match the values in COMSOL. For example youngs modulus for gold is 70e9 in COMSOL but in the books listed 78e9.

I want references for Youngs Modulus, Poisson ratio and density for: Au, Pd, SiO2 I want references for Coupling matrix, elasticity matric, relative permittivity and density for: Lithium Niobate and Gallium Arsenide

How do I obtain proper sources? Is there a bug in the first option I list? That seems to be the way one is supposed to get that information.

Thanks for any help.


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