[SI-LIST] Re: relative magnetic permeability of tungsten, molybdenum... provinghard to find
- From: "D G" <dgun@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 07 Nov 2003 06:52:25 +0800
Did you try http://www.matweb.com/ ?
--
Daniel
From: "WALKER, Mark" <mark.walker@xxxxxxxxxxxxxxxx>
> All, can you help me out with the relative magnetic permeability of a few
> conductors?
>
> I've spent most of the afternoon using google and searching through the
> numerous engineering, physics & chemistry handbooks in our library, all to
> no avail. I'm looking at materials used for MCM conductors plus a few others
> for comparison, with a view to analysing the effects on multi-gigabit serial
> link type signals.
>
> Ideally, I'd like to complete the following list for relative magnetic
> permeability, Ur:
>
> copper, Ur = 1.
> gold
> molybdenum
> tungsten
> nickel, Ur in the range 5 to 20 (assume 10) at 1 GHz (see Johnson & Graham,
> black magic 2, p267).
>
> However, even if such figures are forthcoming, are they close enough to the
> paste like compounds used for MCM conductors?
>
> Cheers,
> Mark.
>
> Stevenage,
> England.
--
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