[SI-LIST] Re: relative magnetic permeability of tungsten, molybdenum... proving hard to find
- From: steve weir <weirsp@xxxxxxxxxx>
- To: mark.walker@xxxxxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Thu, 06 Nov 2003 13:35:37 -0800
Mark,
You should be able to look those up in "The Electronic Designers
Handbook" McGraw Hill.
Regards,
Steve.
At 05:11 PM 11/6/2003 +0000, WALKER, Mark wrote:
>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,
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