might these be casting porosity? some bronze castings may be very
porous....does this seem reasonable? David Scott
Quoting Ann Feuerbach <[log in to unmask]>:
> Hi all,
> A friend asked me if I can refer them to me any articles explaining
> the Egyptian casting process, particularly the interior bulk metal.
> They have a tomography images of an approx. 14th century BC Egyptian
> gold plated bronze figurine of ISIS, taken using synchrotron
> radiation. They observed the metal bulk and the plaster coating on
> the metal to which the gilding was applied. However, they are also
> seeing lots of circular spheres or voids in the images. They appear
> to be of very low density. The question is what are these and how
> did they occur?
> Any info is greatly appreciated! Thanks in advance!
> All the best,
> Ann
>
> --
> Dr. Ann Feuerbach
> http://www.aasti.info
> http://www.annfeuerbach.com
>
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