Thanks for all the comments!
I should have been a little clearer. The material will not be porous - during use it will bear a load of up to several hundred tons over a few square milimeters. The exterior will be in contact with WC ceramic (cobalt binder) that applies the load. The interior...
I work in high pressure chemical synthesis, using the
same techniques as are used in industrial diamond making. I'm helping
to put together a review article about temperature control in these
experiments.
Over the years it has been common practice to use coloring dopants
(e.g. Cr2O3) to...