Date: Fri Jan 10 2003 - 18:51:32 EET
I would say that in case of low-melting-point coating (e.g. binary eutectics) the boundary effects between particle core and eutectics/intermetallides coatings could initiate crack propogation and reduce mechanical properties of the compound.
ENISE, St.Etienne, France
| Look at the phase diagrams for your ceramic systems of interest. Then select
| low melting binaries and coat the grains of ceramic with an appropriate
| specie. Analogously, one can sinter nickel powders at a low temperature by
| first coating them with phosphorous, which offers the further advantage of
| being fugitive later under select conditions.
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