From: thoms1991 (thoms1991@hotmail.com)
Date: Fri Jan 10 2003 - 20:17:03 EET
Not if you were to post heat treat the "composite" to homogenize the
structure.
----- Original Message -----
From: <magnum777@mail.ru>
To: "thoms1991" <thoms1991@hotmail.com>
Cc: <rp-ml@rapid.lpt.fi>
Sent: Friday, January 10, 2003 11:51 AM
Subject: Re[2]: Ceramic sintering - binaries
>
> 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.
>
> Yakovlev Artem,
> 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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