Hello, Jos.
Ceramics is not my specialty, just happened to get into it a little when
we had (and still have) some strange problems with ceramic components.
Pb seem to be used in a group of ceramics called Relaxor Dielectrics.
Typically these material can be sintered in as low temperatures as 950
degrees Celcius.  Example:

              Pb(Fe2/3 W1/3)O3 - PbZrO3 plus MnO2 with k´>5,000, tan
delta 0.01 and Ris approx 10exp10 Ohm-cm.  
                      O.Iizawa,  S.Fujiwara, H.Ueoka 1980.
There are certainly hundreds of technicians you can call for mor
information. For instance AVX/Kyocera, Coors and many more.

As I said, just happened to get a few lines under my eyes about the
issue. Good luck!
                                //Ingemar Hernefjord
                               Ericsson Microwave Systems


>      Hello,
>      We are using electronic components containing Pb as metal but
also Pb
>      as oxide or Pb-titanate in ceramic components. It is clear to me
that
>      Pb as free metal will be phased out, but is there some (draft)
>      legislation for Pb-compounds in ceramics?
>      Jos
>  
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