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Silver and Ag‐Pd alloy are cofired with BaTiO 3 ‐based dielectrics during the manufacturing of capacitors. The diffusion of silver into BaTiO 3 during sintering is very slow. However, the vapor pressure of silver is high at temperatures greater than the melting point of silver (960°C). The effect of the evaporation of silver during the sintering with BaTiO 3 at 1200°, 1250°, and 1290°C is investigated in the present study. The silver vapor can transport through the pore channel of the dielectrics to a distance of a few hundred micrometers. The melting point of Ag‐Pd alloy is higher than that of silver; therefore, the transportation of silver vapor from Ag‐Pd alloy is hardly observed at temperatures >1200°C.
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Chen et al. (2000) studied this question.
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