抄録
A Cu-P-Y-O composite oxide compact with a specified composition (denoted as CPY) is an excellent material for humidity sensor. As for how water vapor accesses to the surfaces of a disk-shaped CPY were studied, and it was found that water vapor accessed to the surfaces of CPY mainly through the electrode layer. Also, the relation of pasty electrode material with the humidity characteristic was investigated, and it follows that the type of paste affected strongly not only the humidity characteristic but also the adhesive strength between the electrodes and the surfaces of a CPY disk.
