| 摘要 |
PURPOSE:To prevent foul, discolaration and deterioration of ceramics by mounting ceramics provided with electrodes on the heat resisting wire gauze whose surface is formed by the thermal spraying layer of heat resisting ceramics and by performing heat treatment in the annealing furnace of electrode. CONSTITUTION:The stainless steel wire gauze of 10 mesh is used, on which spinel (HgAl2O4) is sprayed with 0.1mm thick by plasma thermal spraying. For the ceramic plate, a disc of piezoelectric material, the constituent of which is Pb0.96Sr0.04(Mg1/3Nb2/3)0.375Ti0.37Zr0.255O3 is used. The silver paste containing frit is printed in a circular form on the disk by screen printing method. When the several ceramic plates manufactured by such a process are arranged on the above wire gauze and are annealed in the mesh belt type tunnel furnace, reactions between the wire gauze and ceramics do not occur at all and the oxidization of wire gauze is prevented by the ceramic material thermally sprayed, which prolongs the life of the metal. |
