| 简介 |
The invention relates to a piezoceramic composition with nominal empirical formula Pb 1-a RE b AE c AL d [Zr x Ti y (Fe f Nb n ) k (M m W w ) z ] O 3 , where RE rare-earth metal portion b with a a rare earth metal, an alkali metal and an alkaline earth metal with a alkaline earth metal portion c AE alkali metal portion is d with a AL. Niobium is niobium portion n. k with a, iron and tungsten with a tungsten content with a iron f. k. M at least one from the group is present. z w cobalt, iron, copper, magnesium, manganese, molybdenum, nickel, scandium, zinc and rare earth metal [...], comprising an ionic radius of 0.9 nm smaller, selected additional endowment metal portion m. z with a doping metal. It, the following relationships : a 0 ; y > 0 ; z > 0 ; k > 0 ; + z + k = x + y 1st Alongside it will a method for the production of a piezoceramic component with a piezoceramic material indicated using the piezoceramic composition having the following method steps : a) providing a ceramic green body with the piezoceramic composition and b) heat-treating (calcining or. Sintering) of the green body, wherein from the piezoceramic composition of the piezoceramic material of the component is created. The piezoceramic composition compacted under 1000 °C. Therefore silver or copper together with the piezoceramic can... |
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