| abstract |
A kind of preparation method of the zinc oxide piezoresistor ceramic of Universal electric function admirable, formula components include zinc oxide ZnO, bismuth oxide Bi 2 O 3 , manganese dioxide MnO 2 , antimony oxide Sb 2 O 3 , cobalt sesquioxide Co 2 O 3 , silica SiO 2 , aluminium oxide Al 2 O 3 , yttria Y 2 O 3 , chromium oxide Cr 2 O 3 .Advantage is：Leakage current is inhibited；The common addition of Al and Y element make the ageing properties of the ZnO varistor of this formula making more stablize, and eliminate the unstable shortcoming of the next varistor ageing properties of simple addition Al ion bands. |