I Finally Tried Piezoelectric Ceramic Sensor For A Week And This Is What Happened
Low-temperature sintering of piezoelectric transducer began in the late 1960s.Conducted a preliminary study on the reduction in the sintering temperature of the PZT piezoelectric materials after the addition of components in 1968. By the late 1970s, Japan's S. Takahashi studied the low-temperature sintering characteristics of PbF2-NaF piezo transducer sound added to PZT, the sintering temperature can be reduced to 800°C. Since the 1980s, scholars at home and abroad conducted extensive research on the low-temperature sintering of resonant frequency piezo piezoelectric ceramics.In 1981, United States D. E. Whittmer PZT piezoelectric ceramic materials are doped with V2O5 and the use of chemical coprecipitation powder, the sintering temperature of soldering PZT piezo discs is from 1280 to 960 DEG C. In 1986, the Motorola company S.Y. Cheng et al. Studing the addition of low melting point Li2CO3, Na2CO3, B2O3 and Bi2O3 to PZTN (niobium lead zirconate titanate) is to obtain piezo disc datasheet that is more practical low-temperature sintering material formulations and theoretically explained its low-temperature sintering Mechanism.In 1985, Li Long et al. Of Tsinghua University added B-Bd-Cd low-melting glass frit to the binary system of PZT and developed a material formulation with good performance sintered at 960℃. And developing PNN-PZT piezo disc pickup (niobium nickel-lead zirconate titanate) ternary system and PMN-PNN-PZT quaternary system with low-temperature sintering additives such as CdO and SiO2 .Piezoelectric materials not only reduce the sintering temperature about 300 ~ 400 ℃, but also improve the electrode piezoelectric disc properties.Among them, the laminated piezoelectric transformer is made of low-temperature sintered PZT binary .piezoelectric ceramics has been put into practical application . In 1992, South China University of Science and Technology, Xiong Maoren et al is the use of the fourth component of the temperature-modified PZT -BiFeO3-MCX (where M is Ba2 +, Sr2 +, Pb2 +, X is Nb5 +, W6 +, C is Cu 2+) quaternary piezoelectric materials have been studied, and obtained excellent performance and practical value of low temperature sintering piezoelectric ceramic material formulations.In recent years, from the formula and process on the modified PZT piezoelectric Ceramic materials, low-temperature sintering technology of piezo cylinder generator has been systematically studied, not only to optimize the material formulation and process to obtain high-voltage piezoelectric properties of low-temperature piezoelectric materials, and materials are the zirconium-titanium ratio, substitution and doping modification. Technology and many other factors on the PZT is to achieve the impact of low-temperature sintering that has a new knowledge.