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SnO2-based ceramics much industrial areas of concern for its good conductivity, chemical stability, and excellent properties such as, in the industrial and medical thermometer, liquid level control, the determination of liquid flow, and an amplifier power gain amplifier controller, and a solar cell, the conductive target wood and glass refining industry with a wide range of applications. The Sn02 in the high-temperature sintering Sn4, and O2-ions, however, since the diffusion coefficient is very low, SnO2 easily volatilized to generate SnO (g) 1/2O2 (g), such that the sintering characteristics of the pure SnO2 ceramics is very poor. Improve sintering characteristics of SnO2 electrical properties reported more traditional pressureless sintering method chemically prepared composite powder, add the composite sintering aids and special sintering method three. Paper, SPS (Spark Plasma Sintering) sintering, in a lower temperature to complete the sintering process, to overcome the volatilization and decomposition of SnO2 in the high-temperature sintering, and simultaneously by the incorporation of sintering aids to effectively improve the sintering properties and electrical conductivity, thereby obtaining good overall performance SnO2-based ceramics. CuO is a good sintering aids, doping with a small amount of CuO, can significantly improve the sintering properties. With the increase in the amount of CuO doping density and relative density of SnO2-based ceramics showing the trend of increased and then decreased. Sb2O3 doping density and relative density of the SnO2-based ceramics increased slightly, but not obvious. The electrical properties of SnO2-based ceramic material with the the sintering temperature change and CuO doping, changes are not obvious. Sb2O3 doping can significantly improve the electrical properties of SnO2-based ceramics, a small amount of doping that is able to achieve a more obvious effect, be able to get a better overall performance composite doping sample. In this paper, the experimental analysis of the system, determine the pressure 40MPa, heating rate: 200 ° C / min, holding time: 3 minutes as the experiments in this paper the optimum and by changing the doping component content and sintering temperature, in order to obtain performance excellent specimen. At this point, when the CuO doped with 1.0 mol% sintering temperature of 1000 ° C, density and relative density of SnO2-based ceramics, respectively 6.93g · cm-3 and 99.7%. Sb2O3 doping amount of 0.5 mol%, the sintering temperature of 950 ℃, the density of the sample and the relative density of 6.80 g · cm-3, respectively, and 97.21%, while the room temperature resistivity of 2.35 × 10-2Ω · cm. SnO2-1.0CuO-1.0Sb2O3 a sample composition of the material formulation at the sintering temperature to 950 ℃, the relative density of up to 96.2%, a density of up to 6.71 g · cm-3, and the resistivity at room temperature can reach 1.47 × 10 - 2Ω · cm.
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