Nano-phases of ZrO2 doped with Y2O3

This work reports the method of obtaining oxygen sensors by using nano-phases of ZrO2 doped with Y2O3 95% molar in thin layers. In the first phase it is necessary to prepare a substratum based on La1-x Sr30MnO3. This substratum is obtained by grinding powders of base, followed by mixing and then by baking of the product. The nano-phases of ZrO2 doped with Y2O3 95% molar are obtained using solar energy in a solar furnace; in the focus the temperature has value of 3000 deg. C. Such temperatures are enough to realize the process of vapor condensation. The nano-phases obtained will have used in thin layers, representing the active element. This layers are obtained directly through the process of vapor condensation in solar focus or using the spray method. The goal of this work was obtaining oxygen sensors which function at low temperatures (below 300 deg. C), because the sensors which are found on market, operate at a temperature of 800 deg. C. Those sensors are used to obtain a good combustion with engines with internal combustion. (authors)