Educational Blog Spot

        Make an electrode (Powder) material pallet by taking 250mg of powder at 5 tonnes. But first, take 270mg pure Powder and add 5% PVP to prepare the powder.       After pressing put in the oven at 1250 o C for 4hr by wrapping in the pure powder. And then again repeat the same step by flipping the side of the pallet.       Make the device for testing.        Pallet size(diameter) is nearly 11mm after firing. Before firring it is 13mm.       Four probes (gold wires) must be mounted at a 2mm distance.       Then place the device by putting it on the shaft in the oven and set the temperature at 850 o C.       Then start the measurement for (850 => 150) o C with step size of 30 o C.       Turning on the multimeter and applying the current as 5mA, 10mA, and 20mA. Then wait for 15 minutes...

  Area Calculation By ImageJ      Open the Software      File => Open       Zoom in the Image and select the straight line        Mark the small line on graph and go to analyse => set scale      Set known distance 01, unit cm and click ok       Go to free hand and cover the area you want to calculate       Then press (ctrl + m) repeat the process for 3 time       After that go to the result and summarize 

  Activation Energy ·          Click on the curve, go to analysis, fitting, and linear fit ·          Note the slope and error ·          Then follow the Formula to find activation energy              Ea =  mRln(10)1000 m= slope, R= 8.6173*10 -5 eV/K , ln(10) = 2.303

  ASR          For ASR first find polarization resistance (Final Point of EIS on Horizontal (Total Resistance) - Initial Point of EIS on Horizontal (Ohmic Resistance)).        Then make columns polarization resistance and corresponding temperature.       Change temperature to Kalvin and find 1000/T.  X-AXIS        Divide Polarization resistance by 2 (ASR).  Y-AXIS        Convert Y-axis type to Log-10 and Rescale it CTRL+R       Then Layer management and add top x-axis linked to y-axis        Double click top x-axis add values from 900 to 500 and change type to offset reciprocal.

EIS          Open the Origon and import the ASCI file          multiply real and imaginary impedance columns with electrode(cathode) area then plot real impedance on X and imaginary on Y-axis.       Set the X-axis values       Start Y-axis from zero and end at (X-axis final value – X-axis initial value )/2.        Divide y-axis with -1 to reverse it.        Make the graph as square       In order to add any line, go to the top bar then graph then add a straight line.        Multiple graphs can be opened in a single window by using the plot setup option by double-clicking on the graph the option of plot setup will appear