Description: A ceramic material properties of the grain boundaries and test methods for the test electrode, to a test electrode.Provide grain boundary performance test electrodes and a ceramic material test methods used. Test electrode has a calibration loop, the base electrode and labeled directed graph, the base electrode provided on the calibration loop, the base electrode composed by circular electrode lead wires in a horizontal, vertical and diagonal three directions, the electrodes were arrayed round ; labeled directed graph located around the base electrode. Preparation of CuO-rich ceramic material powder, dry pressed into ceramic discs, insulation, surface treatment, the grain boundary was clear ceramic surface, surface preparation electrodes; measured IV characteristics. Without going through the tedious process of preparation of a single crystal; easy to measure, analyze and compare data in the latter part of the latter experiment was repeated; without using expensive fine probe, by means of an optical microscope, and as long as the measurements can be completed without the aid of AFM; the distance between the thin lines can be According to the size of the sample to adjust the spacing, to facilitate the measurement of various formulations.
DOI: G01N27 / 00 (2006.01) I