Effect of GdO Addition on the Microstructure and Properties of GdO-YbO-YO-ZrO (GYYZO) Ceramics.

Gd and Yb elements have high chemical stability, which can stabilize the solid solution in ZrO. GdO and YbO have high melting points, and good oxidation resistance in extreme environments, stable chemical properties. Therefore, GdO and YbO were added to ZrO to stabilize oxides, improve the high temperature stability, and effectively decrease the thermal conductivity at high temperature.