Abstract
Zr-Al-Ca-O-N composites were prepared in N2 atmosphere at 1600 oC with Ca-PSZ and AlN powders as raw materials. Zr-Al-Ca-O phase was synthesized in air atmosphere at 1600 oC with Al2O3, ZrO2 and CaO powders as raw materials. Phase constitution of these composites was investigated by XRD and EDS analyses. The results show that Zr-Al-Ca-O phase exists in Al-CaO-ZrO2-N2 systems ceramic and Zr-Al-Ca-O phase can be synthesized in air atmosphere at high temperature with Al2O3, ZrO2 and CaO powders as raw materials.
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