Beschreibung:
<jats:title>Abstract</jats:title><jats:p>In this work, the synthesis of the negative thermal expansion ceramic Y<jats:sub>2</jats:sub>W<jats:sub>3</jats:sub>O<jats:sub>12</jats:sub> within a Co-based superalloy was analyzed in detail. On the basis of thermal analysis of the synthesis from the feedstock powders Y<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> and WO<jats:sub>3</jats:sub> further experiments were conducted. Thermal behavior and stability of different mixtures of the powders Y<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>, WO<jats:sub>3</jats:sub> and the Co-based superalloy were investigated. The qualitative and quantitative results of the synthesis separately and within the superalloy are presented as achieved by energy dispersive X-ray analysis, X-ray powder diffraction, differential thermal analysis and thermal gravimetric analysis. It was found that the synthesis of yttrium tungstate inside the Co-based superalloy is possible with a defined temperature program and a simple basic production process of powder mixtures.</jats:p>