abstract |
A thermal spray powder feed composition for forming a refractory oxide coating comprising a mixture of zirconium silicate and zirconia at least partially stabilized with a stabilizing oxide. The as-deposited coating has a chemical composition of which, by x-ray phase analysis, comprises ZrSi0₄ and Zr0₂·x where x is selected from Ca0, Y₂0₃, Mg0, Ce0₂, and Hf0₂. |