Abstract: An initial baseline approach of fabricating the full ring HYLTE nozzle blade from 4-1/4 ring segments is selected. A novel 1/4 ring HYLTE nozzle structure including three gas supply pipelines is obtained by further simplifing existing ring nozzle structures. The section centers of the pipelines are all on the symmetric plane of the nozzle blade. These changements will not influence the performance of the nozzle. In addition, two fabricating methods of ring HYLTE nozzle blades are presented, one is vacuum brazing method, the other is embed-casting method. Samples are made using the first method. The corresponding testing results demonstrate that the welds of the ring nozzle blade have the characteristics of resistance to leaking, well mechanical properties and working properly in high tempe