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1·The niobium yttrium alloy or tantalum yttrium alloy plates prepared by adding yttrium nitride in niobium or tantalum is characterized by fine grain, good ductility and good consistency of material.

本发明通过给铌或钽中添加氮化钇制成的铌钇或钽钇合金板具有晶粒细化、延展性好、材料一致性好的特点。