Phase formation capability and compositional design of β-phase multiple rare-earth principal component disilicates

A key strategy to design environmental barrier coatings focuses on doping multiple rare-earth principal components into β-type rare-earth disilicates (RE₂Si₂O₇) to achieve versatile property optimization. Herein, we report the experimental method for synthesizing (RE^I_0.25RE^II_0.25RE^III_0.25RE^IV_0.25)₂Si₂O₇ compounds. The procedure of synthesizing powder materials, fabricating bulk samples, phase identification, and composition characterization are described. The work, which elaborates with details for the "Experimental Section" of our lately submitted journal article, may accelerate the design of (nRE_xi)₂Si₂O₇ materials.