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机译:
North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;
Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China;
Univ Cent Florida, Dept Mat Sci & Engn, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA;
lead-free piezoelectric; KNN; converse piezoelectric coefficient; donor dopant; piezoelectric property; polymorphic phase transition;