1HE ChongJun1,ZHONG WeiZhuo2 & LIU YouWen1 1 College of Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2 Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201800,China.Dendrite crystal morphology evolution mechanism of β-BaB_2O_4 crystal[J].Science China(Technological Sciences),2009,52(6):1703-1706.