Chang, L.-S.L.-S.ChangChuang, T.-H.T.-H.ChuangTUNG-HAN CHUANGWEN-CHENG J. WEI2020-05-122020-05-122000https://scholars.lib.ntu.edu.tw/handle/123456789/492046Characterization of alumina ceramics by ultrasonic testingjournal article10.1016/S1044-5803(00)00081-42-s2.0-0034262365https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034262365&doi=10.1016%2fS1044-5803%2800%2900081-4&partnerID=40&md5=3f050e3fa7e146dd1a8383cbf041acab