@article{oai:sucra.repo.nii.ac.jp:00016541, author = {加藤, 寛 and 松浦, 誠}, journal = {埼玉大学地域オープンイノベーションセンター紀要, Report of Comprehensive Open Innovation Center, Saitama University}, month = {}, note = {Aluminum alloy base composite casting plates (MMC) were produced by the hybrid method of the sand-mold casting and the low pressure casting, and then holes of different diameters and depth were artificially introduced in the plates for ultrasonic measurement. Plates of AC4A were also prepared for comparison. The ultrasonic measurement was carried out by using a probe generating a longitudinal wave with a frequency of 5 MHz. Holes with a minimum diameter of 2 mm and 1 mm were detected for MMC and AC4A plates, respectively., text, application/pdf}, pages = {83--83}, title = {アルミ基複合材料鋳物のハイブリッド砂型鋳造法の開発}, volume = {2}, year = {2010}, yomi = {カトウ, ヒロシ and マツウラ, マコト} }