Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yanaba Yutaka and Hayashi Koji,Estimation of Microscopic Fracture Surface Area and Formation Energy of Fracture Surface of WC-Co Cemented Carbide by Using Optical and Atomic Force Microscopes.,Journal of the Japan Society of Powder and Powder Metallurgy,05328799,Japan Society of Powder and Powder Metallurgy,1997,44,3,263-268,https://cir.nii.ac.jp/crid/1390001206309450624,https://doi.org/10.2497/jjspm.44.263