@article{oai:nagano-nct.repo.nii.ac.jp:00001145,
 author = {堀口, 勝三 and 森山, 実},
 journal = {長野工業高等専門学校紀要, Memoirs of Nagano National College of Technology},
 month = {Jun},
 note = {application/pdf, The sintering promotion effect was investigated based on the both cases where 28kHz and 20kHz ultrasonic waves were applied and not applied during hot-press sintering of Ti powder. The promotion effect was 
 valuated by relative density, tensile strength,   Vickers hardness, electrical conductivity, and SEM microstructure observation. As a result, when the hot-press pressure was 40MPa and the sintering time was 10 minutes in the Ar inert gas atmosphere, great promotion was obtained at 800°C. For example, the relative density could be improved from 84.4% to 95.6% (at 20 kHz), and the tensile strength could be improved from 291MPa to 592MPa (at 20kHz). However, at a lower temperature at 600 and 700°C and a higher temperature of 900°C, the improvement range became smaller.},
 pages = {1--5},
 title = {Ti粉末加圧焼結時の超音波付与による高密度化},
 volume = {56},
 year = {2022}
}