id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fis-2616	Papantoniou, Ioannis; Kyriakopoulou, Helena; Pantelis, Dimitrios; Manolakos, Dimitrios	Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency	2019	8	.pdf	application/pdf	4270	250	45	Concerning the powder morphology, it was concluded that in all tests the foams with the fine aluminium powder exhibited higher foaming efficiency than the foams with coarse aluminium powder. As far as it concerns the compaction pressure/foaming temperature, the highest foaming efficiency was observed for pre- cursors with compaction pressures higher than 700 MPa and high foaming temperatures of 750 oC and 800 oC. The speci- mens with 800 oC sintering temperature introduced a slightly higher foaming efficiency and foaming rate but collapsed sooner than the specimens with 750 oC. The compression tests with the specimens with the parameters that resulted to the higher foaming efficiency provided stress-strain curves characterized by the typical initial elastic response, followed by a deformation plateau with a positive slope and finally a transition to densification.	cache/fis-2616.pdf	txt/fis-2616.txt