Foam supplier Processing method Matrix alloy and processing additives Relative density (ρ /ρ s )1 (cell size, mm) Test method: strain rate (s−1 ) Sensitivity References Alporas™ Melt route Al2 0.10 (4.5) Direct impact, 10−5 –101 Sensitive [24 ] Alporas™ Melt route Al2 0.07/0.15 (∼2–7) SHPB2 , 102 −103 Sensitive [40 ] Alporas™ Melt route Al2 0.1 (2.6) SHPB2 , 10−3 –9 × 102 Sensitive [41 ] Alporas™ Melt route Al2 0.08–0.10 (4-5) Compression 10−5 –10−1 Sensitive [49 ] Alporas™ Melt route Al2 0.10 (2.6) SHPB2 , 10−3 –103 Sensitive [50 ] Alporas™ Melt route Al2 0.08 (∼3.0) SHPB2 , 10−3 –103 Sensitive [51 , 52 ] Alporas™ Melt route Al2 0.06–0.25 (4.5) SHPB2 , drop weight impact, 10−3 –103 Sensitive [53 ] MCM Melt route Al-4.82Ni-3.06Mg-7.19 others2 0.12 (3) DHPB3 , 10−3 –103 Sensitive [54 ] Alporas™ Melt route Al-7Zn-0.5Mg2 0.06 (3.0–4.5) SHPB2 , 10−3 –102 Insensitive [55 ] Alporas™ Melt route Al-7Zn-0.5Mg2 0.06 (3.0–4.5) Drop weight impact, 10−3 –102 Insensitive [56 ] Alporas™ Melt route Al-5Zn-1Mg; Al-7Zn-0.5Mg2 0.06–0.16 (2.4–3.7) Drop weight impact, 10−3 –102 Insensitive [57 ] Alulight™ Powder technique Al-0.6Mg-0.3Si2 0.16–0.40 (∼1) SHPB2 , direct impact, 10−3 –103 Insensitive [39 ] IFAM Powder technique Al-0.6Mg-0.3Si2 0.23 (5) SHPB2 , DHPB3 Sensitive [58 ] Shunk™ Powder technique Al-7Si2 0.07–0.24 (1.08–2.82) Drop weight, 10−3 –102 Sensitive [59 ] IFAM Powder technique Al-7Si2 0.27–0.40 (4/14) DTCHB4 , 10−3 –6 × 102 Slightly sensitive/Insensitive [60 ] Alulight™ Powder technique Al-12Si-0.6Mg2 0.13–0.20 (4.5) Drop weight impact Slightly sensitive [43 ] Hydro/Cymat™ Gas injection Al-(7–9)Si-(0.5–1)Mg 0.04–0.19 (4/14) SHPB2 , 102 –104 , direct impact, 103 –105 Insensitive/Sensitive [44 ] Cymat™ Gas injection Al 0.09 (8) SHPB2 , DHPB3 Insensitive [58 ] Cymat™ Gas injection Al 0.10–0.24 (3.37–4.37) Drop weight, 10−3 –102 Insensitive [59 ]
