Sains Malaysiana 42(12)(2013): 1755–1761

Effect of Dissolution Times on Compressive Properties and Energy

Absorption of Aluminum Foam

(Kesan Masa Pelarutan ke Atas Sifat Mampatan dan Penyerapan Tenaga Busa Aluminium)

NUR SURIANNI AHAMAD SUFFIN, ANASYIDA ABU SEMAN* & ZUHAILAWATI HUSSAIN

School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia

Diserahkan: 23 Mac 2012/Diterima: 23 Mei 2012

ABSTRACT

Aluminum foams were fabricated by sintering dissolution process (SDP) using sodium chloride (NaCl) as space holder. The compositions of space holder, used in this study were 40 and 60 wt. % with different dissolution times; 1, 2 and 3 h. The effect of different dissolution times on compressive behavior and energy absorption of foams were evaluated. The result showed that by increasing space holder and dissolution times, energy absorption capability increases. For aluminum foam contains 60 wt. % NaCl, longer dissolution times resulted in thinner cell wall and cell structure become more unstable which lead to lower plateau region.

Keywords: Aluminium foam; compressive properties; dissolution time; energy absorption; sintering dissolution process

ABSTRAK

Busa aluminium telah dihasilkan melalui proses pensinteran pelarutan (SDP) menggunakan natrium klorida (NaCl) sebagai agen pembusaan. Komposisi bahan pembusaan yang digunakan dalam kajian ialah 40 dan 60 % berat dengan masa pembusaan yang berbeza; 1, 2 dan 3 jam. Kesan masa pembusaan yang berbeza ke atas sifat mampatan dan penyerapan tenaga aluminium berbusa dikaji. Hasil kajian menunjukkan dengan peningkatan agen pembusaan dan masa pelarutan, keupayaan penyerapan tenaga meningkat. Busa aluminium yang mengandungi 60 % berat NaCl, dengan masa pelarutan yang lebih panjang menyebabkan dinding sel menjadi lebih nipis dan struktur sel menjadi lebih tidak stabil dan mengurangkan rantau dataran.

Kata kunci: Aluminium berbusa; masa pelarutan; penyerapan tenaga; proses pelarutan; proses pensinteran pelarutan

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*Pengarang untuk surat-menyurat; email: anasyida@eng.usm.my