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Sains Malaysiana 45(8)(2016): 1275–1279 Nanoindentation
Approach on Investigating Micromechanical Properties of Joining
from Green Solder Materials (Kaedah
Perlekukan Nano dalam Mengkaji Sifat Mikromekanik Sambungan Bahan
Aloi Pateri Hijau) MARIA ABU
BAKAR1,
AZMAN
JALAR1,2*,
ABDUL
RAZAK
DAUD2,
ROSLINA
ISMAIL1,
NUR AZIDA
CHE
LAH3
& NAJIB SAEDI IBRAHIM4 1Institute of Microengineering and
Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia 43600 Bangi, Selangor Darul Ehsan,
Malaysia 2School of Applied Physics, Faculty
of Science and Technology, Universiti Kebangsaan Malaysia 43600 Bangi, Selangor Darul Ehsan,
Malaysia 3Fabrication & Joining Section,
Universiti Kuala Lumpur Malaysia France Institute, Section 14, Jalan
Teras Jernang, 43650 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia 4Redring Solder (M) Sdn. Bhd., Lot17486,
Jalan Dua, Taman Selayang Baru, 68100 Batu Caves, Selangor Darul
Ehsan, Malaysia Diserahkan: 20 April 2015/Diterima:
12 Januari 2016 ABSTRACT This work investigates the
micromechanical properties of Sn96.5Ag3.0Cu (SAC 305)
on Immersion Tin (ImSn) surface finished after subjected to high
temperature storage (HTS) at 180°C for
200 to 1000 h period. Nanoindentation approach was used to measure
the micromechanical properties of the solder. It was observed that
the indentation depth and plastic depth were increased and a clear
trend of decreasing hardness as opposed to the increasing reduced
modulus as the HTS time
lengthened. The plasticity-asscociated properties become stronger
meanwhile the elasticity-associated properties decreased with the
HTS time.
These findings indicate that nanoindentation approach can clearly
determine the plastic and elastic deformation occurance throughout
the test. Keywords: Lead-free solder;
micromechanical properties; nanoindententation ABSTRAK Penyelidikan ini mengkaji sifat
mikromekanik Sn96.5Ag3.0Cu (SAC 305) pada substrat dengan
kemasan permukaan rendaman timah (ImSn) selepas didedahkan pada
penyimpanan suhu tinggi (HTS) pada suhu 180°C selama 200 hingga 1000 jam. Kaedah
perlekukan nano digunakan untuk mengukur sifat mikromekanik aloi
pateri. Didapati bahawa kedalaman perlekukan dan plastik meningkat
dan terdapat tren kekerasan yang jelas menurun bertentangan dengan
modulus terkurang dengan pemanjangan masa HTS. Sifat berkaitan plastik menjadi
semakin kuat dan sebaliknya bagi sifat elastik yang menurun dengan
pemanjangan masa HTS. Keputusan menunjukkan pendekatan menggunakan kaedah
perlekukan nano dapat mengenal pasti kewujudan canggaan plastik
dan elastik sepanjang uji kaji. Kata kunci: Pateri bebas plumbum; perlekukan nano; sifat mikromekanik Abdullah,
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