Fabrikasi Dan Penganodan Komposit Matriks Aluminium Diperbuat Daripada Serbuk Aluminium Berbentuk Kepingan Dan Gentian Pendek Alumina Saffil ™
Kajian fabrikasi dan penganodan komposit matriks aluminium (KMA) diperbuat daripada serbuk aluminium berbentuk kepingan dan gentian pendek alumina SaffilTM telah dijalankan. Fabrikasi KMA melalui kaedah metalurgi serbuk (MS) dengan menggunakan kaedah pencampuran kering dalam atmosfera nitrogen di...
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| Format: | Thesis |
| Language: | English |
| Published: |
2006
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| Subjects: | |
| Online Access: | http://eprints.usm.my/30789/1/MOHD_NAZREE_BIN_DERAMAN.pdf |
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| Summary: | Kajian fabrikasi dan penganodan komposit matriks aluminium (KMA) diperbuat daripada
serbuk aluminium berbentuk kepingan dan gentian pendek alumina SaffilTM telah
dijalankan. Fabrikasi KMA melalui kaedah metalurgi serbuk (MS) dengan menggunakan
kaedah pencampuran kering dalam atmosfera nitrogen dikaji dengan menentukan
tempoh pensinteran dan nilai peratusan optimum kandungan gentian pendek alumina
SaffiITM. Proses penganodan asid sulfurik telah dijalankan dan objektifnya adalah untuk
mendapatkan parameter kepekatan asid sulfurik, bezaupaya dan tempoh penganodan
yang sesua; untuk KMA. Kandungan optimum gentian pendek alumina SaffilTM (0 hingga
25% berat) ditentukan berdasarkan ujian mikrostruktur, ujian ketumpatan dan keliangan,
ujian tegangan, ujian mikrokekerasan, analisis fasa pembelauan sinar-X (XRO) dan ujian
pengembangan linear (PPL).
A study of fabrication and anodising on aluminium matrix composites (AMC) made from
flaky aluminium powder and short fibre alumina Saffil™ was carried out. AMC fabrication
by powder metallurgy methods (PM) using dry mixing and sintered in nitrogen was
studied to determine the best sintering time and optimum percentage of Saffil™ alumina
short fibres content. Sulphuric acid anodising process was performed and the objective
is to obtain suitable parameters of sulphuric acid concentration, anodising voltage and
anodising time. Characterisation on AMC included anodised also involved corrosion and
wear test. The optimum SaffilH.4 alumina short fibre contents (0 to wt 25%) was
determined by microstructure, density and porosity test, tensile strength, microhardness
test, X-ray diffraction (XRD) analysis and coefficient of thermal expansion (CTE)
analysis. |
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