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008			220303s2020 my a|||fr|||| 000 0 eng d
020			_aTHE0009129(Local) _qhardback
040			_aUMP _beng _cUMP _erda
090			_aFTKPM .F37 2020 r Thesis
100	1		_aFarah Fazira Kamaruzaman, _eauthor.
245	1	0	_aPreparation and characterization of al-al2o3 graded composite materials under different sintering conditions / _cFarah Fazira Kamaruzaman
264		1	_aKuantan, Pahang : _bUMP, _c2020
264		4	_a© 2020
300			_axii, 83 pages : _billustrations (some color) ; _c30 cm. + _e1 CD ROM
336			_atext _2rdacontent
336			_atext _2rdacontent
337			_aunmediated _2rdamedia
337			_acomputer _2rdamedia
338			_avolume _2rdacarrier
338			_acomputer disc _2rdacarrier
347			_atext file _bPDF _2rda
500			_aFaculty of Manufacturing and Mechatronic Engineering Technology
502			_aThesis (Master of Science) -- Universiti Malaysia Pahang – 2020
504			_aIncludes bibliographical references
520	3		_aFunctionally graded materials (FGMs) refer to advanced composite materials where the compositions and microstructures are locally varied to allow certain variations of local material properties. In this research, the combination of aluminium (Al) as the metallic phase, and aluminium oxide (Al2O3) as ceramic phase in Al -Al2O3graded composite materials are investigated because of mismatch of their thermal properties. The main objective of this research is to investigate the defects and failures such as delamination, decohesion and cracks that might occur during processing which influenced the sintering parameters on density, radial shrinkage, micro-hardness and microstructure of Al-Al2O3 graded structures. This thesis reports the preparation of the four-layered aluminium-aluminium oxide (Al-Al2O3) graded composite materials using powder metallurgy techniques, including the preparation of powders, cold compaction and pressure-less sintering. The free defects four-layered Al-Al2O3 graded composite materials were successfully fabricated under different sintering profile s (two-step and three-step), temperature (600°C and 620°C) and time (120 min and 180 min). The AlAl2O3 FGM have been analysed to find out the effect of sintering conditions on density, shrinkage, micro-hardness and microstructural. From the result of experimental study, densification and micro-hardness of Al-Al2O3FGM improves as the sintering time gives most significant roles during processing. While, shrinkage and microstructure of Al Al2O3 FGM depending upon the sintering temperature. From the microstructural analysis of Al-Al2O3 FGM, it was found that uniform distribution of Al2O3ceramic particles in the Al matrix in all three layers mixed composition with minimum agglomeration. All sintering conditions chosen such as temperature, time and profile, play main role as the micrograph indicated the improvement in distribution, size of pores and interfacial layer with almost straight and parallel line, rather than wavy lines .
610	2	0	_aFaculty of Manufacturing and Mechatronic Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses
942			_2lcc _cTHESIS