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1341
Investigation of nickel-base superalloy fabricated by laser powder bed fusion
Published 2024“…Microstructural analysis was done using optical and scanning electron microscopes equipped with electron backscatter diffraction detectors (EBSD) on the printed components. Tensile tests and Vickers hardness tests were conducted to characterize the mechanical properties of IN725 printed at different power levels and scanning strategies. …”
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Final Year Project (FYP) -
1342
Tribological performance of additively manufactured CoCr and Ti64 Alloys
Published 2018“…The use of triboelectrochemical method such as open circuit potential measurement was applied to access the microstructural differences between different sample thickness and how the coefficient of friction relates to the corrosion and wear rate differed in the simulated bodily fluid. Furthermore, Vickers hardness test were carried out to determine the hardness of samples and compared with wear rate, microstructure and COF to determine the relation.…”
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Final Year Project (FYP) -
1343
Comparative Study on Tribological Behavior of Ti-6Al-4V and Co-Cr-Mo Samples Additively Manufactured with Electron Beam Melting
Published 2016“…The microstruture and Vickers microhardness of the samples were also analyzed, which were related to the respective wear rate.…”
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Conference Paper -
1344
Hard polycrystalline eutectic composite prepared by spark plasma sintering
Published 2013“…XRD analysis revealed that the eutectic B4C–TiB2 composite consist mainly of B4C and TiB2 phases. The measured Vickers hardness was in the range of 32.35–54.18 GPa and the average fracture toughness of the samples was as high as 4.81 MPa m1/2. …”
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Journal Article -
1345
Effect of nano silica on the sinterability of hydroxyapatite dense bodies
Published 2011“…In agreement with the bulk density trend, the increasing silica additives in HA depleted the Young’s modulus and Vickers hardness of the HA body. The study revealed that the addition of silica have an adverse effect on the sintered properties of hydroxyapatite bioceramics.…”
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Article -
1346
Fabrication of CuSiC composite by powder metallurgy route
Published 2011“…The density of the composite decrease with increasing SiCf and density as high as 87% for 10vol% SiCf/Cu matrix sintered at 800°C had been achieved. The Vickers hardness of 774MPa also had been achieved for 10vol% SiCf/Cu matrix but sintered at 900°C. …”
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Article -
1347
Influence of carbon addition on mechanical properties in ultra-fine WC-Co cutting insert / Nur Atikah Muin
Published 2017“…The hardness is measured using Vickers Hardness tester while the TRS is determined using Universal Testing Machine. …”
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Student Project -
1348
Effect of carbon addition and VC on mechanical properties in ultra-fine WC-Co cutting tool / Nurul Nazihah Ismail
Published 2017“…Mechanical properties of sintered cutting tools are measured such as the hardness of the cutting tool using Vickers Hardness Test and transverse rupture strength (TRS) using the Universal Testing Machine. …”
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Student Project -
1349
Mechanisms of failure in porcelain-veneered sintered zirconia restorations
Published 2013“…In addition, it is surmised that the fragility of the prosthesis may result from the high Vickers hardness and the associated low toughness of porcelain.…”
Conference item -
1350
On the hardness of coated systems
Published 1998“…The hardness of a number of coated systems has been measured using a variety of experimental techniques ranging from traditional macro-Vickers indentation to ultra-low-load depth-sensing nanoindentation. …”
Journal article -
1351
A study of the sintering behaviour of magnesium diboride
Published 2009“…We have studied the effect of a range of heat-treatments on the microstructure of pellets produced from commercial MgB₂ powder using X-ray diffraction, scanning electron microscopy, Vickers hardness tests and by density measurements using Archimedes' principle. …”
Journal article -
1352
Indentation-induced crack interaction in alumina ceramics
Published 1996“…Polycrystalline aluminas of tailored composition and grain size, prepared using liquid-phase sintering aids based on the Al2O3-CaO-SiO2 and Al2O3-MgO-SiO2 systems, have been indented at loads close to their critical fracture limit P*, using closely spaced arrays of low-load Vickers indentations. The propagation of cracks caused by indentation is influenced by internal residual stresses at alumina grain boundaries developed during cooling from the processing temperature, and primarily the result of thermal expansion mismatches between the alpha-Al2O3 crystals of the matrix and an intergranular glass of composition related to that of the sintering aid. …”
Conference item -
1353
Improved thermal and mechanical properties in hydroxyapatite–titanium composites by incorporating silica-coated titanium
Published 2015“…Consequently, composites containing identical weight ratios of hydroxyapatite and silica-coated titanium exhibited a relatively high Vickers' hardness value comparable to that of titanium-hydroxyapatite composites with a weight ratio of 3:1. …”
Article -
1354
The influence of sintering temperature on the properties of compacted bovine hydroxyapatite
Published 2009“…The sintered BHA specimens were analyzed using Archimedes method for measuring density; XRD for phase stability; and Vickers method for hardness measurement. The analysis results show that the starting BHA powder and the sintered BHA specimens contain HA. …”
Article -
1355
Design And Development Of An Integrated Infield Collection-Transportation Machine For Oil Palm Fresh Fruit Bunch
Published 2002“…A 29.8 kW @ 2200 rpm KUBOTA V2203-E 4- cylinder diesel engine, a 2 1 .5 gpm @ 1000 rpm VICKERS TA1 919 main hydrostatic pump, and a 14.5 gpm @ 1000 rpm SAMHYDRAULIC HIC55 driving motor were selected based on the computations made to determine the machine total engine power and total hydraulic pressure requirements for the machine to operate under local terrain conditions.…”
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Thesis -
1356
Microhardness characteristics of AL-6063 alloy processed by equal channel angular extrusion
Published 2014“…The influence of ECAE processing on the evolution of microhardness in the material was studied using Vickers microhardness testing. The detailed analysis was carried out on the samples of as-received, one, two, three, four, five, and six pass conditions. …”
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Article -
1357
Physico-mechanical properties of porcelain by substitution of quartz with POFA Treated with 2M Hcl acid
Published 2018“…The highest compressive strength, bulk density and Vickers microhardness being achieved at sintering temperature of 1150 °C using treated sample with the values 169 MPa, 2.432 g/cm3 and 774 HV respectively. …”
Article -
1358
Kajian sifat kehausan dan kekerasan komposit matriks aluminium
Published 2003“…Objektif kajian adalah merangkumi kepada pengujian ke atas sifat kekerasan dan sifat haus spesimen yang dihasilkan. Ujian kekerasan Vickers menunjukkan Al tulen/SiC/40p yang disinter pada suhu 550°C menunjukkan nilai kekerasan yang maksimum iaitu 90.3 Hv. …”
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Article -
1359
Effects of quenching media on phase transformation characteristics and hardness of Cu-Al-Ni-Co shape memory alloys
Published 2015“…To clarify the variations of the structures and properties of Cu-Al-Ni-Co SMA quenched samples, x-ray diffraction, atomic force microscopy, field emission scanning electron microscopy, energy dispersive spectroscopy, and Vickers hardness were used.…”
Article -
1360
Microstructural characterizations and mechanical properties in friction stir welding technique of dissimilar (Al-Cu) sheets
Published 2015“…Macrostructures, microstructures, X-ray diffraction (XRD), Vickers microhardness and tensile strength were investigated at these different rotational speeds. …”
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