“…9 , that the lowest specific wear rate of 3.587 × 10 –9 cm 2 /g.cm 3 was obtained by B4 hybrid composite at the maximum wear load of 750N and sliding speed of 500 rpm. Increased specific wear rate as observed for the C2 composite having a single reinforcement content of 10wt.% SBRC-BLA could be attributed to catastrophic ploughing and dislodging of the revealed reinforcement particles from the topmost surface of the composites as soon as they come in contact with the progressively sliding abrasive disc 16 . Figure 7 Specific wear rate of composites at load 250 N load under different speed.…”
Section: Resultsmentioning
confidence: 82%
“…7, 8, and 9 respectively. The specific wear rate (cm 2 /g.cm 3 ) is a measure of the total area or amount of materials that are cut off from the surface of the hybrid composite by one Newton load/force 16 . It could be observed from Fig.…”
Section: Specific Wear Ratementioning
confidence: 99%
“…11A-C show the actual observed response values versus the predicted response values and detect observations that are not easily predicted by the model. www.nature.com/scientificreports/ It could be observed that the data points are split evenly by the 45-degree line, indicating that the design models are sufficient to predict the responses 16,23 . For response surface designs, the primary model graphs are the 3D and contour plots.…”
Wear properties of Al–Mg–Si alloy matrix hybrid composites made with Si-based refractory compounds (SBRC) derived from bamboo leaf ash (BLA) as complimentary reinforcement with alumina have been studied. The experimental result indicate that optimum wear loss was obtained at higher sliding speed. The wear rate of the composites increased with an increase in BLA wt. %, with the composites having 4%SBRC from BLA + 6% alumina (B4) showing the least wear loss for the different sliding speeds and wear loads considered. With increasing BLA weight percent, the composites' wear mechanism was mostly abrasive wear. Numerical optimization results using central composite design (CCD) reveal that at a wear load of 587.014N, sliding speed of 310.053 rpm and B4 hybrid filler composition level respectively, minimum responses in wear rate (0.572mm2/min), specific wear rate (0.212cm2/g.cm3) and wear loss (0.120 g) would be obtained for the developed AA6063 based hybrid composite. Perturbation plots indicate that the sliding speed have more impact on wear loss, while wear load have significant impact on the wear rate and specific wear rate.
“…9 , that the lowest specific wear rate of 3.587 × 10 –9 cm 2 /g.cm 3 was obtained by B4 hybrid composite at the maximum wear load of 750N and sliding speed of 500 rpm. Increased specific wear rate as observed for the C2 composite having a single reinforcement content of 10wt.% SBRC-BLA could be attributed to catastrophic ploughing and dislodging of the revealed reinforcement particles from the topmost surface of the composites as soon as they come in contact with the progressively sliding abrasive disc 16 . Figure 7 Specific wear rate of composites at load 250 N load under different speed.…”
Section: Resultsmentioning
confidence: 82%
“…7, 8, and 9 respectively. The specific wear rate (cm 2 /g.cm 3 ) is a measure of the total area or amount of materials that are cut off from the surface of the hybrid composite by one Newton load/force 16 . It could be observed from Fig.…”
Section: Specific Wear Ratementioning
confidence: 99%
“…11A-C show the actual observed response values versus the predicted response values and detect observations that are not easily predicted by the model. www.nature.com/scientificreports/ It could be observed that the data points are split evenly by the 45-degree line, indicating that the design models are sufficient to predict the responses 16,23 . For response surface designs, the primary model graphs are the 3D and contour plots.…”
Wear properties of Al–Mg–Si alloy matrix hybrid composites made with Si-based refractory compounds (SBRC) derived from bamboo leaf ash (BLA) as complimentary reinforcement with alumina have been studied. The experimental result indicate that optimum wear loss was obtained at higher sliding speed. The wear rate of the composites increased with an increase in BLA wt. %, with the composites having 4%SBRC from BLA + 6% alumina (B4) showing the least wear loss for the different sliding speeds and wear loads considered. With increasing BLA weight percent, the composites' wear mechanism was mostly abrasive wear. Numerical optimization results using central composite design (CCD) reveal that at a wear load of 587.014N, sliding speed of 310.053 rpm and B4 hybrid filler composition level respectively, minimum responses in wear rate (0.572mm2/min), specific wear rate (0.212cm2/g.cm3) and wear loss (0.120 g) would be obtained for the developed AA6063 based hybrid composite. Perturbation plots indicate that the sliding speed have more impact on wear loss, while wear load have significant impact on the wear rate and specific wear rate.
“…Monolithic materials are becoming less prevalent across a wide range of technological sectors as a result of the constantly rising demands of today's existing and new technologies on high product capabilities, functions, and performance [1]. Several materials can be combined in a natural or synthetic way to create materials with improved qualities and performance.…”
Polyester based particle reinforced composites were developed using varying weight fractions (ranging from 0 to 30 wt%, at 5 wt% interval) of microcrystalline wood charcoal powder (75µm). Quantitative, qualitative and functional characterization of developed wood charcoal (WC) particles reinforced polyester matrix composites was carried out successfully using energy dispersive x-ray spectrophotometer (EDXRF), Fourier transform infrared spectrometer (FTIR) and scanning electron microscope (SEM) enhanced with ancillary EDS for elemental identification capability. The primary elements and oxides identified in wood charcoal by EDXRF include iron, copper, zinc, calcium and CaO, Fe2O3, CuO, ZnO respectively. These elements and oxides were noted to induce improvement on the properties of reinforced polymer composites. EDS elemental mapping also confirmed the major elements identified by EDXRF analysis. Composites reinforced with microcrystalline wood charcoal exhibited strong interfacial bonding and interlocking due to even dispersion of the filler particles as revealed by SEM images. Interactions of the microcrystalline wood charcoal fillers with the polyester matrix molecules were revealed by FTIR functional characterization as minor shifts in the frequency bands of functional groups normally present in unsaturated polyester resin.
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