Essay On Microstructure Analysis
3.8 Microstructure Analysis Microstructure analysis are define the structure of samples by using Field Emission Scanning Electron Microscope (FESEM). Microstructure analysis are important because it can influence the physical and mechanical properties such as strength and hardness of samples. FESEM used to identify the particle size and morphology of samples. First, the samples preparation must done before the analysis of microstructure. The samples need to grinding and polishing by using silica carbide paper and diamond paste to make the samples more smooth and shine. Next, the sample must go through the thermal etched before analysis through FESEM. Thermal etched was done at 950°C and 1050°C in 30 minutes with 2°C/min of heating and cooling rates. The etched surface sample is coated with gold before characterized under Field Emission Scanning Electron Microscopy (FESEM). The samples need to be etched and the etching process is to reveal the grain structure before viewing. In this experiment, thermal etched of sample was heated at 50oC below the sintering temperature and the holding time was set for 30 minutes. Next, the sample are mounted at FESEM stub and coated with gold at 20 miliamperes at 60 seconds with 15kV of voltage. Lastly, the microstructure of HA and HA/SA were investigated by using Field Emission Scanning Electron Microscopy. …show more content…
Furthermore, the methodology that attached are based on hydroxyapatite (HA) and sodium alginate (SA) composites that have been discussed in detail while for characterization, FTIR, FESEM,XRD, EDS, density and hardness test are being studied and discussed. The morphology, physical and mechanical properties of HA and HA/SA composite are studied based on their standard and
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