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Zirconia (ZrO2) is ceramic which has excellent mechanical and optical properties. With addition of stabilizer, such as Y2O3, CaO, MgO, La2O3, dan CeO, mechanical properties of zirconia increase. Zirconia is also has a good chemical <br /> <br /> <br /> <br /> <br /&g...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/15934 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Zirconia (ZrO2) is ceramic which has excellent mechanical and optical properties. With addition of stabilizer, such as Y2O3, CaO, MgO, La2O3, dan CeO, mechanical properties of zirconia increase. Zirconia is also has a good chemical <br />
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and biological stability. Therefore, zirconia won’t react chemically and biologically with living tissue arround it. <br />
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Nanoparticle Yttrium Stabilized Zirconia (YSZ) made by sol-gel methods. <br />
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Parameter of this experiment is precursor concentration, stabilizer concentration, and chitosan addition. Concentration of precursor will affect to YSZ particle size. About 3% and 8% yttrium added to stabilize zirconia. Because of yttrium addition, tertragonal structure formed at room temperature. In this experiment, chitosan act as a template. Characterization use X-Ray Diffraction (XRD) and Secondary Electron Microscopy (SEM). Chitosan addition will make more homogeneous crystal ztructure of zirconia, tetragonal structure. Particle size YSZ measured by SEM. <br />
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Sample with precursor concentration 0,1 M and chitosan addition has particle size 56,3 nm. Sample with same concentration but no chitosan addition has size particle 76,2 nm. Microvickers hardness test is for measure mechanical properties of YSZ. |
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