#TITLE_ALTERNATIVE#
Technological developments using ceramic dental material continue to grow such as using zirconia.Zirconia continue investigated because it has mechanical properties and aesthetic properties better than other material such as polymers and metals. Based on the properties of zirconia which has optical...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/17697 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Technological developments using ceramic dental material continue to grow such as using zirconia.Zirconia continue investigated because it has mechanical properties and aesthetic properties better than other material such as polymers and metals. Based on the properties of zirconia which has optical properties, mechanical, and biocompatible, it is necessary to study this more intense use of zirconia for dental materials. Zirconia has good mechanical properties when added stabilizer, which is widely used metal oxides for stabilizer, including MgO, <br />
<br />
<br />
<br />
<br />
Y2O3, CaO, CeO, and La2O3. With the addition of the stabilizer element is expected to improve its mechanical properties and are able to follow the phenomenon of transformation toughening. Nanoparticle Magnesia Partially <br />
<br />
<br />
<br />
<br />
Stabilized Zirconia (Mg-PSZ) made by sol-gel methode. Parameter of this experiment are stabilizer concentration and calcintaion temperature. About 5% and 15% MgO added to partially stabilized zirconia. Precursor concentration <br />
<br />
<br />
<br />
<br />
about 0,05M and 0,2% chitosan used. The use of Chitosan is for dispersant. MgO addition to make tetragonal crystal structure formed at room temperature. Calcination temperature is 800oC, 900oC, and 1000oC. Characterization use XRay Diffraction (XRD) and Scanning Electron Microscope (SEM). The biggest percentage of tetragonal crystal structure obtained from 15% stabilizer added. Particle size Mg-PSZ measured by picture from SEM. The smallest particle size is 51 nm from sample with 15% stabilizer and 9000C calcination temperature. Microvickers hardness test used for measure mechanical properties of Mg-PSZ. The hardest sample from sample with 15% stabilizer is 18,6 VHN. |
|---|