Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties
Hydroxyapatite (HAP) is the most widely accepted biomaterial for repairing bone tissue defects, demonstrating excellent biocompatibility and bioactivity that promote new bone formation. Zirconia (ZrO<sub>2</sub>), known for its strength and fracture toughness, is commonly used to reinfor...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/15/7/608 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849732975512518656 |
|---|---|
| author | Liliana Bizo Adriana-Liana Bot Marieta Mureșan-Pop Lucian Barbu-Tudoran Claudia Andreea Cojan Réka Barabás |
| author_facet | Liliana Bizo Adriana-Liana Bot Marieta Mureșan-Pop Lucian Barbu-Tudoran Claudia Andreea Cojan Réka Barabás |
| author_sort | Liliana Bizo |
| collection | DOAJ |
| description | Hydroxyapatite (HAP) is the most widely accepted biomaterial for repairing bone tissue defects, demonstrating excellent biocompatibility and bioactivity that promote new bone formation. Zirconia (ZrO<sub>2</sub>), known for its strength and fracture toughness, is commonly used to reinforce ceramics. In this study, magnesium oxide (MgO) served as a stabilizer for zirconia, resulting in magnesia partially stabilized zirconia (Mg-PSZ). Both Mg-PSZ and HAP were synthesized via coprecipitation and mixed in specific ratios to create composites through a ceramic method involving mixing, compaction, and sintering at 1100 °C. The samples were characterized using techniques such as X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS). Structural analyses confirmed the presence of both monoclinic and tetragonal zirconia phases. Besides, the increased wt.% HAP in the composites produced distinct peaks for hexagonal HAP. Crystallite sizes ranged from 27.45 nm to 31.5 nm, and surface morphology was homogeneous with small pores. Elements such as calcium, phosphorus, magnesium, zirconium, and oxygen were detected in all samples. This research also examined microhardness changes in the materials. The findings revealed enhancement in microhardness for the biocomposite with higher zirconia content, 90Mg-PSZ/10HAP sample, with the smallest average pore size, highlighting its potential for biomedical applications. |
| format | Article |
| id | doaj-art-2bc9bad49d6241c5998f364cf97ff983 |
| institution | DOAJ |
| issn | 2073-4352 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj-art-2bc9bad49d6241c5998f364cf97ff9832025-08-20T03:08:10ZengMDPI AGCrystals2073-43522025-06-0115760810.3390/cryst15070608Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness PropertiesLiliana Bizo0Adriana-Liana Bot1Marieta Mureșan-Pop2Lucian Barbu-Tudoran3Claudia Andreea Cojan4Réka Barabás5Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany János Str., 400028 Cluj-Napoca, RomaniaDepartment of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany János Str., 400028 Cluj-Napoca, RomaniaNanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babeş-Bolyai University, 42 Treboniu Laurian Str., 400271 Cluj-Napoca, RomaniaElectron Microscopy Center, Faculty of Biology and Geology, Babeș-Bolyai University, 5-7 Clinicilor Street, 400006 Cluj-Napoca, RomaniaDepartment of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany János Str., 400028 Cluj-Napoca, RomaniaDepartment of Chemistry and Chemical Engineering of Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany János Str., 400028 Cluj-Napoca, RomaniaHydroxyapatite (HAP) is the most widely accepted biomaterial for repairing bone tissue defects, demonstrating excellent biocompatibility and bioactivity that promote new bone formation. Zirconia (ZrO<sub>2</sub>), known for its strength and fracture toughness, is commonly used to reinforce ceramics. In this study, magnesium oxide (MgO) served as a stabilizer for zirconia, resulting in magnesia partially stabilized zirconia (Mg-PSZ). Both Mg-PSZ and HAP were synthesized via coprecipitation and mixed in specific ratios to create composites through a ceramic method involving mixing, compaction, and sintering at 1100 °C. The samples were characterized using techniques such as X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS). Structural analyses confirmed the presence of both monoclinic and tetragonal zirconia phases. Besides, the increased wt.% HAP in the composites produced distinct peaks for hexagonal HAP. Crystallite sizes ranged from 27.45 nm to 31.5 nm, and surface morphology was homogeneous with small pores. Elements such as calcium, phosphorus, magnesium, zirconium, and oxygen were detected in all samples. This research also examined microhardness changes in the materials. The findings revealed enhancement in microhardness for the biocomposite with higher zirconia content, 90Mg-PSZ/10HAP sample, with the smallest average pore size, highlighting its potential for biomedical applications.https://www.mdpi.com/2073-4352/15/7/608zirconiahydroxyapatitebiocompositesstructural propertiesmorphological propertiesVickers microhardness |
| spellingShingle | Liliana Bizo Adriana-Liana Bot Marieta Mureșan-Pop Lucian Barbu-Tudoran Claudia Andreea Cojan Réka Barabás Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties Crystals zirconia hydroxyapatite biocomposites structural properties morphological properties Vickers microhardness |
| title | Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties |
| title_full | Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties |
| title_fullStr | Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties |
| title_full_unstemmed | Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties |
| title_short | Magnesia Partially Stabilized Zirconia/Hydroxyapatite Biocomposites: Structural, Morphological and Microhardness Properties |
| title_sort | magnesia partially stabilized zirconia hydroxyapatite biocomposites structural morphological and microhardness properties |
| topic | zirconia hydroxyapatite biocomposites structural properties morphological properties Vickers microhardness |
| url | https://www.mdpi.com/2073-4352/15/7/608 |
| work_keys_str_mv | AT lilianabizo magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties AT adrianalianabot magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties AT marietamuresanpop magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties AT lucianbarbutudoran magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties AT claudiaandreeacojan magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties AT rekabarabas magnesiapartiallystabilizedzirconiahydroxyapatitebiocompositesstructuralmorphologicalandmicrohardnessproperties |