Microstructural and Mechanical Properties of Hydroxyapatite–Zirconia Composites

Erkmen, Ziya Engin; Genç, Yasin; Oktar, Faik N.

doi:10.1111/j.1551-2916.2007.01849.x

Cited by 50 publications

(40 citation statements)

References 29 publications

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“…Other reinforcement materials for CaPO 4 could be differentiated by either shape of the fillers, such as particles [ 857 , 858 ], platelets [ 859 , 860 ], whiskers [ 520 , 861 , 862 , 863 ], fibers [ 864 , 865 , 866 , 867 , 868 ], or their chemical composition. Namely, zirconia and PSZ [ 849 , 850 , 851 , 852 , 861 , 869 , 870 , 871 , 872 , 873 , 874 , 875 , 876 , 877 , 878 , 879 , 880 , 881 ], alumina [ 857 , 860 , 882 , 883 , 884 , 885 , 886 , 887 ], titania [ 888 , 889 , 890 , 891 , 892 , 893 , 894 , 895 , 896 ] and their mixtures [ 897 ], other oxides and their mixtures [ 863 , 898 , 899 , 900 ,…”

Section: Biocomposites and Hybrid Biomaterials Containing Capo mentioning

confidence: 99%

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Dorozhkin¹

2015

JFB

129

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The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.

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Section: Biocomposites and Hybrid Biomaterials Containing Capo mentioning

confidence: 99%

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Dorozhkin¹

2015

JFB

129

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“…The trace elements play an important role in the overall physiological functioning, properties and in the osseointegration process [4]. Those biological HAs are ideal materials for bone grafting, maxillofacial surgery * corresponding author; e-mail: ymugesahin@arel.edu.tr and augmentation and as bone fracture healing material in orthopedics [7]. Although, the autogenous type bone grafts are primarily chosen as golden standards for bone grafting, there are still limitations of nding a healthy donor and the possibility of requirement of additional post-surgeries [8].…”

Section: Introductionmentioning

confidence: 99%

Nano-Bioceramic Synthesis from Tropical Sea Snail Shells (Tiger Cowrie - Cypraea Tigris) with Simple Chemical Treatment

et al. 2015

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In this study several bioceramic materials (i.e. hydroxyapatite, whitlockite) were prepared by using chemical synthesis method from sea snail shells (Tiger Cowrie -Cypraea Tigris), originated from Pacic Ocean. Marine shells usually present aragonite-calcite structures and generally, complicated and pressurized equipment is necessary to convert these structures into bioceramics. Instead of using complicated systems, a basic ultrasonic equipment and simple chemical synthesis method was used in the process. DTA analysis was performed to calculate the required amount of H3PO4 solution in order to set the appropriate stoichiometric ratio of Ca/P equal to 1.667 for HA bioceramic or to 1.5 for β-TCP bioceramic in the titration. The prepared batches were sintered at 800 • C and 400• C for hydroxyapatite (HA) and β-tri calcium phosphate (β-TCP) forms respectively. X-ray diraction analysis, scanning electron microscopy (SEM) and infrared observations (FTIR) were implemented for both TCP and HA bioceramics. By applying the chemical synthesis with basic ultrasonic equipment, this study proposes a simple way of production for nano-HA /TCP powders from a natural marine sources.

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“…Summarizing their results; the hardness behavior supported the density data. Besides, the decomposition of HAP to β and α-TCP increased with rising zirconia concentration due to the interaction between CaO with zirconia21.…”

mentioning

confidence: 99%

Physico-mechanical and morphological features of zirconia substituted hydroxyapatite nano crystals

Mansour

El-Dek

Ahmed

2017

Sci Rep

138

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Zirconia doped Hydroxyapatite (HAP) nanocrystals [Ca10(PO4)6−x(ZrO2)x(OH)2]; (0 ≤ x ≤ 1 step 0.2) were synthesized using simple low cost facile method. The crystalline phases were examined by X-ray diffraction (XRD). The crystallinity percentage decreased with increasing zirconia content for the as-synthesized samples. The existence of zirconia as secondary phase on the grain boundaries; as observed from scanning electron micrographs (FESEM); resulted in negative values of microstrain. The crystallite size was computed and the results showed that it increased with increasing annealing temperature. Thermo-gravimetric analysis (TGA) assured the thermal stability of the nano crystals over the temperature from room up to 1200 °C depending on the zirconia content. The corrosion rate was found to decrease around 25 times with increasing zirconia content from x = 0.0 to 1.0. Microhardness displayed both compositional and temperature dependence. For the sample (x = 0.6), annealed at 1200 °C, the former increased up to 1.2 times its original value (x = 0.0).

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Microstructural and Mechanical Properties of Hydroxyapatite–Zirconia Composites

Cited by 50 publications

References 29 publications

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Nano-Bioceramic Synthesis from Tropical Sea Snail Shells (Tiger Cowrie - Cypraea Tigris) with Simple Chemical Treatment

Physico-mechanical and morphological features of zirconia substituted hydroxyapatite nano crystals

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