Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
MICROSTRUCTURAL CHARACTERISTIC OF NANO CALCIUM PHOSPHATES DOPED WITH FLUORIDE AND TITANIUM IONS
Date
2013-10-31
Author
Gungor, Serap
Evis, Zafer
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
159
views
0
downloads
Cite This
Calcium phosphates (CaP) are frequently used in medical applications due to their high biocompatibility in the human body. In this study, nano-sized CaPs (with Ca/P molar ratios of 1, 1.25, 1.5, 1.67, and 2) doped with titanium (Ti4+) and fluoride (F-) ions were synthesized by a precipitation method and sintered at 1300 degrees C for 1h. These bioceramics were characterized by XRD, FTIR, SEM and micro-hardness. It was observed that high amount of Ti4+ led to a decrease in densification when Ca/P ratio was 1.50 and 2.0 at 1300 degrees C. Densities of the F- addition revealed considerable decreases at 1300 degrees C. According to the SEM results, the average grain sizes of the doped and undoped samples decreased when Ca/P ratio increased. As a result of Vickers microhardness test, Ti4+ ion addition in large amounts decreased the mu-hardness of the samples at 1300 degrees C, except samples with molar ratio of 1.0 and 2.0 at 1300 degrees C.
Subject Keywords
Tetracalcium Phosphate
,
Ceramics
,
Hydroxyapatite
,
Pyrophosphate
,
Bioceramics
,
Kinds
URI
https://hdl.handle.net/11511/55620
Conference Name
Materials Science and Technology Conference and Exhibition (MS&T)
Collections
Department of Engineering Sciences, Conference / Seminar
Suggestions
OpenMETU
Core
EMULSION-BASED PROCESSING AND CHARACTERIZATION OF BIOMIMETIC HYDROXYAPATITE MICROSPHERES BY USING CALCIUM PHOSPHATE CEMENTS
Öndin, Nilsu; Durucan, Caner; Department of Metallurgical and Materials Engineering (2022-11-22)
Synthetic materials for bone defects have been widely used for biomedical applications. One of these materials is bioactive ceramic-based microspheres in the size range of couple 100s m. These microspheres are used for irregular defect filling operations due to high packing efficiency. The spherical shape also increases the surface area, reactivity, and cell adhesion. The osteoconduction (bone tissue growth) is the primary concern for hard-tissue replacements and grafts. Alpha-tricalcium phosphate (-TCP, ...
Biomimetic preparation of HA precursors at 37 degrees C in urea- and enzyme urease-containing synthetic body fluids
Bayraktar, D; Tas, AC (1999-12-01)
An important inorganic phase of synthetic bone applications, calcium hydroxyapatite (HA, Ca-10(PO4)(6)(OH)(2)), was prepared as a single-phase and sub-micron bioceramic powder. Carbonated HA precursors were synthesized from calcium nitrate tetrahydrate and diammonium hydrogen phosphate salts dissolved in "synthetic body fluid" (SBF) solutions, containing urea (H2NCONH2) and enzyme urease, under the biomimetic conditions of 37 degrees C and pH 7.4, by using a novel chemical precipitation technique.
Synthesis of calcium carbonate particles for biomedical applications
Oral, Çağatay Mert; Ercan, Batur; Department of Metallurgical and Materials Engineering (2020)
Calcium carbonate (CaCO3) particles have been widely used in biomedical applications owing to their biocompatibility and biodegradability. In order to effectively utilize CaCO3 particles in biomedical applications, their physical and chemical properties should be systematically controlled. However, this is a challenging task due to the presence of three different anhydrous CaCO3 polymorphs having complex crystallization behavior. In this thesis, CaCO3 particles were synthesized at distinct environments to c...
Nano calcium phosphates doped with titanium and fluoride ions: sinterability and stability of phases
Güngör Geridönmez, Serap; Evis, Zafer; Department of Engineering Sciences (2012)
The purpose of this study was to synthesize calcium phosphates doped with titanium and fluoride ions in different combinations. Pure and doped calcium phosphates were synthesized by a precipitation method. The synthesized materials were sintered at 1100ºC and 1300ºC for 1h. The ceramics were characterized by density measurements to determine the effect of sintering temperature. Presence of phases and bonds were characterized by XRD diffraction and FTIR spectroscopy. Grain sizes of the samples were obtained ...
Stem Cell and Advanced Nano Bioceramic Interactions
Kose, Sevil; Kankilic, Berna; Gizer, Merve; Dede, Eda Ciftci; Bayramlı, Erdal; KORKUSUZ, PETEK; KORKUSUZ, FEZA (2018-01-01)
Bioceramics are type of biomaterials generally used for orthopaedic applications due to their similar structure with bone. Especially regarding to their osteoinductivity and osteoconductivity, they are used as biodegradable scaffolds for bone regeneration along with mesenchymal stem cells. Since chemical properties of bioceramics are important for regeneration of tissue, physical properties are also important for cell proliferation. In this respect, several different manufacturing methods are used for manuf...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. Gungor and Z. Evis, “MICROSTRUCTURAL CHARACTERISTIC OF NANO CALCIUM PHOSPHATES DOPED WITH FLUORIDE AND TITANIUM IONS,” Montreal, CANADA, 2013, vol. 251, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55620.