The effect of citric acid on the sintering of calcium phosphate bioceramics

Mitsionis, Anastasios; Vaimakis, T.; Trapalis, C.

doi:10.1016/j.ceramint.2009.09.034

Cited by 35 publications

(31 citation statements)

References 41 publications

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“…Poorly crystalline HA phase has evolved along with CaCO 3 on 400°C calcination. The less amount of Ca-citrate existed in the as-synthesized powder has reacted with atmospheric oxygen and formed CaCO 3 according to the following reaction [31] …”

Section: Discussionmentioning

confidence: 99%

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Kumar

Girija

Thamizhavel

et al. 2010

Journal of Colloid and Interface Science

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Section: Discussionmentioning

confidence: 99%

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Kumar

Girija

Thamizhavel

et al. 2010

Journal of Colloid and Interface Science

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“…This may be helpful to elucidate the combustion reaction mechanism. Only the anti-symmetric stretching vibration band of carboxylate ion related to citric acid are situated at 1627 cm -1 , while the lower strength of the symmetric band at about 1400 cm -1 is covered up partially by characteristic band of N-O 22 . 3.…”

Section: Ftir Studymentioning

confidence: 95%

Spectrally selective Cu_1.5Mn_1.5O₄ spinel ceramic pigments for solar thermal applications

Geng

Gao

et al. 2016

RSC Adv.

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In this work, Cu 1.5 Mn 1.5 O 4 spinel ceramic pigments have been successfully prepared by a facile and cost-effective sol-gel self-combustion method and annealed at the temperature ranging from 500 °C to 900 °C for 1 h. The reaction process was discussed in detail through thermal analysis, X-ray diffraction (XRD), and fourier transformation infrared spectroscopy (FTIR) techniques. The optical properties of the ceramic pigments annealed at various temperatures were also determined from the corresponding diffuse reflectance spectra in the 2.5-20 µm range, which elucidated that the optimum spectrally selective paint coatings could be fabricated according to the pre-selection ceramic pigments. Ceramic pigments were utilized to fabricate the thickness sensitive spectrally selective (TSSS) paint coatings by means of the convenient and practical spray-coating technique, and TSSS paint coatings based on pigments annealed at 700 °C showed absorptance of α s =0.914-0.923 and emittance of ε T =0.244-0.357. Besides, thermal stability tests were carried out by prolonged and extended accelerated thermal investigation at 227 °C. TSSS paint coatings exhibited no observable visual changes and the performance criterion (PC) values reached the qualified requirement. IntroductionDuring the last decades, the transition metal oxides with spinel structure have attracted significant attention due to their unique properties such as chemical inertness, high corrosion resistance, high mechanical strength, good thermal shock resistance, excellent optical and catalytic properties, emerging their potential applications ranging from optics, electronics, magnetism, and catalysis to energy conversion and storage 1-5 . In particular, the feature endows this material with promising application as solar selective absorber in solar-thermal energy conversion systems 6, 7 . From the viewpoint of practical application, the solar absorber materials employed in low-to-mid temperature domain such as plate solar collectors exhibits a high solar absorptance in the UV-Vis-NIR solar spectrum and a low thermal emittance in the IR wavelength region 8 .Many research efforts have been devoted to the preparation of the ternary and the binary spinel compounds serving as the solar-absorbing materials in the last decades, for instance, CuFeMnO x , CuCoMnO x , CuMnO x spinels and Cu x Co y O z spinel-like 9 .Kaluža and co-workers have succeeded in fabricating the black colored CuFeMnO 4 spinel powders and CuFeMn-oxide/SiO 2 film using sol-gel process at the heat-treatment temperature of 500 °C 10 . The prepared film was composed of the

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“…For the solid prepared at 60 C (Fig. 4), after the first weight loss about 100 C due to the removal of surface humidity, different weight losses in the temperature range of 100-600 C were observed for the dehydration of OCP [18,[22][23][24][25], which was the main calcium phosphate present in these solids. Remaining calcite showed an intense weight loss at about 610 C, followed by the decarbonation of CAP at 750 C. No further weight loss was observed up to 1200 C for these two solids.…”

Section: Cap From Calcite and Orthophosphoric Acid -Tg Characterizationmentioning

confidence: 99%

Carbonated hydroxyapatite starting from calcite and different orthophosphates under moderate hydrothermal conditions: Synthesis and surface reactivity in simulated body fluid

Minh

Nzihou

Sharrock

2014

Materials Research Bulletin

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The one-step synthesis of carbonated hydroxyapatite (CAP) using calcite and different orthophosphates was investigated in a closed batch reactor. Only orthophosphoric acid could lead to the complete decomposition of calcite particles, when the reaction temperature was set at 80 C. On the other hand, the reaction time and the dilution of the initial calcite suspension had no significant influence on the formation of the solid products. CAP was formed as the main crystalline calcium phosphate with the carbonate content in the range of 4.2-4.6 wt.%. The thermal decarbonation of the synthesized CAP started at 750 C but it was only significant at 1000 C under air atmosphere. This thermal decarbonation was total at 1200 C or above. All CAP samples and products following thermal treatments were found bioactive in the test using simulated body fluid (SBF) solution.

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The effect of citric acid on the sintering of calcium phosphate bioceramics

Cited by 35 publications

References 41 publications

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Spectrally selective Cu_1.5Mn_1.5O₄ spinel ceramic pigments for solar thermal applications

Carbonated hydroxyapatite starting from calcite and different orthophosphates under moderate hydrothermal conditions: Synthesis and surface reactivity in simulated body fluid

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The effect of citric acid on the sintering of calcium phosphate bioceramics

Cited by 35 publications

References 41 publications

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Synthesis and characterization of bioactive hydroxyapatite–calcite nanocomposite for biomedical applications

Spectrally selective Cu1.5Mn1.5O4 spinel ceramic pigments for solar thermal applications

Carbonated hydroxyapatite starting from calcite and different orthophosphates under moderate hydrothermal conditions: Synthesis and surface reactivity in simulated body fluid

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Product

Resources

About

Spectrally selective Cu_1.5Mn_1.5O₄ spinel ceramic pigments for solar thermal applications