Effects of Calcination on the Crystallography and Nonbiogenic Aragonite Formation of Ark Clam Shell under Ambient Condition

Loy, Chee Wah; Матори, Хамирул Амин; Lim, Way Foong; Schmid, Siegbert; Zainuddin, Norhazlin; Wahab, Zaidan Abdul; Alassan, Zarifah Nadakkavil; Zaid, Mohd Hafiz Mohd

doi:10.1155/2016/2914368

Cited by 23 publications

(15 citation statements)

References 35 publications

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“…On the other hands, the calcined SnS p depicts the characteristics IR bands at 1416 and 866 cm -1 intensity. These peaks correspond to CaO formation which is in line with the work of Loy et al (29). In addition, a sharp peak of Ca(OH) 2 absorption was noticed with calcined SnS p sample at 3644.26 cm -1 (29,39).…”

Section: Fourier Transform Infrared (Tir) Analysis Of Reinforcement Msupporting

confidence: 88%

“…These peaks correspond to CaO formation which is in line with the work of Loy et al (29). In addition, a sharp peak of Ca(OH) 2 absorption was noticed with calcined SnS p sample at 3644.26 cm -1 (29,39). This may be attributed to high reactivity and affinity for moisture of CaO as a result of its hygroscopic nature when exposed at the time of characterization (30).…”

Section: Fourier Transform Infrared (Tir) Analysis Of Reinforcement Msupporting

confidence: 88%

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Influence of calcined snail shell particulates on mechanical properties of recycled aluminium alloy for automotive application

et al. 2020

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Nowadays, low-cost particulate reinforced metal matrix composites with improve mechanical properties are highly sought in various industrial and critical engineering applications including automotive and aerospace sectors. Meanwhile, increasing consumption rate of African giant land snail (Archachatina marginata) had been posing disposal challenges of its shells. Therefore, this paper tends to investigates the influence of waste snail shells particulates on the physical and mechanical properties of recycled aluminum- silicon alloy matrix. Different weight proportions i.e. (0 - 7.5) wt% of calcined snail shell particles at an interval of 1.5 wt% were successfully incorporated into Al-Si alloy matrix melted at 750 ?C using stir-casting route. The microstructure, physical and mechanical properties of the resulting composites were examined and presented. Microstructural examination shows fairly uniform dispersion of snail shell particles in the aluminium alloy matrix intermingled with aluminium-silicon dendrites. Mechanical properties such as hardness, impact, compressive and tensile strengths increased with increasing addition of calcined snail shell particulate up to 6 wt% while density and elongation decreases. The total equivalent density reduction of 5.4% in composites compared to unreinforced alloy was obtained at 7.5 wt% snail shell addition. The maximum hardness, impact, compressive and tensile strengths obtained are 118?4 HV, 88 J, 552?20 MPa and 211 ? 4.8 MPa equivalent to 21, 25, 19 and 36 percent increase respectively relative to un-reinforced aluminium-silicon alloy. Hence, mechanical and physical properties of Al-Si alloy can be enhanced using calcined snail shell particulates which can widen its application in automotive industries.

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Section: Fourier Transform Infrared (Tir) Analysis Of Reinforcement Msupporting

confidence: 88%

Section: Fourier Transform Infrared (Tir) Analysis Of Reinforcement Msupporting

confidence: 88%

Influence of calcined snail shell particulates on mechanical properties of recycled aluminium alloy for automotive application

et al. 2020

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“…The presence of moisture allow the CaO easily absorbed it and form of Ca(OH). As the result, the CaO sample cannot keep expose to environment in long time to avoid the CaO with moisture to become Ca(OH) 2 (Loy et al 2016 ). Due to this reaction, the result may affects the characteristic of CaO.…”

Section: Resultsmentioning

confidence: 99%

The usability of ark clam shell (Anadara granosa) as calcium precursor to produce hydroxyapatite nanoparticle via wet chemical precipitate method in various sintering temperature

et al. 2016

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This paper reported the uses of ark clam shell calcium precursor in order to form hydroxyapatite (HA) via the wet chemical precipitation method. The main objective of this research is to acquire better understanding regarding the effect of sintering temperature in the fabrication of HA. Throughout experiment, the ratio of Ca:P were constantly controlled, between 1.67 and 2.00. The formation of HA at these ratio was confirmed by means of energy-dispersive X-ray spectroscopy analysis. In addition, the effect of sintering temperature on the formation of HA was observed using X-ray diffraction analysis, while the structural and morphology was determined by means of field emission scanning electron microscopy. The formation of HA nanoparticle was recorded (~35–69 nm) in the form of as-synthesize HA powder. The bonding compound appeared in the formation of HA was carried out using Fourier transform infrared spectroscopy such as biomaterials that are expected to find potential applications in orthopedic and biomedical industries .

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“…7. The bands at 1406, 862, and 710 cm -1 correspond to the asymmetric C=O stretching, showing a bond between the oxygen atom of the carbonate and the calcium atom [49]. The extra stretching of Ca-O at ~407 cm -1 indicates the formation of calcium oxide.…”

Section: Fourier Transforms Infrared Spectroscopymentioning

confidence: 99%

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

Putkham¹,

Chuakham²,

Chaiyachet³

et al. 2022

Journal of Renewable Materials

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The valorization of eggshell waste as bio-calcium oxide is crucial for pollution prevention and supporting sustainable development. There are several reports on the thermal conversion of eggshell waste to calcium oxide for the partial or complete substitution of natural lime applications. However, this paper reports the thermal decomposition of large amounts of hatchery eggshell waste on an industrial-scale car bottom furnace for the first time. The hatchery eggshell waste was sundried and placed into five stacked trays in the car bottom furnace. The calcination of the eggshell waste was conducted at 900°C for 3 and 4 h under an atmosphere of air. Both the physical and chemical properties of the eggshell samples and the bio-quicklime products were carefully examined by TGA, SEM, XRD, FTIR, and XRF. The results demonstrate that the purity of calcium oxide in the quicklime products increased from 79% to 87% upon increasing the calcination time from 3 to 4 h. However, the color of the calcined eggshell samples at the surface of the pile was white while the color of the product beneath the surface was black or dark gray. The purity of the calcium oxide of both the black and white calcined samples was 76.4% and 91.5%, respectively. These results indicate the limited efficacy of the car bottom furnace for thermal decomposition of the large amount of eggshell waste to calcium oxide. Additionally, the production cost of bio-calcium oxide is approximately twice the cost of industrial grade lime. For further industrial applications, the furnace should contain the mixing equipment for improving the thermal decomposition of the large pile of eggshell waste. Furthermore, the oil burner system may be used in order to reduce fuel costs.

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Effects of Calcination on the Crystallography and Nonbiogenic Aragonite Formation of Ark Clam Shell under Ambient Condition

Cited by 23 publications

References 35 publications

Influence of calcined snail shell particulates on mechanical properties of recycled aluminium alloy for automotive application

Influence of calcined snail shell particulates on mechanical properties of recycled aluminium alloy for automotive application

The usability of ark clam shell (Anadara granosa) as calcium precursor to produce hydroxyapatite nanoparticle via wet chemical precipitate method in various sintering temperature

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

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