Journal of the Australian Ceramic Society 

About: Journal of the Australian Ceramic Society is an academic journal published by Springer International Publishing. The journal publishes majorly in the area(s): Ceramic & Microstructure. It has an ISSN identifier of 0004-881X. Over the lifetime, 775 publications have been published receiving 4654 citations.

Comparison of shielding properties of various marble concretes using GEANT4 simulation and experimental data

Abstract: The linear attenuation coefficients (μ) of various marble concretes have been studied in gamma energies 662, 1173, and 1332 keV by using the GEANT4 Monte Carlo simulation. The simulated results were then compared with experimental data, and a good agreement was observed for the concretes involved. The obtained results reveal that the concrete namely NM20 has higher μ and lower transmission factor among the selected concretes.

A review of the additive manufacturing (3DP) of bioceramics: alumina, zirconia (PSZ) and hydroxyapatite

Abstract: The additive manufacturing of bioceramic parts has been investigated since the 1980s. This paper offers an overview of the present achievements in the production of alumina, zirconia and hydroxyapatite parts by means of selective laser sintering/melting of a powder bed or stereolithography. A focus is placed on these specific materials because of their widespread use in the biomedical field. It demonstrates that even though the manufacturing of parts with these processes is possible from pure bioceramics, the use of a binder (or another chemical adjuvant) is required in order to achieve good mechanical properties. Still, improvements in the raw material preparation and in the comprehension of the physical phenomena occurring during the processing remain necessary to be able to prevent the formation of cracks or to be able to control the porosity of the parts.

Influence of modifier oxide on the structural and radiation shielding features of Sm3+-doped calcium telluro-fluoroborate glass systems

Abstract: A sequence of Sm3+-incorporated calcium telluro-fluoroborate glasses by changing the modifier oxide was prepared via the melt-quenching method. The physical, structural, and gamma radiation shielding properties are investigated. XRD spectra confirmed the glassy state. The glasses’ compactness was explored via the structural features like the boron-boron separation, oxygen molar volume, and oxygen packing density. Mechanical and optical properties such as Poisson’s ratio, optical electronegativity, optical basicity, two-photon absorption (TPA) coefficient, and ionic and covalent characters were evaluated and discussed per modifier concentration. The photon attenuation attributes of the glasses were computed by means of the MCNP-5 code. The mass attenuation coefficient (MAC) was simulated in the energy region of 0.015–15 MeV. The highest MAC achieved at gamma energy 0.015 MeV increased from 25.004 to 33.165 cm2g−1 with increasing the CaO ratios between 0 and 40 wt%. Besides, several attenuation factors, such as the mean free path and the radiation protection efficiency, were evaluated connected with the MAC’s simulated values. The study showed that the fabricated glasses’ radiation protection efficiency at 0.5 MeV increased from 33.39 to 39.31, increasing the CaO content from 0 to 40 mol%.

Study of the effect of the Zn 2 + content on the anisotropy and specific absorption rate of the cobalt ferrite: the application of Co 1 − x Zn x Fe 2 O 4 ferrite for magnetic hyperthermia

Abstract: Zn-substituted cobalt ferrite nanoparticles with different zinc contents (Co1 − x Zn x Fe2O4, x = 0.25, 0.5, 0.75) were prepared through a novel combustion method and subsequent milling process. A magnetostriction test was conducted to investigate the migration of Co2+ ions away from the octahedral sites to confirm the decrease of the anisotropy as a result of the increase of the Zn content. The single domain and superparamagnetic behaviors in the obtained samples were analyzed, and their variations by the increase of Zn content were compared. The variations of anisotropy in the vicinity of various Zn contents were accessed, and the specific absorption rate of the obtained samples was estimated. Linear response theory showed that the ratio of the anisotropy energy to the thermal energy, as a dimensionless anisotropy parameter (σ), can have a key role in the specific absorption rate of any magnetic material in hyperthermia applications.

Synthesis and characterization of hydroxyapatite powder from natural Camelus bone

Abstract: This study aims to synthesize and characterize hydroxyapatite (HAp) bio-ceramic powder. Calcination treatment was applied to produce the hydroxyapatite powders from Camelus bone as an eco-friendly and inexpensive source. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission scanning electron microscopy (FESEM) with energy-dispersive X-ray spectrometry (EDS), and atomic force microscopy (AFM) were carried out to characterize the synthesized powder. XRD results showed that material obtained at calcination temperature (1000 °C) is a HAp according to (ICDD 00-024-0033) pattern in a 1.6557 Ca/P molar ratio and the chemical composition is Ca5(PO4)3(OH). The FTIR and Raman spectra confirm the formation of HAp by the presence of peaks corresponding to (PO4)3− and OH− groups, which are of great importance in HAp molecules. The experimental results of FESEM and AFM showed that the shape of the hydroxyapatite particles was irregular with the particle size ranging from 79 nm to 0.9 μm.