Depending on the coating method utilized and subsequent heat treatments (such as through the use of plasma-spray deposition), inter-diffusion of atomic species across titanium (Ti) and hydroxyapatite (HA) coatings may result. These events may lead to structural and compositional changes that consequently cause unanticipated HA phase transformations which may clearly influence the performance of...

We extend our previous first-principles theory for perovskite ferroelectric phase transitions to treat also antiferrodistortive phase transitions. Our approach involves construction of a model Hamiltonian from a Taylor expansion, first-principles calculations to determine expansion parameters, and Monte Carlo simulations to study the resulting system. We apply this approach to three cubic perov...

Oxygen octahedral tilting significantly reduces the symmetry of perovskites and changes transport properties perovskite magnetic tunnel junctions (MTJs). We investigated ${\mathrm{SrRuO}}_{3}/{\mathrm{CaTiO}}_{3}/{\mathrm{SrRuO}}_{3}$ MTJs by first-principles simulation predicted an intriguing coupling between oxygen tunneling magnetoresistance. obtained higher spin polarization at Fermi level ...

Biodegradable elastomeric materials are gaining extensive attention in the field of soft tissue engineering. Poly (glycerol sebacate) (PGS) is a novel biocompatible elastomer in this scope. However this polymer has poor mechanical properties especially when the molar ratio of glycerol is higher than sebacic acid. Calcium Titanate (CaTiO3) is a biocompatible ceramic with some degr...

Thin films of pure and self-deficient calcium titanites i.e., CaTiO$_3$, Ca$_{1-\alpha}$TiO$_3$, CaTi$_{1-\beta}$O$_3$ CaTiO$_{3-\gamma}$ have been deposited on ITO substrate using dip coating method. X-ray diffraction Scanning electron Microscopy (SEM) analysis confirm the structural morphology all thin films. Photocurrent measurement has done, it is observed that during incidence UV light as-...

An Sm 3+ and A-site vacancy doped CaTiO 3 phosphors, which demonstrate larger PL intensity than phosphors without vacancies. The formation of V A ordering enables the exchange charge between [Ca/V O n ] [CaO 12 clusters for enhanced properties.

Introduction: Calcium-aluminum-rich inclusions (CAIs) from the metal-rich (CH/CB-like) carbonaceous chondrite Ish-eyevo are mineralogically pristine and show no evidence for postcrystallization alteration [1]. Many of them are composed of very refractory minerals, such as hibonite (CaAl 12 O 19), grossite (CaAl 4 O 7), aluminum-rich pyroxene, and perovskite (CaTiO 3). We will present oxygen iso...

Abstract The interface incompatibility between organic polymer and inorganic ceramic filler is a common phenomenon in polymer-based dielectric composites. In this paper, the Ar/CF 4 plasma used to modify CaTiO 3 particles, which improved dispersion of its compatibility with polytetrafluoroethylene (PTFE). findings demonstrate that growing argon (Ar) flow rate was beneficial enhance discharge in...