Sub-oxides with the anti-perovskite structure constitute a large part of interstitial stabilized compounds novel chemical and physical properties, especially in systems containing rare earth elements and/or early transition metal elements. A new sub-oxide compound, (Ce$_{0.85}$Ti$_{0.15}$)Ge$_3$O$_{0.5}$, is synthesized by flux growth. The compound crystallizes cubic which can be considered as ...

We show with first-principles molecular dynamics the persistence of intrinsic $\langle111\rangle$ Ti off-centerings for BaTiO$_3$ in its cubic paraelectric phase. Intriguingly, these are inconsistent Pm$\bar 3$m space group often used to atomistically model this phase using density functional theory or similar methods. Therefore we deploy a systematic symmetry analysis construct representative ...

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-...

Dyl et al. (2011) state that their results confirm the conclusion of J. Simon et al. (2005) that the pyroxene in Wark–Lovering rims (Wark and Lovering, 1977) found on Ca-, Al-rich refractory inclusions has lower Ti/Ti ratios than the primary pyroxene in the interiors of inclusions. While true, the claim is misleading because J. Simon et al. (2005) concluded that there was no Ti in the rims, whe...

Ceramic-matrix composites containing TiC-TiN have been used in a variety of application because of their superior properties such as high hardness, good wear resistance and high chemical stability. In this research, effect of coke and coke/calcium beds in synthesis of Al 2O3-Ti(C, N) composites using alumino-carbothermic reduction of TiO 2 has been investigated. Al, TiO 2 and active ca...

Abstract Uvite, CaMg 3 (Al 5 Mg)(Si 6 O 18 )(BO ) (OH) (OH), is a new mineral of the tourmaline supergroup. It occurs in Facciatoia quarry, San Piero Campo, Elba Island, Italy (42°45?04.55?N, 10°12?50.89?E) at centre narrow (2–3 cm wide) vein composed aggregates dark brown to black tourmaline, penetrating (magnesite + dolomite)-rich hydrothermally altered metaserpentinite. Crystals are euhedral...