The Impact of the Final Sintering Temperature on the Microstructure and Dielectric Properties of BaCaTiO Perovskite Ceramics.

BaCaTiO ceramics were successfully synthesized by a simple solid-state reaction method. This study examined the influence of sintering temperature on the structure, microstructure, dielectric properties and electrical behavior of the material. The XRD analysis reveals that the tetragonal phase (P4mm) is dominant in all the synthesized materials, with those sintered at = 1400 °C and = 1450 °C being single-phase, while others exhibit a minor orthorhombic phase (Pbnm).

Investigation of Piezoelectric Properties in Ca-Doped PbBa(Zr,Ti)O3 (PBZT) Ceramics.

The perovskite-structured materials Pb0.75Ba0.251-xCax(Zr0.

Superconductivity in high-entropy alloy system containing Th.

Th-containing superconducting high entropy system with the nominal composition (NbTa)[Formula: see text](MoWTh)[Formula: see text] was synthesized. Its structural and physical properties were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, specific heat, resistivity and magnetic measurements. Two main phases of alloy were observed: major bcc structure and minor fcc.

Effect of La doping on the structure and cycloidal spin ordering in multiferroic BiFeO.

A series of BiLaFeO samples with 0.00 ≤ x ≤ 0.30 was synthesized by the sol-gel method.

Influence of Powder Milling and Annealing Parameters on the Formation of Cubic LiLaZrO Compound.

Li-ion batteries are widely used as energy storage devices due to their excellent electrochemical performance. The cubic LiLaZrO (c-LLZO) compound is regarded as a promising candidate as a solid-state electrolyte for lithium-ion batteries due to its high bulk Li-ion conductivity, excellent thermal performance, and chemical stability. The standard manufacturing procedure involves the high-temperature and lengthy annealing of powders.

Synthesis and characterization of a novel composites derived from SBA-15 mesoporous silica and iron pentacarbonyl.

Hypothesis: Fe(CO) was deposited on SBA-15 from gaseous phase and the adsorbed iron precursor was oxidized and hydrolyzed. We hypothesize that a novel method produces composites of unique and useful properties. The absence of sulfur and halides in the composites is of special importance with respect of their potential application as catalysts and catalyst supports.

Perinatal outcome according to chorionicity in twins - a Polish multicenter study.

Objectives: The aim of the study was to analyze the perinatal outcome of twin gestations and estimate the influence of chorionicity on the outcome in a large cohort of twin pregnancies in Poland.

Material And Methods: A retrospective analysis of 465 twin deliveries in 6 Polish centers in 2012 was conducted. Baseline characteristics, the course of pregnancy and labor, as well as the neonatal outcome were analyzed in the study group and according to chorionicity.

Magnetoelectric Effect in Ceramics Based on Bismuth Ferrite.

Solid-state sintering method was used to prepare ceramic materials based on bismuth ferrite, i.e., (BiFeO3)1 - x -(BaTiO3) x and Bi1 - x Nd x FeO3 solid solutions and the Aurivillius Bi5Ti3FeO15 compound.

Complementary role of magnetic resonance imaging after ultrasound examination in assessing fetal renal agenesis: a case report.

Introduction: Ultrasonography is used routinely during pregnancy to screen and detect fetal abnormalities. However, there are some conditions like anhydramnios (a prevalent state in renal agenesis) or maternal obesity that may limit the diagnostic accuracy of ultrasonography. Magnetic resonance imaging has proven to be useful when ultrasound alone is insufficient to make a correct diagnosis.