Jun Takada

TL;DR: Partial substitution of Pb for Bi in the Bi-Sr-Ca-Cu-O system has been found to sharply increase the volume fraction of the high-Tc phase when both the starting material (coprecipitated oxalate being used in the present study) and the heating process are appropriate as mentioned in this paper.

TL;DR: In this article, the influence of the co-precipitation processes on the magnetic properties, the shape and the surface oxidation of nano-sized magnetite particles was investigated, and the effect of the oxidizing agent ratio and the Oswalt ripening on the magnetite particle shape and size was clarified.

TL;DR: In this paper, ZnII porphyrin was used as a catalysts for the synthesis of cyclic carbonates from epoxides and CO2 under solvent-free conditions.

TL;DR: In this paper, the characteristics of characteristic iron oxide sheaths which the iron oxidizing bacteria Leptothrix ochracea (L. oceracea) formed were studied in order to make clear their morphology microstructure, chemical composition, and crystal structure through scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), and XRD.

TL;DR: In this article, the magnetic properties of La-Co substituted M-type strontium hexaferrites were studied by measuring M-H curves with vibrating sample magnetometer (VSM) and showed typical magnetic hysteresis of hard ferrite.