Dy.sub.2O.sub.3 particles of a nanoparticle scale have beneficial properties for ceramic and electronic uses. Disclosed herein are moderately dispersed Dy.sub.2O.sub.3 particles having regular morphology and lateral size ranging from about 10 nm to 1 m. The Dy.sub.2O.sub.3 particles may exhibit a narrow particle size distribution such that the difference between D.sub.10 and D.sub.90 is about 0.1 m to 1 m. Further disclosed are processes of producing these moderately dispersed Dy.sub.2O.sub.3 particles. These processes do not include grinding to obtain the particles. Also disclosed herein are uses for these Dy.sub.2O.sub.3 particles.

This invention has an object to provide a method for producing a beryllium solution by dissolving beryllium oxide, the method being novel and having high energy efficiency. A production method (M10) for producing a beryllium solution includes a main heating step (S13) of dielectrically heating an acidic solution containing beryllium oxide to generate a beryllium solution.

This invention has an object to provide a method for producing a beryllium solution by dissolving beryllium oxide, the method being novel and having high energy efficiency. A production method (M10) for producing a beryllium solution includes a main heating step (S13) of dielectrically heating an acidic solution containing beryllium oxide to generate a beryllium solution.

A superconducting material is described. The superconducting material includes a rare-earth barium copper oxide (ReBCO) matrix, 0.01 to 0.5 weight percentage (wt. %), WO.sub.3 nanoparticles, based on the total weight of superconducting material, and 0.01 to 0.5 wt. % barium titanate nanoparticles, based on the total weight of superconducting material. A method of making superconducting material is also described. The method includes mixing WO.sub.3 nanoparticles, barium titanate nanoparticles, and ReBCO particles to form a particulate mixture; pressing the particulate mixture at a pressure of 500 to 1000 megapascals (MPa) to form a solid sample; and heating the solid sample at 800 to 1100 degrees centigrade ( C.) for 1 to 24 hours to form the superconducting material.

A superconducting material is described. The superconducting material includes a rare-earth barium copper oxide (ReBCO) matrix, 0.01 to 0.5 weight percentage (wt. %), WO.sub.3 nanoparticles, based on the total weight of superconducting material, and 0.01 to 0.5 wt. % barium titanate nanoparticles, based on the total weight of superconducting material. A method of making superconducting material is also described. The method includes mixing WO.sub.3 nanoparticles, barium titanate nanoparticles, and ReBCO particles to form a particulate mixture; pressing the particulate mixture at a pressure of 500 to 1000 megapascals (MPa) to form a solid sample; and heating the solid sample at 800 to 1100 degrees centigrade ( C.) for 1 to 24 hours to form the superconducting material.