A method can include milling a plurality of silicon particles to form a plurality of milled silicon particles. The milled silicon particles can optionally include collecting the milled silicon particles, powdering the milled silicon particles, and milling the milled silicon particles a second time.

A method can include milling a plurality of silicon particles to form a plurality of milled silicon particles. The milled silicon particles can optionally include collecting the milled silicon particles, powdering the milled silicon particles, and milling the milled silicon particles a second time.

A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.

A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.

The present invention relates to a system and process carried out after a process of separating fragments of steel from pieces of ore that come out of a semi-autogenous grinder for grinding ores, and which consists of a system formed by one or more instruments for capturing images, each one being sensitive to light of different wavelengths, which point to the surface of an element for receiving the steel fragments or a channel that receives the steel balls and the fragments thereof from the separation process, through which the steel balls and fragments thereof move when they are discharged from this process, with the possibility of directing each image sensor such that it is not parallel to the others.

By digitally processing the images obtained with the one or more sensors, the dimensions and morphology of the balls and ball fragments discharged from the separation process can be determined.

A method of manufacturing an inorganic material includes: a step (A) of preparing a first inorganic material as a raw material; and a step (B) of obtaining a second inorganic material by crushing the first inorganic material using a ball mill to obtain fine particles of the first inorganic material, the ball mill including a cylindrical container and crushing balls, in which the step (B) includes a step (B1) of putting the first inorganic material and the crushing balls into the cylindrical container and subsequently rotating the cylindrical container about a cylindrical shaft and a step (B2) of moving the cylindrical container such that the first inorganic material moves in the cylindrical shaft direction.

A method of manufacturing an inorganic material includes: a step (A) of preparing a first inorganic material as a raw material; and a step (B) of obtaining a second inorganic material by crushing the first inorganic material using a ball mill to obtain fine particles of the first inorganic material, the ball mill including a cylindrical container and crushing balls, in which the step (B) includes a step (B1) of putting the first inorganic material and the crushing balls into the cylindrical container and subsequently rotating the cylindrical container about a cylindrical shaft and a step (B2) of moving the cylindrical container such that the first inorganic material moves in the cylindrical shaft direction.

A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.

A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.

Nano-structures of Aluminum Nitride and a method of producing nano-structures of Aluminum Nitride from nut shells comprising milling agricultural nuts into a fine nut powder, milling nanocrystalline Al.sub.2O.sub.3 into a powder, mixing, pressing the fine nut powder and the powder of nanocrystalline Al.sub.2O.sub.3, heating the pellet, maintaining the temperature of the pellet at about 1400° C., cooling the pellet, eliminating the residual carbon, and forming nano-structures of AlN. An Aluminum Nitride (AlN) product made from the steps of preparing powders of agricultural nuts using ball milling, preparing powders of nanocrystalline Al.sub.2O.sub.3, mixing the powders of agricultural nuts and the powders of nanocrystalline Al.sub.2O.sub.3 forming a homogenous sample powder of agricultural nuts and Al.sub.2O.sub.3, pressurizing, pyrolyzing the disk, and reacting the disk and the nitrogen atmosphere and forming AlN.