The present invention relates to a method for producing tetrahydridoborate salts with high efficiency at low cost. The method for the production of metal borohydride salts according to the present invention comprises the steps of providing an anhydrous metal borate salt and milling the anhydrous metal borate salt in the presence of a metal material based on magnesium or magnesium alloys in a hydrogen atmosphere at a temperature and for a time sufficient to produce the metal borohydride salt. In another embodiment of the invention, the method for the production of metal borohydride salts according to the present invention comprises the steps of providing an hydrated metal borate salt and milling the hydrated metal borate salt in the presence of a metal material based on magnesium or magnesium alloys in an inert gas atmosphere at a temperature and for a time sufficient to produce the metal borohydride salts. In a still further embodiment of the invention, the metal material based on magnesium or magnesium alloys is a secondary magnesium material, preferably a Class 2, Class 3, or Class 6 secondary magnesium material.

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.

One general aspect of the present disclosure is directed to a method of manufacturing a lithium containing nano powder. An additional general aspect of the present disclosure relates to a system for manufacturing the lithium containing nano powder. A further general aspect of the present disclosure pertains to the lithium containing nano powder. A further general aspect of the present disclosure relates to converting a plurality of metals, a plurality of metal oxides, or a combination thereof into a mechanical alloy using the manufacturing method and system of the present disclosure. The mechanical alloy may be a powder, e.g., a nano powder, and may or may not include the lithium containing nano powder.

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 invention illustrates and describes a laboratory vibratory mill with at least one milling beaker holder which is mounted so as to be capable of oscillating, for at least one milling beaker, and with a temperature control device for controlling the temperature of the milling beaker by feeding in and/or carrying away a liquid or gaseous temperature control medium via at least one temperature control line to the milling beaker holder. According to the invention there is provision that the milling beaker holder has at least one heat transfer element which is connected to the temperature control line, wherein the heat transfer element has at least one medium duct for feeding through the temperature control medium, and wherein the temperature control of a milling beaker which is secured to and/or in the milling beaker holder is carried out by transferring heat between the temperature control medium conducted in the medium duct and the milling beaker via a wall of the heat transfer element.

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 device module for a laboratory device is shown and described. The device module has at least one temperature control medium connection for connecting the device module, as required, to a temperature control medium supply of, in particular, a liquid or gaseous temperature control medium, at least one line connection for connecting, as required, to at least one supply line of the laboratory device for the temperature control medium, and at least one actuator of a control process and/or control loop for controlling and/or regulating at least one temperature in the laboratory device.

The invention relates to biocomposites comprising a polymeric matrix and a magnesium filler such as a water soluble magnesium salt. The use of elemental magnesium or magnesium alloy in the biocomposite is minimized and preferably avoided. The magnesium biocomposites can be used as bone implants.

A unit for grinding biological samples, comprising a grinding device including at least two tubes having different volumes, suitable for being mounted on a support of the grinding device, each tube comprising an inner space having a height (h) along the axis of the corresponding tube, and being intended to contain samples to be ground, means for driving the support in a precession movement, the support having an axis the position of which varies by describing a cone, each tube being subjected to a movement (d) defined by the projection, onto the axis of said cone, of the distance between the extreme positions of a same point of the tube during the precession movement.

A coating layer for electronic device and an electronic device are provided. The coating layer includes a composite of chambersite and a metal.