Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A joint between at least one element of metal material and at least one element of plastic material is obtained by pressing these elements in contact against each other, with a simultaneous application of heat. A cladding of metal material and/or of plastic material is applied above the joint by additive manufacturing technology.

Abstract: A joint between at least one element of metal material and at least one element of plastic material is obtained by pressing these elements in contact against each other, with a simultaneous application of heat. A cladding of metal material and/or of plastic material is applied above the joint by additive manufacturing technology.

Abstract: A welded joint between at least one metal material element and at least one thermoplastic material element is obtained by pressing the elements against each other while applying heat. Contact surfaces of the metal material, which are in contact with the thermoplastic material, are provided with uneven surface portions having a distribution of asperities. With heat applied, the thermoplastic material fills spaces between these asperities and maintains this configuration after subsequent cooling, thereby improving strength of the joint. The uneven surface portions are obtained in a preliminary forming step of the metal material in a press mold, which is configured with a forming surface for generating the uneven surface portions by mechanical deformation and/or with a device for guiding a laser or electron beam. By this technique, hybrid components are obtained made of one or more elements of metal material between which a shaped component of thermoplastic material is interposed.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A welded joint between at least one metal material element and at least one thermoplastic material element is obtained by pressing the elements against each other while applying heat. Contact surfaces of the metal material, which are in contact with the thermoplastic material, are provided with uneven surface portions having a distribution of asperities. With heat applied, the thermoplastic material fills spaces between these asperities and maintains this configuration after subsequent cooling, thereby improving strength of the joint. The uneven surface portions are obtained in a preliminary forming step of the metal material in a press mould, which is configured with a forming surface for generating the uneven surface portions by mechanical deformation and/or with a device for guiding a laser or electron beam. By this technique, hybrid components are obtained made of one or more elements of metal material between which a shaped component of thermoplastic material is interposed.

Abstract: A nanoporous polymeric membrane is obtained by bombing a polymer film by means of high energy focused heavy ion beams and subsequently performing chemical etching to remove the portions of the polymer film in the zones degraded by the ion bombing, in such a manner to obtain pores passing through the polymer film. The heavy ion bombing is performed after interposing between the source of ions and the polymer film, adjacent to the film, an amplitude mask having an ordered arrangement of nanopores and having sufficient thickness to prevent the passage of the heavy ions that are not directed through the pores of said amplitude mask, in such a manner to obtain in the polymer fill an ordered arrangement of nanopores having an aspect-ratio at least exceeding 10 and preferably exceeding 100.

Abstract: Described herein is a method for producing a nanocomposite material, including nanofillers dispersed in a polymeric matrix. The method comprises the steps of: a) providing a starting thermoplastic polymeric material, having a crystalline structure; b) providing one or more precursors of the nanofillers; c) bringing the starting thermoplastic polymeric material into the molten state and dispersing the precursor or precursors therein; d) subjecting the precursor or precursors to in situ thermolysis, thereby generating the nanofillers directly within the melted material; and e) causing solidification of the molten polymeric material including the nanofillers, thereby obtaining the nanocomposite material. The precursor or the precursors are selected from among carbonates and acetylacetonates and the thermoplastic polymeric material is isotactic polypropylene.

Abstract: A nanoporous polymeric membrane is obtained by bombing a polymer film by means of high energy focused heavy ion beams and subsequently performing chemical etching to remove the portions of the polymer film in the zones degraded by the ion bombing, in such a manner to obtain pores passing through the polymer film. The heavy ion bombing is performed after interposing between the source of ions and the polymer film, adjacent to the film, an amplitude mask having an ordered arrangement of nanopores and having sufficient thickness to prevent the passage of the heavy ions that are not directed through the pores of said amplitude mask, in such a manner to obtain in the polymer fill an ordered arrangement of nanopores having an aspect-ratio at least exceeding 10 and preferably exceeding 100.

Abstract: Described herein is a method for producing a nanocomposite material, including nanofillers dispersed in a polymeric matrix. The method comprises the steps of: a) providing a starting thermoplastic polymeric material, having a crystalline structure; b) providing one or more precursors of the nanofillers; c) bringing the starting thermoplastic polymeric material into the molten state and dispersing the precursor or precursors therein; d) subjecting the precursor or precursors to in situ thermolysis, thereby generating the nanofillers directly within the melted material; and e) causing solidification of the molten polymeric material including the nanofillers, thereby obtaining the nanocomposite material. The precursor or the precursors are selected from among carbonates and acetylacetonates and the thermoplastic polymeric material is isotactic polypropylene.

Abstract: Described herein are a method and a device for determining the relative position of two elements that are mobile with respect to one another, in which connected to a first element is a source of a field of forces and connected to a second element is a meter, designed to measure the field of forces and to supply, instant by instant and as a function of the measurement made, a response identifying the relative position of the first element with respect to the second element at that instant, the meter being provided with at least three field sensors arranged in respective distinct points of the second element, and the response being obtained by comparing with one another the outputs corresponding to that instant.

Abstract: A method for manufacturing magnetic field detection devices comprises the operations of manufacturing a magneto-resistive element comprising regions with metallic conduction and regions with semi-conductive conduction. The method comprises the following operations: forming metallic nano-particles to obtain regions with metallic conduction; providing a semiconductor substrate; and applying metallic nano-particles to the porous semiconductor substrate to obtain a disordered mesoscopic structure. A magnetic device comprises a spin valve, which comprises a plurality of layers arranged in a stack which in turn comprises at least one free magnetic layer able to be associated to a temporary magnetisation (MT), a spacer layer and a permanent magnetic layer associated to a permanent magnetisation (MP). The spacer element is obtained by means of a mesoscopic structure of nanoparticles in a metallic matrix produced in accordance with the inventive method for manufacturing magneto-resistive elements.

Abstract: The system allows the generation and distribution of energy on board a motor vehicle provided with a propulsion unit, a tank for fuel at least one distribution network or line for electric energy, electrical energy generation devices connected to the at least one distribution network or line, and a plurality of selectively activatable electrical utilizer devices or apparatus connected or connectable to the at least one distribution network or line. The electrical energy generator devices includes (at least) a microcombustor electricity generator matrix or battery connected to the fuel tank, and a supervision and control unit associated with this generator matrix or battery and coupled to the distribution network or line and arranged to control the operation of the generator matrix or battery in a predetermined manner as a function of the electrical power required or consumed by the network or line.

Abstract: A method for manufacturing magnetic field detection devices comprises the operations of manufacturing a magneto-resistive element comprising regions with metallic conduction and regions with semi-conductive conduction. The method comprises the following operations: forming metallic nano-particles to obtain regions with metallic conduction; providing a semiconductor substrate; and applying metallic nano-particles to the porous semiconductor substrate to obtain a disordered mesoscopic structure. A magnetic device comprises a spin valve, which comprises a plurality of layers arranged in a stack which in turn comprises at least one free magnetic layer able to be associated to a temporary magnetisation (MT), a spacer layer and a permanent magnetic layer associated to a permanent magnetisation (MP). The spacer element is obtained by means of a mesoscopic structure of nanoparticles in a metallic matrix produced in accordance with the inventive method for manufacturing magneto-resistive elements.

Abstract: A method for manufacturing magnetic field detection devices comprises the operations of manufacturing a magneto-resistive element comprising regions with metallic conduction and regions with semi-conductive conduction. The method comprises the following operations: forming metallic nano-particles to obtain regions with metallic conduction; providing a semiconductor substrate; and applying metallic nano-particles to the porous semiconductor substrate to obtain a disordered mesoscopic structure. A magnetic device comprises a spin valve, which comprises a plurality of layers arranged in a stack which in turn comprises at least one free magnetic layer able to be associated to a temporary magnetisation (MT), a spacer layer and a permanent magnetic layer associated to a permanent magnetisation (MP). The spacer element is obtained by means of a mesoscopic structure of nanoparticles in a metallic matrix produced in accordance with the inventive method for manufacturing magneto-resistive elements.

Abstract: An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption ? that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption ? being defined as ?=1????, where ? is the spectral reflectance and ? is the spectral transmittance of the emitter.

Abstract: A thin-film device for detecting the variation of intensity of physical quantities, in particular a magnetic field, in a continuous way, comprises an electrical circuit including one or more sensitive elements, which are designed to vary their own electrical resistance as a function of the intensity of a physical quantity to be detected. One or more of the sensitive elements comprise at least one nanoconstriction, and the nanoconstriction comprises at least two pads made of magnetic material, associated to which are respective magnetizations oriented in directions substantially opposite to one another and connected through a nanochannel. The nanochannel is able to set up a domain wall that determines the electrical resistance of the nanoconstriction as a function of the position, with respect to the nanochannel, of the domain wall formed in the sensor device.

Abstract: A magnetic pressure sensing device for rotatably moving parts, of the type including at least one magnetic field source element associated with the rotatably moving part and a magnetic field sensing element associated to a fixed part to measure parameters of a magnetic field determined by the magnetic field source element, the parameters of the magnetic field being a function of the pressure applied to the rotatably moving part. The magnetic field source element includes a device for rotating around at least one axis the direction of the magnetic field as a function of the pressure applied to the rotatably moving part.