Abstract: The method makes it possible to produce a decorated element for a timepiece or piece of jewelry. This decorated element may be, for example, a watch dial. The method includes the steps of taking a base substrate, and micromachining on said base substrate a mold or decorative partitions in a programmed pattern, and filling the mold or the decorative partitions with at least one filler material to obtain the decorated element. The filler material may be an epoxy resin and the mold or the partitions are obtained by melting and solidifying a solder paste or powder.

Abstract: A process for assembling a device including first and second parts made of first and second materials, respectively, and a third part made of a third material that acts as an intermediate part enabling the assembling, the process including: providing a preform made from an at least partially amorphous metal material capable of increasing its volume under temperature and pressure conditions; placing the first and second parts with the preform between two cavity plates having, the negative shape of the device; heating the assembly to a temperature between the glass transition temperature and the crystallization temperature of the preform to enable, at latest during the heating, the preform to be in a form of a foam and enable expansion of the preform to fill the negative shape of the device and form the third part; cooling the assembly to solidify the preform and separate the device from the cavity plates.

Abstract: A device including a first portion made of a first material and a second portion made of a second material, the second part extends from one of faces of the first portion and is made of an amorphous material.

Abstract: A grey gold alloy which is nickel-free, cobalt-free, iron-free, silver-free, zirconium-free, niobium-free, chromium-free, indium-free, gallium-free and manganese-free and includes, expressed in weight percent, from 75.0 to 76.5% of Au, from 15 to 23% of Pd, from 1 to 7% of Cu, and from 0 to 5% of at least one of the alloying elements Ir, Ru, B and Re, the respective percentages of all the elements of the alloy adding up to 100%.

Abstract: An amorphous alloy corresponding to the formula: CoaNibMoc(C1-xBX)dXe wherein X is one or several elements selected from the group consisting of Cu, Si, Fe, P, Y, Er, Cr, Ga, Ta, Nb, V and W; wherein the indices a to e and x satisfy the following conditions: 55?a?75 at. % 0?b?15 at. % 7?c?17 at. % 15?d?23 at. % 0.1?x?0.9 at. % 0?e?10 at. %, each element selected from the group having a content ?3 at. % and preferably ?2 at. %, the balance being impurities.

Abstract: Nickel-free bulk amorphous alloy, formed, in atomic percent, of: a zirconium and/or hafnium base, forming the balance, with a total zirconium and hafnium value greater than or equal to 52.0, and less than or equal to 62.0; copper: greater than or equal to 16.0, and less than or equal to 28.0; iron: greater than or equal to 0.5, and less than or equal to 10.0; aluminum: greater than or equal to 7.0, and less than or equal to 13.0; at least two additional metals taken from the family including Ti, V, Nb, Y, Cr, Mo, Co, Sn, Zn, P, Pd, Ag, Au, Pt, Ta, Ru, Rh, Ir, Os, and Hf when the base contains none, and Zr when the base contains none, with the cumulative atomic percentage of these additional metals being greater then 6.0 and less than or equal to 10.0.

Abstract: The invention concerns a zirconium and/or hafnium based, beryllium free, solid, amorphous alloy, with the addition of silver and/or gold and/or platinum to increase its critical diameter.

Abstract: The invention concerns a zirconium and/or hafnium based, beryllium free, bulk, amorphous alloy, with the addition of silver and/or gold and/or platinum to increase its critical diameter.

Abstract: A process for adjusting a device including a first piece and at least one second piece, wherein the at least one second piece is fixed to the first piece by a joint made from a first material arranged between the first and second piece. The first material is an at least partially amorphous metal alloy. The process further includes: heating at least the joint to a heating temperature in a range of between a glass transition temperature and a crystallization temperature of the first material; modifying a position of the at least one second piece until a desired determined position is obtained; cooling at least the joint so that it retains its at least partially amorphous state.

Abstract: Nickel-free bulk amorphous alloy, formed, in atomic percent, of: a zirconium and/or hafnium base, forming the balance, with a total zirconium and hafnium value greater than or equal to 52.0, and less than or equal to 62.0; copper: greater than or equal to 16.0, and less than or equal to 28.0; iron: greater than or equal to 0.5, and less than or equal to 10.0; aluminium: greater than or equal to 7.0, and less than or equal to 13.0; at least two additional metals taken from the family including Ti, V, Nb, Y, Cr, Mo, Co, Sn, Zn, P, Pd, Ag, Au, Pt, Ta, Ru, Rh, Ir, Os, and Hf when the base contains none, and Zr when the base contains none, with the cumulative atomic percentage of these additional metals being greater then 6.0 and less than or equal to 10.0.

Abstract: A method of assembling a device including first and second parts, the method including: taking the first and second parts; assembling the first and second parts provided by their arrangement so a gap is present between the first and second parts; taking a metal alloy, chosen for its ability to become at least partially amorphous; shaping the metal alloy to fill the gap between the first and second parts to join them and thereby form the device, the metal alloy having been subject to a treatment allowing the alloy to become at least partially amorphous, at a latest at a time of the shaping. The metal alloy is subject to a temperature increase above the melting temperature thereof causing the alloy to lose any local crystalline structure, the increase followed by cooling to a lower temperature than vitreous transition temperature thereof allowing the material to become at least partially amorphous.

Abstract: A method for manufacturing a composite component of a timepiece or of a jewelry part, the composite component including a porous ceramic part and a metallic material filling the pores of the ceramic part, including providing a porous ceramic preform of the component, providing a metallic material, heating the metallic material to a temperature higher than the melting point of the metallic material, filling the pores of the ceramic preform with the molten metallic material, cooling the metallic material and the ceramic preform to obtain a solidified metallic material in the pores of the ceramic preform, and applying finishing treatments to obtain the composite component, wherein the porous ceramic preform consists essentially of a material selected from the group consisting of Si3N4, SiO2 and mixtures thereof, and the metallic material is gold, platinum, palladium metals or alloys of these metals.

Abstract: The invention relates to a method for mounting at least one decorative element (3) on a support (2) comprising the steps of: a. taking a support (2) provided with at least one cavity (4); b. taking at least one decorative element (3); c. filling said cavity with a composite filler material comprising at least one metal powder and at least one organic binder and having, at the moment of filling, a viscosity comprised between 1,000 mPa·s and 1,000,000 mPa·s; d. heating the composite filler material to a higher temperature than its melting point to make it liquid; e. allowing the filler material to cool to form a substrate (6); f. making at least one housing (8) in said substrate (6); g. mounting said decorative element (3) in said housing (8).

Abstract: A grey gold alloy which is nickel-free, cobalt-free, iron-free, silver-free, copper-free, zirconium-free, niobium-free, chromium-free and manganese-free, including, expressed in weight percent, from 75.0 to 76.5% of Au, from 15 to 23% of Pd, from 0.5 to 5% of Rh, from 0 to 7% of Pt, and from 0 to 5% of at least one of the alloying elements Ir, Ru, Ti, In, Ga, B and Re, the respective percentages of all the alloying elements adding up to 100%.

Abstract: The method makes it possible to produce a decorated element for a timepiece or piece of jewellery. This decorated element may be, for example, a watch dial. The method includes the steps of taking a base substrate, and micromachining on said base substrate a mould or decorative partitions in a programmed pattern, and filling the mould or the decorative partitions with at least one filler material to obtain the decorated element. The filler material may be an epoxy resin and the mould or the partitions are obtained by melting and solidifying a solder paste or powder.

Abstract: A palladium-based alloy including, expressed in weight, between 50 and 55% of palladium, between 45% and 50% of rhodium; a quantity x of silver where 0%?x?5%, and a quantity R of a balance including at least one element selected from among iridium, ruthenium, platinum, titanium, zirconium and rhenium and combinations thereof, where 0%?R?5%. The invention also relates to a A timepiece or piece of jewellery including at least one component made of such an alloy.

Abstract: A method of producing a first part having at least one surface, formed of a first material. The first part includes at least one coating on the at least one surface. The production method includes: a) taking a second part including a cavity forming the negative of the first part; b) depositing the coating, including at least a first layer, onto the second part; c) taking a first metallic material, chosen for its ability to become at least partially amorphous; d) shaping the first material in the cavity of the second part so as to secure the coating to the at least one surface of the first part, the first material having been subject to a treatment allowing it to become at least partially amorphous, at the latest at the time of the shaping operation; e) separating the first part from the second part so as to obtain the first part coated with the coating.

Abstract: The invention concerns a zirconium and/or hafnium based, beryllium free, solid, amorphous alloy, with the addition of silver and/or gold and/or platinum to increase its critical diameter.

Abstract: A decorative piece including a support made of a material having no plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged, the at least one housing configured so that at least one aesthetic element can be housed therein.

Abstract: A decorative piece includes a support made of a material having no usable plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged. The housing is arranged so that at least one aesthetic element is housable therein. The substrate further includes a gripper elastically deforming to retain the aesthetic element in the housing. The gripper further includes at least one setting element. A method for setting an aesthetic element on a support includes taking a support provided with at least one hollow, taking at least one aesthetic element, filling the hollow with a first material, making a setting hole and a gripper in the first material, and setting the aesthetic element by placing it in the hole and by deforming the gripper so as to retain the aesthetic element.