EP3177747B1 - Alliage de métaux précieux à solidification amorphe, à base de métaux précieux - Google Patents

Alliage de métaux précieux à solidification amorphe, à base de métaux précieux Download PDF

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Publication number
EP3177747B1
EP3177747B1 EP15808100.0A EP15808100A EP3177747B1 EP 3177747 B1 EP3177747 B1 EP 3177747B1 EP 15808100 A EP15808100 A EP 15808100A EP 3177747 B1 EP3177747 B1 EP 3177747B1
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Prior art keywords
mass
precious metal
metal alloy
range
mass percent
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German (de)
English (en)
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EP3177747A1 (fr
Inventor
Jochen Heinrich
Heinz-Günter Schenzel
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C Hafner GmbH and Co KG
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C Hafner GmbH and Co KG
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Priority claimed from DE202014008963.9U external-priority patent/DE202014008963U1/de
Priority claimed from DE102014016723.2A external-priority patent/DE102014016723A1/de
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Publication of EP3177747A1 publication Critical patent/EP3177747A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • A44C27/003—Metallic alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/003—Amorphous alloys with one or more of the noble metals as major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2200/00—Crystalline structure
    • C22C2200/02—Amorphous

Definitions

  • the invention relates to an amorphous precious metal alloy containing platinum and / or palladium, a process for their preparation and an article produced on the basis of this noble metal alloy, in particular jewelry such as a piece of jewelry, a clock, a watch case, or a writing instrument.
  • amorphous precious metal alloys are increasingly being used, especially in the jewelery or watch industry, as they provide an exceptional combination of mechanical properties, particularly in terms of their strength and elasticity, which is not achieved by any other currently known material so.
  • amorphous metallic precious metal alloys are also characterized by a significantly higher hardness compared to conventional crystalline noble metal alloys of comparable composition.
  • amorphous metals Another advantage of amorphous metals is the combination of mechanical properties with the possibility of near-net-shape processing by casting or thermoplastic molding:
  • the processing of such amorphous metals goes hand in hand with no solidification shrinkage and leads to workpieces with high mechanical loads.
  • the maximum achievable thickness of fully amorphous solidified workpieces is limited by the critical cooling rate of the respective noble metal alloy.
  • thermoplastic molding amorphous workpieces may be deformed or bonded at temperatures above the glass transition temperature T g , thereby producing thin-walled, hollow, large area and / or surface structured workpieces having dimensions beyond the critical thickness.
  • the first amorphous noble metal alloy based on precious metals was a binary precious metal alloy in the Au-Si system. Starting from this system, the hitherto most known amorphous noble metal alloy having the composition Au 49 Ag 5.5 Pd 2.3 Cu 26.9 Si 16.3 from Liquidmetal Technologies Inc. was developed, the abovementioned proportions being expressed in atomic percentages , In mass percent this corresponds to Au 76.3 Ag 4.7 Pd 1.9 Cu 13.5 Si 3.6 .
  • This precious metal alloy with an 18-karat gold content has a hardness of 360 HV and thus exceeds the hardness value of a color-comparable crystalline precious metal alloy by more than 50%.
  • a disadvantage of this noble metal alloy was a lack of corrosion behavior, which is why this precious metal alloy was not widely used.
  • platinum-based noble metal alloys are known, for example Pt 42.5 Cu 27 Ni 9.5 P 21 and Pt 80 Cu 16 Co 2 P 22 , the abovementioned proportions being again expressed in atomic percent. In terms of mass percentage this corresponds to Pt 73.9 Cu 15.3 Nis P 5.8 or Pt 88.8 Cu 4.5 Co 0.9 P 5 .
  • These exclusively high grade precious metal alloys also have unusually high hardnesses above 400 HV and are more corrosion resistant than the aforementioned amorphous gold alloys because of generally slower kinetics.
  • the main drawback of these known platinum-based amorphous noble metal alloys is their large admixtures of nickel-phosphorus and phosphorus, which make processing and recycling more difficult. In the aforementioned platinum alloys z. As nickel-phosphorus content or phosphorus content of 21 or 22 atomic percent required to achieve a sufficient glass forming ability or lowest liquidus temperatures in the system Pt-P.
  • palladium-based amorphous precious metal alloys are known, e.g. B. Pd 40 Co 30 Ni 10 P 20 , wherein the proportions of the aforementioned alloy components are again indicated in atomic percent.
  • the abovementioned noble metal alloy has the following composition: Pd 58 Co 26 Ni 8 P 8 . Again, the large proportion of nickel-phosphorus of about 16 percent by mass is disadvantageous again.
  • the US 4,746,584 A1 describes metal electrodes formed from an amorphous metal according to the formula Pt p A a D d , where A is iridium, palladium, rhodium, ruthenium or a mixture thereof and D is boron, aluminum, arsenic, phosphorus, antimony, germanium, silicon or Sicillium or a mixture thereof.
  • the mass fraction p is in the range of 40-82%, that of a in the range of 1-40% and that of d in the range between 8-40%, wherein the mass fractions p, a and d to 100 wt .-% complementary ,
  • This amorphous precious metal alloy is characterized by being always contains two elements from the platinum group, namely always platinum and another element of the platinum group.
  • a jewelery crystalline precious metal alloy which consists of 75% to 99.5% by weight of palladium as the base metal with additions of metals of the 3rd to 6th periods of the Periodic Table of the Elements.
  • the DE 20 2009 013 202 U1 describes a crystalline platinum-jewelery alloy comprising 50% to 70% by weight of platinum, 2% to 15% by weight of at least one element selected from indium, gallium, germanium, tin and zinc and 0.5% to 40% by weight of silver or copper.
  • the DE 10 2007 006 623 A1 describes a crystalline platinum alloy for the manufacture of jewelery having the following composition, the percentages being given by weight: 39-66% platinum, 5-30% palladium and 10-32% copper. Preferred embodiments of the alloys provide a composition of 44-46% platinum, 9-30% palladium and 24-27% copper and 39-41% platinum, 9-30% palladium and 29-52 copper, respectively.
  • a method for producing a semifinished product of the noble metal alloy according to the invention is to be created. Further objects of the invention are the provision of a semifinished product, in particular for the production of jewelry, as well as in the use of the precious metal alloy according to the invention for the production of a jewelry article as well as in the creation of a jewelry article.
  • the noble metal alloy according to the invention has a composition according to A a B b C c , wherein A is at least one element selected from the group consisting of Pt and Pd, B is at least one element selected from the group consisting of Al, Au, Ag, Cu and C represents at least one element selected from the group consisting of Ga and Ge, the mass fraction a being in the range of 45-60% by mass, preferably in the range of 45-59% by mass, more preferably in the range of 48-54% by mass, the mass fraction b in the range of 39-55 % By mass preferably in the range of 39-49 mass%, more preferably in the range of 40-47 mass%, and the mass fraction c in the range of 0-13 mass%, preferably in the range of 1-13% by mass, more preferably in the range of 2 to 10% by mass and more preferably in the range of 2 to 5 mass%, preferably wherein, in the coexistence of platinum and palladium, the noble metal alloy does not have aluminum as the sole alloying component of group B,
  • the inventive measures a platinum alloy is created, which is nickel and / or phosphorus-free, and yet has a good glass forming ability.
  • the precious metal alloy according to the invention is characterized by a high resistance to corrosion and tarnishing and is therefore particularly suitable for the production of high-quality workpieces such. B. pieces of jewelry suitable.
  • the noble metal alloys according to the invention have the advantage that they contain no nickel and / or phosphorus. This significantly simplifies their production and material recycling.
  • the precious metal alloys are also harmless in terms of any allergies, which is particularly advantageous for use in the jewelry and watch industry, where the corresponding piece of jewelry often directly and for a long time in direct contact with the skin, is beneficial.
  • the inventive method for producing a semifinished product of an amorphous solidifying noble metal alloy suggests that a masses of at least one element of the aforementioned group A, b mass fractions of at least one element of the aforementioned group B and c mass fractions of at least one element of the aforementioned group C alloyed and to the Semi-finished products are poured.
  • the semifinished product according to the invention provides that it is produced from the above-described noble metal alloy according to the invention.
  • an amorphous solidifying noble metal alloy is used for producing a jewelry article, in particular a piece of jewelry, a clock of a watch case, a watch band, a writing instrument or a part of such an article, which is characterized by the composition A a B b C c A at least one noble metal from a group consisting of platinum and palladium, B at least one element from a group consisting of Al, Au, Ag and Cu, C at least one element from a group consisting of Ga and Ge, wherein the mass fraction a is in the range of 45-60% by mass, preferably in the range of 45-59% by mass, more preferably in the range of 48-54% by mass, the mass fraction b in the range of 39-49 55% by mass, preferably in the range of 39 -55% by mass, more preferably in the range of 39 to 49% by mass, more preferably in the range of 40 to 47% by mass, and the mass c is in the range of 0-13% by mass, preferably in the range of 1
  • An article of jewelery according to the invention in particular jewelery such as a piece of jewelery, a watch, a watch case, a watch strap, a writing instrument or a part of the aforementioned article provides that this article is wholly or partly made of the amorphous precious metal alloy according to the invention.
  • the first three embodiments of a platinum-based noble metal alloy belong to the Pt-Ag-Cu system.
  • a first embodiment of a platinum-based noble metal alloy is given by Pt 53.2 Ag 31.4 Cu 12.2 Ga 3.2 .
  • This precious metal alloy is characterized by a favorable glass forming ability.
  • a second embodiment provides that the noble metal alloy Pt 50 AG is 33.8 Cu 13.2 Ga 3 .
  • a third embodiment of a noble metal alloy is given by Pt 50 Ag 30.6 Cu 11.9 Ge 7.5 .
  • the next three embodiments relate to an amorphous solidified noble metal alloy whose main components are Pt-Al-Cu.
  • the fourth embodiment consists of the noble metal alloy Pt 53.1 Al 35.8 Cu 7.9 Ga 3.2 .
  • the fifth embodiment consists of the noble metal alloy Pt 50 Al 38.5 Cu 8.5 Ga 3 .
  • the sixth embodiment provides a noble metal alloy Pt 50 Al 34.9 Cu 7.7 Ge 7.4 .
  • the seventh and eighth embodiments each describe a noble metal alloy of Pt-Au-Ag-Cu system.
  • the corresponding precious metal alloys are exemplified by Pt 50 Au 23.5 Ag 17 Cu 6.5 Ga 3 and Pt 50 Au 21.2 Ag 15.3 Cu 6 Ge 7.5 .
  • the abovementioned eight embodiments thus describe amorphously solidifying platinum-based noble metal alloys which are characterized by the following composition: Pt a B b C c , where Pt is platinum, B is at least one element from a group consisting of Al, Au, Ag and Cu is defined, and C is at least one element of the group consisting of Ga and Ge defined.
  • the parameter a stands for the platinum content of the described noble metal alloys with 45-60 mass percent, the parameter b for 39 to 55 mass percent, preferably 39-49 mass percent and the parameter c for 0-13 mass percent.
  • platinum is present in an amount of 45-60 mass%, more preferably 45-59 mass%, more preferably 48-54 mass%, especially in a proportion of 49-51 mass% or 50-54 mass% and for the latter range further especially a proportion of 50-52 mass percent is present in the described precious metal alloys.
  • the latter areas are characterized by a particularly favorable glass-forming ability.
  • the proportion b of one or more metals from group B is 39 to 55 mass%, preferably 39-49 mass%, preferably 40-47 mass% and especially 42-47 mass%.
  • the ninth embodiment is a noble metal alloy associated with the Pd-Ag-Cu system and consists of Pd 50 Ag 34 Cu 13 Ga 3 . Again, a favorable glass forming ability is given.
  • An exemplary embodiment of such a noble metal alloy pertaining to this system is Pd 50 Au 20.2 Ag 14.6 Cu 5.7 Ge 9.5 .
  • the noble metal alloys described above can thus be characterized by Pd a B b C c , where Pd for palladium and B and C in turn for at least one element from the above-described groups Al, Au, Ag, Cu or Ga, Ge.
  • the proportion a of palladium in this case is again 45-60% by mass, preferably 45-59% by mass, more preferably 48-54% by mass, more preferably 49-51% by mass or 50-54 and in this case preferably 50-52% by mass, in particular in the latter Concentration areas a particularly favorable glass forming ability is given.
  • the proportion b of the group B element (s) is 39 to 55% by mass, preferably 39-49% by mass, more preferably 40-47% by mass, and still more preferably 42-47% by mass.
  • the proportion of gallium and / or germanium is 0-13 mass%, with the preferred ranges given for the platinum-based amorphous precious metal alloys described in paragraph 1 above correspondingly for palladium.
  • the ratio of the atomic proportions of palladium and aluminum is greater than or equal to 4.
  • This atomic ratio of palladium to aluminum corresponds to a mass ratio of palladium to aluminum of greater than or equal to 94/6; It is thus preferred that the ratio of the proportions of palladium and aluminum - expressed in mass ratios - is greater than or equal to 15.67.
  • an example of such an alloy is an alloy containing 45 to 60 mass percent palladium, 39 to 55 mass percent of at least two group B and gallium and / or germanium elements of 0 to 13 mass percent, but with the proviso that: the first of at least two metals from group B are aluminum, with aluminum being equivalent the proportion of palladium in the range of 45 to 60% by mass and the aforementioned ratio between palladium and aluminum - in a proportion of at most 45 / 15.67 to 60 / 15.67, that is in a proportion from 2.87 to 3.83 mass percent is; the remainder of the fraction b of the at least two elements from the group B is provided by at least one further element from the aforementioned group B.
  • the abovementioned preferred ranges apply to the parts a. b and c again accordingly.
  • the platinum-palladium alloys are thus characterized by (Pt a1 Pd a2 ) a B b C c , wherein for the mass fractions a, b and c again preferably the values given in Sections 1.3 and 2.3 apply correspondingly.
  • the ratio of the atomic proportions of palladium and aluminum is greater than or equal to 4.
  • the explanations given at the end of section 2.3 also apply to a combination of platinum and palladium.
  • the following alloy is to be given: This alloy has platinum and palladium in a total proportion of 55 percent by mass, assuming 50 percent by weight of platinum and 5 percent by weight of palladium.
  • the proportion of elements from group B here exemplarily aluminum and copper, is between 40 and 45 mass percent, optionally containing a corresponding proportion c of elements of group C.
  • the proportion of aluminum is then less than 0.32 mass percent and the proportion of copper is in the range of 39.7 to 24.7 mass percent.
  • platinum or palladium in the simultaneous presence of platinum and palladium, one of the two elements, so either platinum or palladium, each in a proportion of more than 50 mass percent is present to the Punzierall such a noble metal alloy with at least 50 mass percent of Platinum or palladium, or in a proportion of only slightly less than 50 mass percent is present.
  • the proportion of platinum may be 50-59 mass%, i. h., That palladium is then present only in a proportion of 1 percent by mass.
  • the proportion of platinum may be 50-59 mass%, i. h.
  • the preparation of the abovementioned noble metal alloys is described by way of example with reference to the first embodiment.
  • the production of the other noble metal alloys comprising the abovementioned compositions A a B b C c is carried out accordingly: 53.2 parts by mass of platinum, 31.4 parts by mass of silver, 12.2 parts by mass of copper and 3 by 2 mass fractions of gallium alloyed and poured as a solid semi-finished product.
  • the semi-finished product is melted in the next step and processed in a rapid solidification process. Preference is given here an atomization of the melt in an inert gas stream, by means of a device and a method which z.
  • German patent DE 103 40 606 B4 are described.
  • the material solidifies in fractions of a second in the form of amorphous powders, which typically have a mean particle diameter of 25 microns.
  • the amorphous powder has a glass transition temperature T g of about 290 ° C and a crystallization temperature T x of about 450 ° C.
  • thermoplastic molding under pressure TPF process
  • the precious metal alloys described are particularly suitable for the production of jewelry such as jewelry, watches, watch cases, writing instruments and components of the aforementioned goods.

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Claims (14)

  1. Alliage de métaux précieux amorphe, caractérisé par une composition qui suit : AaBbCc, dans lequel
    - A désigne au moins une métal précieux issu d'un groupe qui est constitué de platine et de palladium ;
    - B désigne au moins un élément issu d'un groupe qui est constitué de Al, Au, Ag et Cu ;
    - C désigne au moins un élément issu d'un groupe, qui est constitué de Ga et de Ge, dans lequel la fraction en masse a se situe dans la plage de 45-60 pour cent en masse, de préférence dans la plage de 45-59 pour cent en masse, de manière davantage préférée dans la plage de 48 à 54 pour cent en masse, la fraction en masse b se situe dans la plage de 39-55 pour cent en masse, de préférence dans la plage de 39-49 pour cent en masse, de manière davantage préférée dans la plage de 40 à 47 pour cent en masse, et la fraction en masse c se situe dans la plage de 0-13 pour cent en masse, de préférence dans la plage de 1-13 pour cent en masse et de manière davantage préférée dans la plage de 2 à 10 pour cent de masse et en particulier de manière préférée dans la plage de 2 à 5 pour cent en masse, dans lequel de manière préférée en cas de présence simultanée de platine et de palladium, l'alliage de métaux précieux amorphe ne présente pas l'aluminium en tant que composant d'alliage unique du groupe B, et dans lequel les fractions en masse a, b, et c susmentionnées se complètent pour donner 100 pour cent en masse, abstraction faite de mélanges, d'impuretés et de tolérance d'alliage habituels.
  2. Alliage de métaux précieux selon la revendication 1, caractérisé en ce que l'alliage de métaux précieux est constitué de Pta, Bb et Cc, dans lequel Pt représente le métal précieux de la platine.
  3. Alliages de métaux précieux selon la revendication 1, caractérisés en ce que l'alliage de métaux précieux est constitué de Pda, Bb et Cc, dans lesquels Pd représente le métal précieux du palladium.
  4. Alliage de métaux précieux selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage de métaux précieux est constitué de (Pta1 Pda2)e Bb Cc, dans lequel la somme des fractions en masse a1 de platine et a2 de palladium est égale à la fraction en masse a - abstraction faite de mélanges et impuretés habituels -.
  5. Alliage de métaux précieux amorphe selon l'une quelconque des revendications précédentes, caractérisé en ce que la fraction en masse a se situe dans la plage de 49-51 pour cent en masse ou dans la plage de 50-54 pour cent en masse, de manière préférée dans la plage de 50-52 pour cent en masse, et/ou que la fraction en masse b se situe dans la plage de 42-47 pour cent en masse.
  6. Alliage de métaux précieux selon l'une quelconque des revendications précédentes, caractérisé en ce que la fraction de platine ou la fraction de palladium est égale ou supérieure à 50 pour cent en masse, et/ou en ce qu'en cas de présence simultanée de platine et de palladium, la fraction en masse d'un desdits deux éléments est de préférence supérieure à 50 pour cent en masse.
  7. Alliage de métaux précieux selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage de métaux précieux est Pt53,2Ag31,4Cu12,2Ga3,2 ou Pt50Ag33,8Cu13,2Ga3.
  8. Procédé servant à fabriquer un semi-produit à partir d'un alliage de métaux à solidification amorphe selon l'une quelconque des revendications précédentes, caractérisé en ce que
    - a fractions en masse d'un élément du groupe A,
    - b fractions en masse d'au moins un élément du groupe B ou
    - c fractions en masse d'au moins un élément du groupe C sont alliées et sont coulées en le semi-produit.
  9. Procédé selon la revendication 8, caractérisé en ce que le semi-produit est fondu et est transformé ultérieurement lors d'un procédé de solidification rapide.
  10. Procédé selon la revendication 9, caractérisé en ce qu'une pulvérisation du matériau fondu dans un gaz inerte est effectuée en tant que procédé de solidification rapide, ou qu'une coulée sous pression ou un procédé de revêtement de surface tel qu'une injection thermique ou une injection de gaz à froid est utilisé(e) en tant que procédé de solidification rapide.
  11. Procédé selon la revendication 8, caractérisé en ce que le semi-produit amorphe est transformé ultérieurement au moyen d'une déformation thermoplastique sous pression (procédé TPF).
  12. Semi-produit, en particulier servant à fabriquer des bijoux, caractérisé en ce que le semi-produit est fabriqué à partir d'un alliage de métaux précieux amorphe selon l'une quelconque des revendications 1 à 7.
  13. Utilisation d'un alliage de métaux précieux à solidification amorphe servant à fabriquer un article de joaillerie, en particulier une pièce de bijouterie, une montre, un boîtier de montre, un bracelet de montre, un outil d'écriture ou une partie d'un objet de ce type, caractérisée en ce qu'un alliage de métaux précieux amorphe selon l'une quelconque des revendications 1 à 7 est utilisé.
  14. Article de joaillerie, en particulier bijou tel qu'une pièce de bijouterie, une montre, un boîtier de montre, une bracelet de montre, un outil d'écriture ou une partie des articles susmentionnées, caractérisé en ce que l'article est fabriqué en totalité ou en partie à partir d'un alliage de métaux précieux amorphe selon l'une quelconque des revendications 1 à 7.
EP15808100.0A 2014-11-13 2015-11-13 Alliage de métaux précieux à solidification amorphe, à base de métaux précieux Active EP3177747B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202014008963.9U DE202014008963U1 (de) 2014-11-13 2014-11-13 Amorph erstarrende Legierung auf Edelmetallbasis
DE102014016723.2A DE102014016723A1 (de) 2014-11-13 2014-11-13 Amorph erstarrende Legierung auf Edelmetallbasis
PCT/EP2015/002279 WO2016074796A1 (fr) 2014-11-13 2015-11-13 Alliage de métaux précieux à solidification amorphe, à base de métaux précieux

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EP3177747A1 EP3177747A1 (fr) 2017-06-14
EP3177747B1 true EP3177747B1 (fr) 2018-01-10

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CN107779790B (zh) * 2017-09-25 2019-04-19 北京科技大学 一种含锗无镍无磷大尺寸钯基非晶合金及其制备方法
CH715163A2 (fr) * 2018-07-10 2020-01-15 Blancpain Sa Composant d'horlogerie avec partie arbrée en alliage amagnétique.

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WO2006066215A2 (fr) * 2004-12-17 2006-06-22 Liquidmetal Technologies, Inc. Alliages amorphes a solidification en masse presentant des proprietes mecaniques ameliorees
KR100701027B1 (ko) * 2005-04-19 2007-03-29 연세대학교 산학협력단 연성이 우수한 단일상 비정질 합금
DE102007006623A1 (de) * 2007-02-06 2008-08-07 Burger, Bernhard, Dr. Platinlegierung sowie ein Verfahren zu deren Herstellung und ein aus der Platinlegierung hergestelltes Schmuckstück, insbesondere einen Trauring
US8066827B2 (en) * 2007-07-12 2011-11-29 California Institute Of Technology Ni and Cu free Pd-based metallic glasses
DE202009013202U1 (de) * 2009-04-07 2009-12-24 Heimerle + Meule Gmbh Platin-Schmucklegierung

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EP3177747A1 (fr) 2017-06-14
US20170241004A1 (en) 2017-08-24

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