EP3120954B1 - Verkleidungsmethode eines bauteils - Google Patents

Verkleidungsmethode eines bauteils Download PDF

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Publication number
EP3120954B1
EP3120954B1 EP15178288.5A EP15178288A EP3120954B1 EP 3120954 B1 EP3120954 B1 EP 3120954B1 EP 15178288 A EP15178288 A EP 15178288A EP 3120954 B1 EP3120954 B1 EP 3120954B1
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EP
European Patent Office
Prior art keywords
preform
expansion
foam
manufacture
amorphous metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15178288.5A
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English (en)
French (fr)
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EP3120954A1 (de
Inventor
Alban Dubach
Yves Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP15178288.5A priority Critical patent/EP3120954B1/de
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to CH01083/15A priority patent/CH711381B1/fr
Priority to US15/741,310 priority patent/US11167349B2/en
Priority to PCT/EP2016/067292 priority patent/WO2017016951A1/fr
Priority to CN201680043305.8A priority patent/CN107921538B/zh
Priority to JP2018502408A priority patent/JP6523551B2/ja
Publication of EP3120954A1 publication Critical patent/EP3120954A1/de
Priority to HK18111786.5A priority patent/HK1252478A1/zh
Application granted granted Critical
Publication of EP3120954B1 publication Critical patent/EP3120954B1/de
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
    • B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/11—Making amorphous alloys
    • 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
    • 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
    • G04B37/225—Non-metallic cases
    • G04B37/226—Non-metallic cases coated with a metallic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/005—Casting metal foams

Definitions

  • the present invention relates to a device comprising a first part made of a first material and at least one second part made of a second material, the second part being is made of a foam and assembled to the first part.
  • the technical field of the invention is the field of fine mechanics.
  • the known methods generally consist in depositing a layer of the desired material by electrodeposition.
  • this electrodeposition has the disadvantage of only allowing the deposition of thin coatings, which results in low impact resistance.
  • shocks applied to said part then lead to marking of the coating, reducing the aesthetic appearance of the part and degrading the performance of the coating.
  • Another solution consists in using a metal sheet and fixing this metal sheet on the part to be coated acting as a support. Fixing is done by gluing or welding or brazing or force-fitting.
  • a drawback to this method is that it is not suitable for materials which are brittle of the silicon type.
  • the object of the invention is to overcome the drawbacks of the prior art by proposing to provide a process for coating a part in a simple and safe manner without limitation as to the nature of the parts fixed together.
  • the invention relates to a manufacturing method according to claim 1.
  • the present invention relates to a method of manufacturing a composite part comprising a first part and at least one second part.
  • the device 10 comprises a first part 11 and a second part 12.
  • the first part 11 is made of a first material while the second part 12 is made of a second material.
  • the first part or the second part is produced in the form of an at least partially amorphous metallic foam comprising at least one metallic element such as an at least partially amorphous metallic alloy.
  • This metallic element can be a classic metallic element such as iron, nickel, zirconium, or precious such as gold, platinum, palladium, rhenium, ruthenium, rhodium, silver, iridium or osmium. It will be understood by at least partially amorphous material that the material is able to solidify at least partially in the amorphous phase, that is to say that it is subjected to a temperature rise above its melting point allowing it to locally lose any crystalline structure, said rise being followed by cooling to a temperature below its glass transition temperature allowing it to become at least partially amorphous.
  • a first method consists in taking an alloy and heating it until it reaches a liquid state. At this time, gas bubbles are injected into said alloy which is in the liquid state. This injection of gas bubbles occurs before a stage of rapid cooling. This rapid cooling step is carried out to solidify said alloy while trapping the gas bubbles.
  • a second method for making such a foam consists of using an alloy and heating it until it reaches a liquid state. At this time, chemical agents are injected into said alloy which is in the liquid state. These chemical agents are gas-releasing agents so that the latter, under certain conditions, release gases. These chemical agents or precursors can be, for example, titanium or zirconium hydrides. This release of gas occurs before a rapid cooling step. This rapid cooling step is carried out to solidify said alloy while trapping the gas bubbles.
  • a variant of this second method consists in providing a material capable of becoming a foam in order to obtain a material which only becomes an amorphous metallic foam when it is shaped.
  • the chemical agents used are releasing agents which release gases under certain conditions of temperature and pressure.
  • the increase in temperature allows the release of the gas and therefore the transformation of the material into foam.
  • a third method for producing an amorphous metal foam consists of successive deposits of layers of powder, each layer of powder being sintered locally by a laser or electron beam. This local sintering thus makes it possible, at the level of each layer of powder, to create the pores which will make it possible to form the foam.
  • the second part 12 is then a coating or an integral part of the first part 11.
  • the first material can be a conventionally used material such as steel, brass, aluminum or titanium, but it can also be a so-called fragile material.
  • fragment material means a material which has no exploitable plastic domain such as for example quartz, ruby, sapphire, glass, silicon, graphite, carbon or a ceramic such as silicon nitride and silicon carbide or a cermet type composite.
  • the method consists, in a first step, in providing a preform 23 of amorphous metal foam.
  • a second step consists in taking the part to be coated, here the bezel 21, and placing it in a mold 24 which can be dies 24a, 24b having the negative shape of the coated part as visible at picture 2 .
  • This mold can be formed from two dies.
  • the preform 23 is also placed in the mold.
  • the mold will have the shape of the cog or bezel and dimensions equal to the dimensions of the cog to which are added the 0.1 millimeter of the layer. There is therefore a space 25 to be filled.
  • a heating step is carried out.
  • This heating step consists in heating the assembly to a temperature between the glass transition temperature Tg and the crystallization temperature Tx of the preform.
  • Tg glass transition temperature
  • Tx crystallization temperature
  • the amorphous metals have a viscosity which decreases sharply, the decrease in viscosity being dependent on the temperature: the higher the temperature, the more the viscosity decreases. This viscosity allows the amorphous metal, when subjected to stress, to fit into every corner of a mold.
  • the pressure in the negative is lower than the pressure of the gas inside the preform otherwise there can be no expansion.
  • the enclosure in which the mold is located is placed under vacuum or at a pressure sufficiently lower than the pressure of the gas.
  • these two dies can be fixed together via fixing means such as screws or simply by exerting a force on them. pressure.
  • a cooling step is performed. This cooling step is done to freeze the amorphous metal foam preform and form the intermediate piece. The device is then separated from the dies to obtain the device of the figure 1 .
  • a part is bi-material
  • the final part is composed of a first part 11 in any material and a second part 12 in amorphous metal foam.
  • the method consists, in a first step, in providing an amorphous metal foam preform.
  • it may be a bi-material bezel consisting of a base 31 acting as a first part 11 on a second part 12 made of a second material. This second part 12 then forms an outer shell 32 of the bezel as seen on the figure 5 .
  • the final part 10 may be an axle 41 whose studs 42 are made of a second material as seen in figure 6 .
  • a second step consists in obtaining the first part 11 of the bi-material part and placing it in a mold having the shape and dimensions of the final part.
  • the preform is also placed in the mould.
  • the preform has a shape similar to that of the second part.
  • a heating step is carried out.
  • This heating step consists of heating the assembly to a temperature between the glass transition temperature Tg and the crystallization temperature Tx of the preform.
  • Tg glass transition temperature
  • Tx crystallization temperature
  • the amorphous metals have a viscosity which decreases sharply, the decrease in viscosity being dependent on the temperature: the higher the temperature, the more the viscosity decreases.
  • This viscosity allows the amorphous metal to fit into every corner of a mould. This rise in temperature also makes it possible to heat the gas bubbles present in the foam preform.
  • a heated gas expands so that it will occupy a larger volume. Since the amorphous metal of the foam is in a so-called viscous state, this expansion of the gas causes the foam preform to expand, this preform begins to swell. Consequently, the volume taken up by the preform increases. This increase in the volume of the preform associated with the shaping characteristics of amorphous metals leads to the filling of the mold, ie the filling of the space dedicated to the second part of the final part.
  • a cooling step is performed. This cooling step is done to freeze the amorphous metal foam preform and form the intermediate piece.
  • the first part 11 of the final part is provided with a cavity 13.
  • This cavity 13 is used to improve the connection between the first part 31 and the second part 32 in cases where the second part 32 is a coating or is used to form a bi-material part.
  • the production of a cavity 13 allows, during manufacture, the amorphous metal foam to extend therein to reinforce the connection between the first part and the second part.
  • This cavity can be fitted with or be replaced, depending on the case, by structuring 14 which increases the roughness and therefore grips it as visible on the figure 8 .
  • the cavity is arranged to have a shape such that its surface is not constant. This means that the cavity does not present a constant profile as a function of depth. Ideally, it will be expected that the profile of the cavity widens according to the depth so as to create a natural restraint.
  • the method consists in obtaining the preform which is not in the form of a foam and placing it in the mold. The whole is then heated to a temperature allowing the precursor chemical agents to release gas, this temperature also allowing the gases to expand and cause the material to expand.
  • control of the expansion of the amorphous metal foam preform can be done in several ways.
  • a first solution consists in modifying the density of the gas bubbles during the manufacture of the foam.
  • One method of making amorphous metal foam is to inject gas bubbles into the molten metal and cool it to trap those bubbles. The injection of gas bubbles can be controlled so that they are distributed more or less homogeneously and more or less densely. It will then be understood that the greater the density of the gas bubbles, the greater the volume of gas enclosed in the foam. However, the greater the volume of gas enclosed, the greater the expansion will be due to the expansion of the gas during the heating step.
  • a second solution consists in controlling the expansion of the amorphous metal foam by modifying the temperature of the heating step. Indeed, when a gas is subjected to heating, the momentum of the particles that compose it increases. At constant volume, this results in an increase in pressure, because the number of collisions between particles per unit area increases. If the pressure should remain constant, then the volume of the gas should increase, according to the ideal gas law. Consequently, by increasing or decreasing the heating temperature during the heating step, the volume of the gas enclosed in the amorphous metal foam is varied and its expansion is therefore modified.
  • the control of the expansion of the amorphous metal foam is done by controlling the atmosphere in the heating enclosure of the second embodiment or in the cavity of the mold in the first embodiment.
  • This solution assumes that expansion is possible from the moment the pressure of the gas enclosed in the amorphous metallic foam is greater than that of the atmosphere outside the foam.
  • the ideal is for the outside atmosphere to be close to a vacuum so as to favor the expansion of the foam as much as possible. Therefore, by adjusting the external pressure, the amplitude of the expansion of said foam is adjusted knowing that the greater the pressure of the external atmosphere, the less the expansion will be.
  • the cavities can be replaced or supplemented with protuberances 15 as visible at figure 9 .
  • These protuberances are the negatives of the cavities and have the same function.
  • the amorphous metal foam is shaped so as to be able to envelop this or these protrusions and improve the connection between the first part and the second part.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Micromachines (AREA)

Claims (10)

  1. Verfahren zum Herstellen eines Werkstücks (10), das sich aus einem ersten Teil (11), das aus einem ersten Material gebildet ist, und aus einem zweiten Teil (12), das aus einem zweiten Material gebildet ist, zusammensetzt, wobei das Verfahren außerdem die folgenden Schritte umfasst:
    - Bereitstellen eines aus dem zweiten Material gebildeten Vorformlings, wobei das zweite Material ein metallisches Material ist, das zumindest teilweise amorph ist und unter Temperatur- und Druckbedingungen sein Volumen vergrößern kann;
    - Bereitstellen des ersten Teils und einer Form, die zwei einen Hohlraum bildende Matrizen umfasst, und Anordnen des ersten Teils und des Vorformlings zwischen den beiden Matrizen, die eine negative Form des herzustellenden Werkstücks haben;
    - Erhitzen des Ganzen auf eine Temperatur zwischen der Glasübergangstemperatur Tg und der Kristallisationstemperatur Tx des Vorformlings, um spätestens in diesem Schritt dem Vorformling zu ermöglichen, einen Schaum zu bilden und eine Expansion des Vorformlings zu ermöglichen, um die negative Form des Werkstücks auszufüllen und das Werkstück zu bilden;
    - Abkühlen des Ganzen, um den Vorformling zu verfestigen und um das Werkstück von den Matrizen zu trennen,
    wobei die Expansion des Vorformlings aus amorphen Metallschaum durchgeführt wird, wenn der Druck zwischen den beiden Matrizen geringer ist als der Gasdruck im Inneren des Vorformlings, und:
    - im Falle einer druckdichten Form evakuieren des Hohlraums, um die Expansion des Vorformlings aus amorphem Metallschaum zu ermöglichen, oder
    - im Falle einer nicht druckdichten Form Anordnen der Form in einem abgeschlossenen Raum und setzen des Raums unter Vakuum oder unter einen Druck, der ausreichend niedriger als der Gasdruck ist, um die Expansion des Vorformlings aus amorphem Metallschaum zu ermöglichen.
  2. Herstellungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Expansion des Vorformlings genutzt wird, um ein verkleidetes Werkstück zu bilden.
  3. Herstellungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Expansion des Vorformlings genutzt wird, um ein Werkstück aus zwei Materialien zu bilden.
  4. Herstellungsverfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der erste Teil mit mindestens einem Hohlraum (13) versehen ist, in dem sich der amorphe Metallschaum, der den zweiten Teil bildet, ausdehnt.
  5. Herstellungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der erste Teil mit mindestens einem Vorsprung (15) versehen ist, von dem aus sich der amorphe Metallschaum, der den zweiten Teil bildet, ausdehnt.
  6. Herstellungsverfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der erste Teil mit Strukturierungen (14) versehen ist, die eine besseres Anhaften des zweiten Teils ermöglichen.
  7. Herstellungsverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen einleitenden Schritt zum Herstellen eines Vorformlings aus einem Schaum aus einer Metalllegierung, die mindestens teilweise amorph ist, umfasst.
  8. Herstellungsverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Expansion des Schaums durch die Temperatur gesteuert wird, wobei die Expansion umso größer ist, je höher die Temperatur ist.
  9. Herstellungsverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Expansion des Schaums von der Gasdichte im Schaum abhängig ist, wobei die Expansion umso größer ist, je größer das Volumen des eingeschlossenen Gases ist.
  10. Herstellungsverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Expansion dadurch erhalten wird, dass der Druck im Schaum größer ist als der Umgebungsdruck.
EP15178288.5A 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils Active EP3120954B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH01083/15A CH711381B1 (fr) 2015-07-24 2015-07-24 Dispositif comportant une partie en mousse d'alliage métallique amorphe et procédé de fabrication.
EP15178288.5A EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils
PCT/EP2016/067292 WO2017016951A1 (fr) 2015-07-24 2016-07-20 Methode de revetement de piece
CN201680043305.8A CN107921538B (zh) 2015-07-24 2016-07-20 部件涂覆方法
US15/741,310 US11167349B2 (en) 2015-07-24 2016-07-20 Part coating method
JP2018502408A JP6523551B2 (ja) 2015-07-24 2016-07-20 部品を被覆する方法
HK18111786.5A HK1252478A1 (zh) 2015-07-24 2018-09-13 部件塗覆方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15178288.5A EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils

Publications (2)

Publication Number Publication Date
EP3120954A1 EP3120954A1 (de) 2017-01-25
EP3120954B1 true EP3120954B1 (de) 2022-04-06

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EP15178288.5A Active EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils

Country Status (7)

Country Link
US (1) US11167349B2 (de)
EP (1) EP3120954B1 (de)
JP (1) JP6523551B2 (de)
CN (1) CN107921538B (de)
CH (1) CH711381B1 (de)
HK (1) HK1252478A1 (de)
WO (1) WO2017016951A1 (de)

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20040035502A1 (en) * 2002-05-20 2004-02-26 James Kang Foamed structures of bulk-solidifying amorphous alloys

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DE19908867A1 (de) * 1999-03-01 2000-09-07 Arved Huebler Verbundkörper sowie Verfahren zum Herstellen eines Verbundkörpers
DE19912618C2 (de) * 1999-03-22 2002-06-27 Meleghy Hydroforming Gmbh & Co Bauteil mit partieller Verstärkung und Verfahren zu dessen Herstellung
DE19928997C2 (de) * 1999-06-24 2001-05-17 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Schäumen von Metallen
DE10205070A1 (de) * 2002-02-07 2003-08-21 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Herstellung von Metallschaum-Verbundkörpern, Metallschaum-Verbundkörper und Metallschaumlaminat
US7621314B2 (en) * 2003-01-17 2009-11-24 California Institute Of Technology Method of manufacturing amorphous metallic foam
JP2006002195A (ja) * 2004-06-16 2006-01-05 Tohoku Univ ポーラス金属ガラスの製造方法とポーラス金属ガラス
DE102005001949B4 (de) 2004-12-29 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zur Herstellung einer Strahlungsquelle und Strahlungsquelle
US7597840B2 (en) * 2005-01-21 2009-10-06 California Institute Of Technology Production of amorphous metallic foam by powder consolidation
US7705458B2 (en) * 2006-06-20 2010-04-27 Intel Corporation Bulk metallic glass solders, foamed bulk metallic glass solders, foamed-solder bond pads in chip packages, methods of assembling same, and systems containing same
EP2225059A1 (de) * 2007-11-26 2010-09-08 Yale University Verfahren zum blasformen von massivem metallischem glas
JP4450080B2 (ja) * 2008-02-01 2010-04-14 セイコーエプソン株式会社 腕時計用歯車及び腕時計用歯車の製造方法
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JP5556257B2 (ja) * 2010-03-11 2014-07-23 富士通株式会社 無線通信装置
EP2725000B1 (de) 2012-10-24 2019-08-28 The Swatch Group Research and Development Ltd. Selektiv leitende und mit Metallmaterial beschichtete Keramik
EP2835698A1 (de) * 2013-08-07 2015-02-11 The Swatch Group Research and Development Ltd. Verkleidungselement mit Schutzhaube aus metallischem Glas

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Publication number Priority date Publication date Assignee Title
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Non-Patent Citations (1)

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SCHROERS JAN ET AL: "Amorphous metallic foam", APPLIED PHYSICS LETTERS, A I P PUBLISHING LLC, US, vol. 82, no. 3, 20 January 2003 (2003-01-20), pages 370 - 372, XP012034574, ISSN: 0003-6951, DOI: 10.1063/1.1537514 *

Also Published As

Publication number Publication date
EP3120954A1 (de) 2017-01-25
CN107921538B (zh) 2020-06-23
WO2017016951A1 (fr) 2017-02-02
HK1252478A1 (zh) 2019-05-24
US11167349B2 (en) 2021-11-09
CH711381B1 (fr) 2023-02-15
US20180193919A1 (en) 2018-07-12
CN107921538A (zh) 2018-04-17
JP6523551B2 (ja) 2019-06-05
CH711381A2 (fr) 2017-01-31
JP2018522738A (ja) 2018-08-16

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