EP3177747A1 - Amorph erstarrende edelmetall-legierung auf edelmetallbasis - Google Patents
Amorph erstarrende edelmetall-legierung auf edelmetallbasisInfo
- Publication number
- EP3177747A1 EP3177747A1 EP15808100.0A EP15808100A EP3177747A1 EP 3177747 A1 EP3177747 A1 EP 3177747A1 EP 15808100 A EP15808100 A EP 15808100A EP 3177747 A1 EP3177747 A1 EP 3177747A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- noble metal
- metal alloy
- range
- platinum
- 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.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 66
- 239000000956 alloy Substances 0.000 title claims abstract description 66
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 62
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 96
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 46
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 13
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 229910052737 gold Inorganic materials 0.000 claims abstract description 8
- 210000003918 fraction a Anatomy 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 210000000540 fraction c Anatomy 0.000 claims abstract description 3
- 229910000923 precious metal alloy Inorganic materials 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 239000011265 semifinished product Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000010944 silver (metal) Substances 0.000 claims description 7
- 238000007712 rapid solidification Methods 0.000 claims description 5
- 238000005275 alloying Methods 0.000 claims description 4
- 239000010970 precious metal Substances 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000004512 die casting Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000007751 thermal spraying Methods 0.000 claims description 2
- 101001072191 Homo sapiens Protein disulfide-isomerase A2 Proteins 0.000 claims 1
- 102100036351 Protein disulfide-isomerase A2 Human genes 0.000 claims 1
- 239000012768 molten material Substances 0.000 claims 1
- 208000030825 patent ductus arteriosus 2 Diseases 0.000 claims 1
- 239000010949 copper Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910017944 Ag—Cu Inorganic materials 0.000 description 7
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 7
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 7
- 238000007496 glass forming Methods 0.000 description 7
- 239000010931 gold Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910001252 Pd alloy Inorganic materials 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910001260 Pt alloy Inorganic materials 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 235000019589 hardness Nutrition 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000009757 thermoplastic moulding Methods 0.000 description 3
- 229910018182 Al—Cu Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910015365 Au—Si Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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 solidifying noble metal alloy containing platinum and / or palladium, a process for their preparation and an article made 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 solidifying precious metal alloys based on precious metals are increasingly used, especially in the jewelry or watch industry, as they have an extraordinary combination of mechanical properties, especially in terms of their strength and elasticity, which by no other
- amorphous solidifying metallic precious metal alloys are characterized by a significantly higher hardness compared to conventional crystalline noble metal alloys of comparable composition.
- Another advantage of amorphous solidifying 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 solidifying metals goes hand in hand without solidification shrinkage and leads to mechanically high-strength workpieces. When casting such amorphous solidifying metals, the maximum achievable thickness of completely 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 well-known amorphous precious metal alloy having the composition Au 4 9Ag5.5Pd2.3Cu26.9Sii6.3 from Liquidmetal Technologies Inc. was developed, the abovementioned proportions being expressed in atomic percentages. In mass percent this corresponds to Au76.3 Ag 4l 7 Pdi, 9 Cui3.5 Si3.6.
- This precious metal alloy with an 18-karat gold content has a hardness of 360 HV and therefore exceeds the hardness value of a color-comparable crystalline precious metal alloy by more than 50%.
- No. 4,746,584 A1 describes metal electrodes formed from an amorphous metal according to the formula PtpAaDd, 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.
- EP 0 267 318 A2 is a crystalline noble metal alloy for
- Jewelery purposes which consists of 75 wt .-% to 99.5 wt .-% palladium as a base metal with additions of metals of the 3rd to 6th period of the periodic table of the elements.
- a crystalline platinum jewelery alloy which comprises 50% by weight to 70% by weight of platinum, 2% by weight to 15% by weight of at least one element selected from the group Indium, gallium, germanium, tin and zinc and 0.5 wt .-% to 40 wt .-% silver or copper.
- 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 AaBbCc, 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 is at least one Element of a group consisting of Ga and Ge, wherein the mass fraction a in the range of 45-60 mass percent, preferably in the range of 45-59 mass percent, more preferably in the range of 48 to 54 mass percent, the mass fraction b in the range from 39-55 Percent 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 mass%, more preferably in the range of 2 to 10 mass% and in particular preferably in the range from 2 to 5% by mass, the precious metal alloy preferably not having aluminum as the sole alloying component of group B in a simultaneous presence of platinum and palladium, and the abovementi
- 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.
- an amorphous solidifying noble metal alloy characterized by the composition A a Bb C c , is used for producing a jewelery article, in particular a jewel, a watch of a watch case, a watch strap, a writing instrument or a part of such an article 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 denotes 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
- 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 Pt53.2Ag3i, 4Cui2.2Ga3.2. This precious metal alloy is characterized by a favorable glass forming ability.
- a second embodiment provides that the noble metal alloy
- Pt5oAG33,8Cui3,2Ga3 is.
- the next three embodiments relate to an amorphous solidified noble metal alloy whose main components are Pt-Al-Cu.
- the fourth embodiment is the noble metal alloy
- the fifth embodiment consists of the noble metal alloy Pt50Al38,5Cu8,5Ga3.
- the seventh and eighth embodiments each describe a noble metal alloy of Pt-Au-Ag-Cu system.
- the corresponding noble metal alloys are exemplified by Pt5oAu23.5Agi7Cu6.5Ga3 and
- the abovementioned eight embodiments thus describe amorphously solidifying platinum-based noble metal alloys which are characterized by the following composition: Pt a Bb 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 defines at least one member of the group consisting of Ga and Ge.
- 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 in a proportion of 45-60 mass%, in particular from 45 to 59% by mass, more preferably 48-54% by mass, in particular in a proportion of 49 to 51% by mass or 50-54% by mass and for the latter range further especially in a proportion of 50-52 mass% 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 is made of Pd5oAg3 Cui3Ga3. Again, a favorable glass forming ability is given.
- the noble metal alloys described above can thus be characterized by Pd a B ⁇ C c , where Pd for palladium and B and C in turn for at least one element from the above-described groups AI, 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 (Ptai Pda2) a Bt> Cc, whereby 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 Punzierallo 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%, that is, palladium is then present in only 1 mass percent.
- the proportion of platinum may be 50-59 mass%, that is, palladium is then present in only 1 mass percent.
- the proportion of platinum may be 50-59 mass%, that is, palladium is then present in only 1 mass percent.
- the proportion of platinum may be 50-59 mass%, that is, palladium is then present in only 1 mass percent.
- the proportion of platinum may be 50-59 mass%, that is, palladium is then present in only 1 mass percent.
- the proportion of platinum may be 50-59 mass%, that is, palladium is then present in only
- 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 Bb C c is carried out accordingly: 53.2 parts by weight of platinum, 31, 4 parts by weight of silver, 12.2 parts by weight of copper and 3 , 2 mass fractions of gallium alloyed and cast as a massive 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. B. in German Patent DE 103 40 606 B4 are described.
- the material When atomizing the melt at a starting temperature of 1250 ° C. in a stream of nitrogen at an outlet pressure of 10 bar, the material solidifies in fractions of a second in the form of amorphous powders, which typically have an average particle diameter of 25 ⁇ m.
- the amorphous powder has a glass transition temperature T g of about 290 ° C and a crystallization temperature Tx of about 450 ° C.
- thermoplastic molding under pressure TPF process
- injection molding of plasticized amorphous semifinished materials at temperatures above the glass transition temperature is possible.
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014016723.2A DE102014016723A1 (de) | 2014-11-13 | 2014-11-13 | Amorph erstarrende Legierung auf Edelmetallbasis |
DE202014008963.9U DE202014008963U1 (de) | 2014-11-13 | 2014-11-13 | Amorph erstarrende Legierung auf Edelmetallbasis |
PCT/EP2015/002279 WO2016074796A1 (de) | 2014-11-13 | 2015-11-13 | Amorph erstarrende edelmetall-legierung auf edelmetallbasis |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3177747A1 true EP3177747A1 (de) | 2017-06-14 |
EP3177747B1 EP3177747B1 (de) | 2018-01-10 |
Family
ID=54848522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15808100.0A Active EP3177747B1 (de) | 2014-11-13 | 2015-11-13 | Amorph erstarrende edelmetall-legierung auf edelmetallbasis |
Country Status (3)
Country | Link |
---|---|
US (1) | US20170241004A1 (de) |
EP (1) | EP3177747B1 (de) |
WO (1) | WO2016074796A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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. |
WO2024142878A1 (ja) * | 2022-12-28 | 2024-07-04 | 日本発條株式会社 | 合金材料およびコンタクトプローブ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0267318A3 (de) * | 1986-11-13 | 1989-01-11 | C. HAFNER GmbH & Co. | Legierung für Schmuckzwecke |
WO2002012576A1 (fr) * | 2000-08-07 | 2002-02-14 | Tanaka Kikinzoku Kogyo K.K. | Alliages amorphe à base de métal noble |
WO2006066215A2 (en) * | 2004-12-17 | 2006-06-22 | Liquidmetal Technologies, Inc. | Bulk solidifying amorphous alloys with improved mechanical properties |
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 |
-
2015
- 2015-11-13 WO PCT/EP2015/002279 patent/WO2016074796A1/de active Application Filing
- 2015-11-13 EP EP15808100.0A patent/EP3177747B1/de active Active
-
2017
- 2017-05-10 US US15/591,745 patent/US20170241004A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP3177747B1 (de) | 2018-01-10 |
WO2016074796A1 (de) | 2016-05-19 |
US20170241004A1 (en) | 2017-08-24 |
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