DE692208C - Palladium alloy - Google Patents

Palladium alloy

Info

Publication number
DE692208C
DE692208C DE1938B0184136 DEB0184136D DE692208C DE 692208 C DE692208 C DE 692208C DE 1938B0184136 DE1938B0184136 DE 1938B0184136 DE B0184136 D DEB0184136 D DE B0184136D DE 692208 C DE692208 C DE 692208C
Authority
DE
Germany
Prior art keywords
alloy
palladium
copper
ruthenium
palladium alloy
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.)
Expired
Application number
DE1938B0184136
Other languages
German (de)
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.)
Baker and Co Inc
Original Assignee
Baker and Co Inc
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
Application filed by Baker and Co Inc filed Critical Baker and Co Inc
Application granted granted Critical
Publication of DE692208C publication Critical patent/DE692208C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/04Alloys based on a platinum group metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Palladiumlegierung Das gegen chemische Angriffe sehr widerstandsfähige Palladium ist für manche Anwendungen, bei denen es auf große mechanische Widerstandsfähigkeit ankommt, zu weich. Bekanntlich kann man ,es durch Le,giere,n. mit Ruthenium härten, doch erhält man dabei kein genügend gleichmäßiges Gefüge, da die beiden Bestandteile dazu neigen, > getrennt .auszukristallisieren, so daß die härteren Ruth eniumteilchen als Streifen erscheinen, was besonders bei polierten Gegenständen .auffällt. Überdies wird die Legierung bei einem Gehalt von mehr als ioo/o Ruthenium so spröde, daß sie so gut wie unbearb.eitbar ist.Palladium alloy The very resistant to chemical attack Palladium is used for some applications where it has great mechanical resistance arrives too soft. As is well known, one can, by le, greed, n. harden with ruthenium, but one does not get a sufficiently uniform structure because the two components tend to> crystallize out separately, so that the harder ruth enium particles appear as stripes, which is particularly noticeable on polished objects. Besides the alloy becomes so brittle at a content of more than 100% ruthenium that it is practically unworkable.

Diese Mängel werden erfindungsgemäß durch einen Zusatz von Kupfer beseitigt. Dabei erhält, da das Kupfer die gegenseitige Lösung des Palladiums und Ruitheniums fördert, die Legierung ein sehr gleichmäßiges Gefüge. Gleichzeitig ist die Legierung zwar hart, aber auch bei einem Rutheniumgelialt über i o % nicht spröde und somit leicht bearbeitbar. .According to the invention, these deficiencies are alleviated by the addition of copper eliminated. Thereby the copper gets the mutual solution of the palladium and Ruitheniums promote the alloy a very even structure. At the same time is the alloy is hard, but not brittle even with a ruthenium gel of over 10% and therefore easy to edit. .

Die neue Legierung ist von entsprechender weißer Farbe, läßt sich auf Hochglanz polieren und zeichnet sich immer noch durch hohe Widerstandsfähigkeit gegen Oxydation und Anlaufen aus. I Auf Grund ihrer vorteilhaften Eigenschaften läßt sich die Legierung zu den verschiedenartigsten Gegenständen einfacher und komplizierter Formen, z. B. zu Schmuckwaren, Schreibfedern, Kontakten für elektrische Schalter, Spinndüsen für Kunstseide, elektrischen Widerstandsdrähten, zahntechnischen Gegenständen usw., verarbeiten.The new alloy is correspondingly white in color polish to a high gloss and is still characterized by high resistance against oxidation and tarnishing. I Because of their advantageous properties the alloy to the most diverse objects can be made easier and more complicated Forms, e.g. B. on jewelry, pens, contacts for electrical switches, Spinnerets for rayon, electrical resistance wires, dental objects etc., process.

Da Kupfer im allgemeinen als Härtungsmittel gilt, ist es überraschend, daß es als Bestandteil einer außerdem Ruthenium als Här tungsmittel enthaltenden Palladiumlegierung diese leichter bearbeitbar macht, und zwar in dem Maße, daß Ruthenium in einer Menge anwendbar isst, die für sich allein zu einer infolge zu großer Sprödigkeit nicht mehr bearbeitbaren Legierung führen würde.Since copper is generally considered a hardening agent, it is surprising that it as part of a ruthenium as a hardening agent also containing Palladium alloy makes this easier to work with, to the extent that ruthenium eats usable in an amount that in itself leads to excessive brittleness no longer machinable alloy would result.

Die Verhältnisse der die Legierung -,zusammensetzenden Metalle können sich in weiten Grenzen ändern. Die Palladiummenge liegt vorzugsweise zwischen 8o und g8%. Der Ruthenium- und Kupfergehalt können je o,5 bis 15% betragen, liegen aber vorzugsweise zwischen j.e i und 1#o0%. Zweckmäßig werden Rutheriium und Kupfer in annähernd gleichen Mengen verwendet. Die besonders bevorzugte- Legierung `#.@entliäll'-93, 5 0'o Palladium, etwa. 3, 5 0'o R uthenium und. etwa 3% Kupfer. Die nachstehende Tabelle gibt Ein Bild der Härte verschiedener in den Bereich der Erfindung fallender Legierungen. ,_ Brinellhärte ;Ba#bv Brinell" Pd Ru 'Cu 2 mm Kugel; i2okg Dru219,, 15 Minuten 98 1 1 log 89 95 4 1 158 89 93,5 4,5 2 175 107 95 2 3 1,3 74 93,5 3,5 3 163 9o 80 10 10 227 166 70 15 15 237 152 84,5 0,5 15 - 178 =oi 84,5 15 0;5 2 29 198 The proportions of the metals composing the alloy can vary within wide limits. The amount of palladium is preferably between 80 and 8%. The ruthenium and copper content can each be 0.5 to 15%, but are preferably between 1 and 10% each. Appropriately, rutherium and copper are used in approximately equal amounts. The particularly preferred alloy `#. @ Entliäll'-93.5 0'o palladium, about. 3, 5 0'o ruthenium and. about 3% copper. The table below gives a picture of the hardness of various alloys falling within the scope of the invention. , _ Brinell hardness; Ba # bv Brinell " Pd Ru 'Cu 2mm sphere; i2okg Dru219 ,, 15 minutes 98 1 1 log 89 95 4 1 158 89 93.5 4.5 2 1 75 1 0 7 95 2 3 1.3 74 93.5 3.5 3 163 9o 80 1 0 10 227 166 70 15 15 237 152 84.5 0.5 15 - 178 = oi 84.5 15 0; 5 2 29 198

Claims (4)

PATENTANSPRÜCHE: I: Pälladiümlegierung, gekennzeichnet durch nachstehende Zusammensetzung: je o,5 bis i 5 @!o, vorzugsweise i bis i o o/o Rutlienium und Kupfer, Rest mindestens 70% Palladium. PATENT CLAIMS: I: Palladium alloy, characterized by the following Composition: o, 5 to i 5 @! O, preferably i to i o o / o rutlienium and copper, The remainder at least 70% palladium. 2. Legierung nach Anspruch i, dadurch gekennzeichnet, daß sie annähernd gleiche Teile Rutlienium und Kupfer enthält. 2. Alloy according to claim i, characterized in that that it contains approximately equal parts rutlienium and copper. 3. Legierung nach Anspruch i oder 2, dadurch gekennzeichnet, daß sie 8o bis 98% Palladium enthält. 3. Alloy after Claim 1 or 2, characterized in that it contains 80 to 98% palladium. 4. Legierung nach Anspruch 3, gekennzeichnet durch einen Gehalt von 93.50i'0 Palladium, 3,5% Ruthenium und 30,'o Kupfer.4. Alloy according to claim 3, characterized by a content of 93.50i'0 palladium, 3.5% ruthenium and 30, 'o copper.
DE1938B0184136 1938-01-29 1938-08-03 Palladium alloy Expired DE692208C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US187660A US2132116A (en) 1938-01-29 1938-01-29 Alloy

Publications (1)

Publication Number Publication Date
DE692208C true DE692208C (en) 1940-06-14

Family

ID=22689912

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938B0184136 Expired DE692208C (en) 1938-01-29 1938-08-03 Palladium alloy

Country Status (4)

Country Link
US (1) US2132116A (en)
CH (1) CH209201A (en)
DE (1) DE692208C (en)
GB (1) GB510640A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092213B (en) * 1957-04-20 1960-11-03 Degussa Use of a noble metal alloy as a material for resistors, especially for potentiometer wires
DE1092212B (en) * 1957-04-20 1960-11-03 Degussa Use of a noble metal alloy as a material for resistors, especially for potentiometer wires

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387072A (en) * 1982-04-27 1983-06-07 The J. M. Ney Company Novel palladium alloy and dental restorations utilizing same
US4451639A (en) * 1982-07-21 1984-05-29 Jeneric Industries, Inc. Dental alloys for porcelain-fused-to-metal restorations
US4419325A (en) * 1982-07-21 1983-12-06 Jeneric Industries, Inc. Dental alloys for porcelain-fused-to-metal restorations
US4400350A (en) * 1982-09-29 1983-08-23 W. C. Heraeus Gmbh Palladium dental alloy
US4412970A (en) * 1982-12-06 1983-11-01 Jeneric Industries, Inc. Palladium based dental alloys
US4518564A (en) * 1983-10-03 1985-05-21 Jeneric Industries, Inc. Gallium and silver free, palladium based dental alloys for porcelain-fused-to-metal restorations
FR2617191B1 (en) * 1987-06-26 1989-12-08 Louyot Comptoir Lyon Alemand NEW PALLADIUM-BASED ALLOYS CONTAINING AT LEAST ONE ADDITION ELEMENT SELECTED FROM THE GROUP CONSISTING OF INDIUM, ANTIMONY, BISMUTH, CADMIUM, ZINC, COPPER AND MONEY, ESPECIALLY USED IN THE INDUSTRY GLASS AND USE OF SUCH ALLOYS IN THE GLASS INDUSTRY
DE102009059046A1 (en) * 2009-12-14 2011-06-16 Wieland Dental + Technik Gmbh & Co. Kg Palladium jewelry alloy, useful in semi-finished product for jewelry industry, comprises palladium, ruthenium and/or niobium, and a further metal comprising copper, tungsten or rhenium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092213B (en) * 1957-04-20 1960-11-03 Degussa Use of a noble metal alloy as a material for resistors, especially for potentiometer wires
DE1092212B (en) * 1957-04-20 1960-11-03 Degussa Use of a noble metal alloy as a material for resistors, especially for potentiometer wires

Also Published As

Publication number Publication date
GB510640A (en) 1939-08-04
CH209201A (en) 1940-03-31
US2132116A (en) 1938-10-04

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