DE3247399A1 - Gold-palladium alloy of reduced gold content - Google Patents

Gold-palladium alloy of reduced gold content

Info

Publication number
DE3247399A1
DE3247399A1 DE19823247399 DE3247399A DE3247399A1 DE 3247399 A1 DE3247399 A1 DE 3247399A1 DE 19823247399 DE19823247399 DE 19823247399 DE 3247399 A DE3247399 A DE 3247399A DE 3247399 A1 DE3247399 A1 DE 3247399A1
Authority
DE
Germany
Prior art keywords
weight
gold
palladium
gallium
copper
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
Application number
DE19823247399
Other languages
German (de)
Other versions
DE3247399C2 (en
Inventor
Wulf Dipl.-Chem. Dr. Brämer
Anton 6454 Bruchköbel Domes
Erhard 6457 Maintal Koch
Franz Dipl.-Ing. Dr. 6450 Hanau Sperner
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.)
Kulzer GmbH
Original Assignee
Heraeus Edelmetalle GmbH
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 Heraeus Edelmetalle GmbH filed Critical Heraeus Edelmetalle GmbH
Priority to DE19823247399 priority Critical patent/DE3247399A1/en
Priority to NO834680A priority patent/NO163759C/en
Publication of DE3247399A1 publication Critical patent/DE3247399A1/en
Application granted granted Critical
Publication of DE3247399C2 publication Critical patent/DE3247399C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
    • A61K6/844—Noble metals

Abstract

Gold-palladium alloys for dental purposes, in particular for fusing to dental ceramic masses, consist of 10-40% of gold, 40-65% of palladium, 0-5% of platinum, 0-7% of silver, 5-15% of copper, 2-10% of indium, 0.5-10% of tin, 1-10% of gallium and 0.05-0.2% of iridium and/or ruthenium.

Description

Die Erfindung betrifft eine Gold-Palladium-Legierung für dentale Zwecke.The invention relates to a gold-palladium alloy for dental purposes.

Für die Herstellung von künstlichen Zahnkronen und Brücken werden neben hochgoldhaltigen Legierungen in zunehmendem Maße die sogenannten edelmetallreduzierten Legierungen eingesetzt. In Richtlinien für die zahnärztlich-prothetische Versorgung werden Empfehlungen für den Gehalt an Gold und Metallen der Platingruppe dieser Legierungen ausgesprochen; diese Richtlinien sind jedoch nicht einheitlich, sondern von Land zu Land verschieden.In addition to alloys with a high gold content, so-called low-precious metal alloys are increasingly being used for the manufacture of artificial tooth crowns and bridges. In guidelines for dental prosthetic care recommendations are given for the content of gold and metals of the platinum group of these alloys; however, these guidelines are not uniform and vary from country to country.

Eine Legierung mit reduziertem Edelmetall-Gehalt ist zum Beispiel aus der deutschen Offenlegungsschrift 29 44 755 bekannt. Sie eignet sich zum Aufbrennen von Porzellan und besteht aus 0-11 Gewichts-% Silber, 0-1 Gewichts% Aluminium, 31,8 -63,16 Gewichts-% Gold, 0-0,13 Gewichts-% Bor, 0-0,12 Gewichts-% Calcium, 0-5 Gewichts-% Kupfer, 0-0,75 Gewichts-% Eisen, 0-5 Gewichts-% Gallium, 0,5-10,55 Gewichts-% Indium, 0-0,04 Gewichts-% Lithium, 0-2 Gewichts-% Nickel, 28,96-57,97 Gewichts-% Palladium, 0-0,25 Gewichts-% Rhenium, 0-1,8 Gewichts-% Silicium, 0-7,5 Gewichts-% Zinn, 0-0,06 Gewichts-% Titan, 0-0,12 Gewichts-% Vanadin und 0-1,98 Gewichts-% Zink.An alloy with a reduced noble metal content is known from German Offenlegungsschrift No. 29 44 755, for example. It is suitable for firing porcelain and consists of 0-11% by weight silver, 0-1% by weight aluminum, 31.8-63.16% by weight gold, 0-0.13% by weight boron, 0-0 , 12% by weight calcium, 0-5% by weight copper, 0-0.75% by weight iron, 0-5% by weight gallium, 0.5-10.55% by weight indium, 0-0.04 Weight% lithium, 0-2 weight% nickel, 28.96-57.97 weight% palladium, 0-0.25 weight% rhenium, 0-1.8 weight% silicon, 0-7.5 Wt% tin, 0-0.06 wt% titanium, 0-0.12 wt% vanadium and 0-1.98 wt% zinc.

Es ist die Aufgabe der Erfindung, eine edelmetallreduzierte Gold-Palladium-Legierung mit vermindertem Gold-Gehalt zu finden, die sich wie hochgoldhaltige Legierungen verarbeiten und bearbeiten lässt, so dass die dort gewohnte Art des Schmelzens, Gießens usw. beibehalten werden kann.It is the object of the invention to find a precious metal-reduced gold-palladium alloy with reduced gold content, which can be processed and worked like high gold content alloys, so that the usual type of melting, casting, etc. can be retained.

Die Aufgabe der Erfindung wird durch eine Legierung gelöst, die gekennzeichnet ist durch 10-40 Gewichts-% Gold, 40-65 Gewichts-% Palladium, 0-5 Gewichts-% Platin, 0-7 Gewichts-% Silber, 5-15 Gewichts-% Kupfer, 2-10 Gewichts-% Indium, 0,5-10 Gewichts-% Zinn, 1-10 Gewichts-% Gallium und 0,05-0,2 Gewichts-% Iridium und/oder Ruthenium.The object of the invention is achieved by an alloy which is characterized by 10-40% by weight gold, 40-65% by weight palladium, 0-5% by weight platinum, 0-7% by weight silver, 5-15% by weight -% copper, 2-10% by weight indium, 0.5-10% by weight tin, 1-10% by weight gallium and 0.05-0.2% by weight iridium and / or ruthenium.

Die Verarbeitungstechnik der erfindungsgemäßen Legierung ist die gleiche wie bei einer hochgoldhaltigen. Sie kann sowohl im Graphittiegel als auch im Keramiktiegel geschmolzen und gegossen - Gießtemperatur nicht über 1400 °C - werden. Die Solidustemperatur liegt oberhalb von 1130 °C.The processing technique of the alloy according to the invention is the same as that of a high gold content. It can be melted and poured in graphite crucibles as well as in ceramic crucibles - casting temperature not exceeding 1400 ° C. The solidus temperature is above 1130 ° C.

Die Legierung besitzt alle für den Einsatz als Dentallegierung zur Herstellung sowohl von unverblendetem als auch mit Kunststoff oder Keramik verblendetem Zahnersatz erforderlichen Eigenschaften, wie Mundbeständigkeit, gutes Fließ- und Formfüllvermögen, homogenes, feinkörniges, globulares Gefüge, ausreichende mechanische Stabilität, auf die gebräuchlichen dentalkeramischen Massen abgestimmter thermischer Ausdehnungskoeffizienten und gute Haftung zur Keramik, und sie lässt sich gut fräsen, polieren und löten.The alloy has all the properties required for use as a dental alloy for the production of both unveneered and plastic or ceramic-veneered dentures, such as oral resistance, good flow and shape filling properties, homogeneous, fine-grain, globular structure, sufficient mechanical stability, compared to the common dental ceramic materials Coordinated thermal expansion coefficient and good adhesion to the ceramic, and it is easy to mill, polish and solder.

Besonders bewährt hat sich die Legierung ausThe alloy from

1.)1.)

15 Gewichts-% Gold15% gold by weight

1,9 Gewichts-% Palladium1.9% by weight palladium

8 Gewichts-% Kupfer8% copper by weight

8 Gewichts-% Indium8% by weight indium

3 Gewichts-% Zinn3% by weight tin

4 Gewichts-% Gallium4% by weight gallium

0,05 Gewichts-% Iridium0.05 wt% iridium

0,05 Gewichts-% Ruthenium0.05% by weight ruthenium

mit einer Liquidustemperatur von 1270 °C und einer Härte HV von 270,with a liquidus temperature of 1270 ° C and a hardness HV of 270,

2.)2.)

20 Gewichts-% Gold20% gold by weight

54,9 Gewichts-% Palladium54.9% by weight palladium

12 Gewichts-% Kupfer12% by weight copper

7 Gewichts-% Indium7% by weight indium

3 Gewichts-% Zinn3% by weight tin

3 Gewichts-% Gallium3% by weight gallium

0,05 Gewichts-% Iridium0.05 wt% iridium

0,05 Gewichts-% Ruthenium0.05% by weight ruthenium

mit einer Liquidustemperatur von 1285 °C und einer Härte HV von 240,with a liquidus temperature of 1285 ° C and a hardness HV of 240,

3.)3.)

30 Gewichts-% Gold30% gold by weight

48,9 Gewichts-% Palladium48.9% by weight palladium

7 Gewichts-% Kupfer7% by weight copper

9 Gewichts-% Indium9% by weight indium

2 Gewichts-% Zinn2% by weight tin

3 Gewichts-% Gallium3% by weight gallium

0,05 Gewichts-% Iridium0.05 wt% iridium

0,05 Gewichts-% Ruthenium0.05% by weight ruthenium

mit einer Liquidustemperatur von 1250 °C und einer Härte HV von 260,with a liquidus temperature of 1250 ° C and a hardness HV of 260,

4.)4.)

25 Gewichts-% Gold25% gold by weight

50,4 Gewichts-% Palladium50.4% by weight palladium

7 Gewichts-% Silber7% silver by weight

6 Gewichts-% Kupfer6% by weight copper

8 Gewichts-% Indium8% by weight indium

1,5 Gewichts-% Zinn1.5% by weight tin

2 Gewichts-% Gallium2% by weight gallium

0,05 Gewichts-% Iridium0.05 wt% iridium

0,05 Gewichts-% Ruthenium0.05% by weight ruthenium

mit einer Liquidustemperatur von 1250 °C und einer Härte HV von 250 undwith a liquidus temperature of 1250 ° C and a hardness HV of 250 and

5.)5.)

35 Gewichts-% Gold35% gold by weight

45,9 Gewichts-% Palladium45.9% by weight palladium

2 Gewichts-% Platin2% by weight platinum

2 Gewichts-% Silber2% silver by weight

5,5 Gewichts-% Kupfer5.5% copper by weight

7 Gewichts-% Indium7% by weight indium

0,5 Gewichts-% Zinn0.5% by weight tin

2 Gewichts-% Gallium2% by weight gallium

0,05 Gewichts-% Iridium0.05 wt% iridium

0,05 Gewichts-% Ruthenium0.05% by weight ruthenium

mit einer Liquidustemperatur von 1265 °C und einer Härte HV von 260.with a liquidus temperature of 1265 ° C and a hardness HV of 260.

Die erfindungsgemäße Legierung eignet sich besonders zur Herstellung von mit Keramik verblendetem Zahnersatz. Der Verbund zwischen Legierung und Keramik ist sehr gut. Die Keramik-Verblendung ist frei von Verfärbungen, Blasen und Rissen.The alloy according to the invention is particularly suitable for producing dental prostheses veneered with ceramic. The bond between alloy and ceramic is very good. The ceramic veneer is free of discoloration, bubbles and cracks.

Claims (6)

1. Gold-Palladium-Legierung für dentale Zwecke, gekennzeichnet durch 10-40 Gewichts-% Gold, 40-65 Gewichts-% Palladium, 0-5% Gewichts-% Platin, 0-7 Gewichts-% Silber, 5-15 Gewichts-% Kupfer, 2-10 Gewichts-% Indium, 0,5-10 Gewichts-% Zinn, 1-10 Gewichts-% Gallium und 0,05-0,2 Gewichts-% Iridium und/oder Ruthenium.1. Gold-palladium alloy for dental purposes, characterized by 10-40% by weight gold, 40-65% by weight palladium, 0-5%% by weight platinum, 0-7% by weight silver, 5-15% by weight -% copper, 2-10% by weight indium, 0.5-10% by weight tin, 1-10% by weight gallium and 0.05-0.2% by weight iridium and / or ruthenium. 2. Legierung nach Anspruch 1, gekennzeichnet durch 15 Gewichts-% Gold, 61,9 Gewichts-% Palladium, 8 Gewichts-% Kupfer, 8 Gewichts-% Indium, 3 Gewichts-% Zinn, 4 Gewichts-% Gallium, 0,05 Gewichts-% Iridium und 0,05 Gewichts-% Ruthenium.2. Alloy according to claim 1, characterized by 15% by weight gold, 61.9% by weight palladium, 8% by weight copper, 8% by weight indium, 3% by weight tin, 4% by weight gallium, 0.05 Weight% iridium and 0.05 weight% ruthenium. 3. Legierung nach Anspruch 1, gekennzeichnet durch 20 Gewichts-% Gold, 54,9 Gewichts-% Palladium, 12 Gewichts-% Kupfer, 7 Gewichts-% Indium, 3 Gewichts-% Zinn, 3 Gewichts-% Gallium, 0,05 Gewichts-% Iridium und 0,05 Gewichts-% Ruthenium.3. Alloy according to claim 1, characterized by 20% by weight gold, 54.9% by weight palladium, 12% by weight copper, 7% by weight indium, 3% by weight tin, 3% by weight gallium, 0.05 Weight% iridium and 0.05 weight% ruthenium. 4. Legierung nach Anspruch 1, gekennzeichnet durch 30 Gewichts-% Gold, 48,9 Gewichts-% Palladium, 7 Gewichts-% Kupfer, 9 Gewichts-% Indium, 2 Gewichts-% Zinn, 3 Gewichts-% Gallium, 0,05 Gewichts-% Iridium und 0,05 Gewichts-% Ruthenium.4. Alloy according to claim 1, characterized by 30% by weight gold, 48.9% by weight palladium, 7% by weight copper, 9% by weight indium, 2% by weight tin, 3% by weight gallium, 0.05 Weight% iridium and 0.05 weight% ruthenium. 5. Legierung nach Anspruch 1, gekennzeichnet durch 25 Gewichts-% Gold, 50,4 Gewichts-% Palladium, 7 Gewichts-% Silber, 6 Gewichts-% Kupfer, 8 Gewichts-% Indium, 1,5 Gewichts-% Zinn, 2 Gewichts-% Gallium, 0,05 Gewichts-% Iridium und 0,05 Gewichts-% Ruthenium.5. Alloy according to claim 1, characterized by 25% by weight gold, 50.4% by weight palladium, 7% by weight silver, 6% by weight copper, 8% by weight indium, 1.5% by weight tin, 2 % By weight gallium, 0.05% by weight iridium and 0.05% by weight ruthenium. 6. Legierung nach Anspruch 1, gekennzeichnet durch 35 Gewichts-% Gold, 45,9 Gewichts-% Palladium, 2 Gewichts-% Platin, 2 Gewichts-% Silber, 5,5 Gewichts-% Kupfer, 7 Gewichts-% Indium, 0,5 Gewichts-% Zinn, 2 Gewichts-% Gallium, 0,05 Gewichts-% Iridium und 0,05 Gewichts-% Ruthenium.6. Alloy according to claim 1, characterized by 35% by weight gold, 45.9% by weight palladium, 2% by weight platinum, 2% by weight silver, 5.5% by weight copper, 7% by weight indium, 0 , 5% by weight tin, 2% by weight gallium, 0.05% by weight iridium and 0.05% by weight ruthenium.
DE19823247399 1982-12-22 1982-12-22 Gold-palladium alloy of reduced gold content Granted DE3247399A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19823247399 DE3247399A1 (en) 1982-12-22 1982-12-22 Gold-palladium alloy of reduced gold content
NO834680A NO163759C (en) 1982-12-22 1983-12-19 MANTELBOELGESPERRE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823247399 DE3247399A1 (en) 1982-12-22 1982-12-22 Gold-palladium alloy of reduced gold content

Publications (2)

Publication Number Publication Date
DE3247399A1 true DE3247399A1 (en) 1984-07-05
DE3247399C2 DE3247399C2 (en) 1987-01-02

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Family Applications (1)

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NO (1) NO163759C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153559A2 (en) * 1984-02-24 1985-09-04 Degussa Aktiengesellschaft Low gold content dental alloys
EP0188249A2 (en) * 1985-01-11 1986-07-23 Itzhak Dr. Shoher Metal foil for preparing a dental coping and crown for a ceramo-metal restoration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020126C1 (en) * 1990-06-25 1991-06-13 Heraeus Edelmetalle Gmbh, 6450 Hanau, De Mfg. cast object used for e.g. jewellery or dental purposes - from precious metal alloy by lost wax process using pattern contg. uniformly dispersed grain refiner in wax and/or plastic

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944755A1 (en) * 1978-11-08 1980-05-22 Williams Gold Refining Co ALLOY FOR CERAMIC SUBSTRATE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944755A1 (en) * 1978-11-08 1980-05-22 Williams Gold Refining Co ALLOY FOR CERAMIC SUBSTRATE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Deutsche Offenlegungsschrift 29 44 755

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153559A2 (en) * 1984-02-24 1985-09-04 Degussa Aktiengesellschaft Low gold content dental alloys
EP0153559A3 (en) * 1984-02-24 1987-05-06 Degussa Aktiengesellschaft Low gold content dental alloys
EP0188249A2 (en) * 1985-01-11 1986-07-23 Itzhak Dr. Shoher Metal foil for preparing a dental coping and crown for a ceramo-metal restoration
EP0188249A3 (en) * 1985-01-11 1987-10-07 Itzhak Dr. Shoher Dental coping and crown for a ceramo-metal restoration

Also Published As

Publication number Publication date
NO834680L (en) 1984-06-25
DE3247399C2 (en) 1987-01-02
NO163759C (en) 1990-07-11
NO163759B (en) 1990-04-02

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D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HERAEUS KULZER GMBH, 63450 HANAU, DE

8339 Ceased/non-payment of the annual fee