USRE32005E - Magnetic alloy having a low melting point - Google Patents

Magnetic alloy having a low melting point Download PDF

Info

Publication number
USRE32005E
USRE32005E US06/419,507 US41950782A USRE32005E US RE32005 E USRE32005 E US RE32005E US 41950782 A US41950782 A US 41950782A US RE32005 E USRE32005 E US RE32005E
Authority
US
United States
Prior art keywords
alloy
weight
content
less
melting point
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 - Lifetime
Application number
US06/419,507
Inventor
Takeshi Miyazaki
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.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of USRE32005E publication Critical patent/USRE32005E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147Alloys characterised by their composition

Definitions

  • the present invention relates in general to a magnetic alloy, and more particularly to a magnetic alloy having a relatively low melting point such as 1350 degrees in C or lower and a good resistance to corrosion, and having a magnetic property such that its magnetic flux density value B 100 is 2000 G or higher when it is subjected to an external magnetic field of 100 G.
  • Magnet alloys have a variety of applications in practice, and therefore, there have been developed a various number of magnet alloys which are, respectively, suitable for varied applications.
  • the conventional magnet alloys have relatively high melting points, for instance, a silicon steel and a permalloy-family alloy, both of which are generally known as high magnetic permeability alloys, have such melting points of about 1500° and 1450° C., respectively. Consequently, in order to melt and cast such magnet alloys such means as a high frequency furnace, an electric arc furnace or the like is used.
  • magnet alloy having a still lower melting point which can be processed for melting and casting with much greater ease, but there has not been developed any of such alloys as yet.
  • magnet alloys which can readily and conveniently be melted and cast
  • the average melting point of such alloys which can be melted and processed by such common furnaces using such fuels as city gas plus oxygen is typically about 1300° C. or lower though it may vary depending upon the type and construction of such furnaces.
  • a small-sized furnace of high frequency type, particularly of a high performance type it is practicably possible to melt such alloys having a melting point of 1400° C. or higher.
  • melting of such alloy is carried out in an open atmosphere and therefore, melting work of a small quantity of material is preferably carried out in a period of time as short as possible. Therefore, the provision of an alloy that can be processed at such a relatively low temperature as 1350° C. or lower will make it easier to attain the object as stated above.
  • an improved magnet alloy consisting essentially of at least one or more of the elements selected from the group consisting of less than 79 wt. % of Co.Iadd., e.g., 20-36 wt. % Co, .Iaddend.and less than 80 wt. % of Ni.Iadd., e.g., 29-45 wt. % Ni, .Iaddend.and the remainder being essentially Pd.
  • a magnet alloy represented by 43% Pd-57% Co was melted and cast at a melting temperature (TM) of 1240° C. by using the ordinary city gas as a furnace fuel.
  • TM melting temperature
  • the tested alloy exhibited the magnetic flux density B 100 of 10000 G, the Hc value of 5.8 Oe, when it was subjected to an external magnetic field of 100 Oe and the alloy shows Vickers' hardness Hv of 125. No appreciable change in color was observed, nor any other appreciable change after it was immersed and kept in a 1 wt. % aqueous solution of Na 2 S for a period of 24 hours.
  • the alloy specimen consisting essentially of 43.5 wt. % of Pd and 56.5 wt. % of Ni was melted and cast by using the normal city gas as a fuel, the melting temperature TM was 1280° C., and its magnetic and physical properties tested are shown in Table 1.
  • the alloy exhibited the magnetic flux density B 100 of 3900 G, and the Hc value of 3.3 Oe, when it was subjected to the external magnetic field of 100 Oe. There was no appreciable change in color or any other change observed during the immersion test where the alloy was immersed in a 1 wt. % aqueous solution of Na 2 S for a period of 24 hours.
  • the content of Co in the magnet alloy according to the present invention, was found to be effective to bring an improvement in resistance to corrosion and also to an increase of hardness of an alloy, if the Co content exceeds 79 wt. %, there was observed excessive precipitation of the Co content so it must be kept less than 79%.
  • the melting point of the alloy in order to keep the melting point of the alloy at 1350° C. or lower, it was found advantageous in practice to keep the range of the Co content from 20 to 70 wt. %.
  • a magnet alloy could be made further stable in its resistance against corrosion by preparing it with a Pd alloy content. .Iadd.Another preferred range of Co is 7-50 wt. %. .Iaddend.
  • Ni content in the order of 80 wt. % or lower in the magnet alloy according to this invention is an essential condition for rendering the melting temperature 1350° C. or lower, and by preparing the allow with a Pd content, it was possible to make the alloy excellent in corrosion resistance.
  • .Iadd.Another preferred range of Ni is 15-58 wt. % when, e.g., the range of Co is 7-50 wt. %. .Iaddend.
  • Fe in the alloy has an effect to improve a magnetic flux density and to slightly increase the hardness of the alloy, but if the Fe content exceeds the order of 30 wt. %, this would bring an adverse effect to have its corrosion resistance remarkably deteriorated, and also to increase its melting point. In this consideration, it is preferred to keep the Fe content 30 wt. % or less, more preferably 18 wt. % or less.
  • a Cu substantially contributes to an increased hardness of an alloy, if it exceeds 20 wt. %, this would result in a very poor magnetic flux density, therefore, it is preferrable to have the Fe content in the order of 20 wt. % or less, more preferably 10 wt. % or less.
  • Pt may be added in the order of 20 wt. % or less in order to attain an increase in a hardness and an improvement in a corrosion resistance of the alloy, but as this would also effect a substantial reduction of a magnetic flux density thereof, it is preferred to have the Pt content in the order of 8 wt. %.
  • Au will contribute substantially to an improvement in corrosion resistance, but if it exceeds the order of 30 wt. %, there occurs a precipitation of the secondary phase, thus resulting in brittleness. In this respect, it is preferred to have the Au content in the order of 23 wt. % or less.
  • Sn, Zn and Cd will contribute to a substantial increase in a hardness and an improvement in a castability, yet bring poor mechanical properties.
  • these additives were kept in the order of 3 wt. % or less, respectively.
  • Mn effects an increase of a hardness of the alloy, but an excessive content would cause a drastic reduction in magnetic flux density thereof.
  • the Ag content will effect substantially an increase in hardness, contribute to a minor improvement in corrosion resistance, and bring a slightly lower melting point of the alloy, but substantially reducing a magnetic flux density. Therefore, the Ag content was kept in the order of 3 wt. % or less.
  • one or more of the elements selected from the group consisting of Nb, Ti, V, Si, Mg and Hf may be added in only small amounts. Also, such elements as Mo, W and Ta are effective to obtain increase in a hardness of the alloy according to this invention.
  • the useful and improved magnet alloys having a relatively low melting point which can be applied to the laboratory use or to the dental use by virtue of their advantageous feature, i.e., these magnet alloys can be handled very easily in a melting and casting processing by using an ordinary furnace using fuel such as city gas and the like.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Dental Preparations (AREA)

Abstract

A magnetic alloy having a relatively low melting point, particularly for dental use.
The low melting point magnet alloy contains one or more elements of Co and Ni, a Co content of which being in the range of 79 wt. % or less, a Ni content being in the range of 80 wt. % or less, the remainder being essentially a Pd content.

Description

BACKGROUND OF THE INVENTION
The present invention relates in general to a magnetic alloy, and more particularly to a magnetic alloy having a relatively low melting point such as 1350 degrees in C or lower and a good resistance to corrosion, and having a magnetic property such that its magnetic flux density value B100 is 2000 G or higher when it is subjected to an external magnetic field of 100 G.
Magnet alloys have a variety of applications in practice, and therefore, there have been developed a various number of magnet alloys which are, respectively, suitable for varied applications. With respect to the melting point of such magnet alloys, the conventional magnet alloys have relatively high melting points, for instance, a silicon steel and a permalloy-family alloy, both of which are generally known as high magnetic permeability alloys, have such melting points of about 1500° and 1450° C., respectively. Consequently, in order to melt and cast such magnet alloys such means as a high frequency furnace, an electric arc furnace or the like is used. Actually, there has been a strong demand for magnet alloy having a still lower melting point which can be processed for melting and casting with much greater ease, but there has not been developed any of such alloys as yet. As a typical use of such magnet alloys which can readily and conveniently be melted and cast, there are, for example, a relatively small quantity of magnet alloy to be used in a laboratory for experimental purposes by using a very simple furnace unit or the like which uses such a widely used fuel as city gas or the city gas plus oxygen, or the preparation of alloys for dental use by using ordinary type melting equipment such as owned by dentists or dental technicians, etc.
The average melting point of such alloys which can be melted and processed by such common furnaces using such fuels as city gas plus oxygen is typically about 1300° C. or lower though it may vary depending upon the type and construction of such furnaces. With a small-sized furnace of high frequency type, particularly of a high performance type, it is practicably possible to melt such alloys having a melting point of 1400° C. or higher. However, usually, melting of such alloy is carried out in an open atmosphere and therefore, melting work of a small quantity of material is preferably carried out in a period of time as short as possible. Therefore, the provision of an alloy that can be processed at such a relatively low temperature as 1350° C. or lower will make it easier to attain the object as stated above. In this respect, there has long been a strong desire for the advent of such useful magnet alloy having a melting point of at most 1350° C. or lower, or more preferably 1300° C. or lower. For use as an acceptable magnet alloy, it is essential that such an alloy should have a saturated magnetic flux density of 2000 G or higher as a minimum, and in addition, for the dental use it is essential that such an alloy should have a superior resistance to corrosion. As for a specific use, such an alloy is required to be satisfactory for porcelain coating.
SUMMARY OF THE INVENTION
Therefore, it is a primary object of the present invention to provide an improved and useful magnet alloy having such a relatively low melting point as 1350° C. or lower and a sufficient resistance to corrosion, and further having a saturated magnetic flux density of 2000 G or higher.
According to the present invention, briefly summarized by way of a preferred embodiment thereof, there is provided an improved magnet alloy consisting essentially of at least one or more of the elements selected from the group consisting of less than 79 wt. % of Co.Iadd., e.g., 20-36 wt. % Co, .Iaddend.and less than 80 wt. % of Ni.Iadd., e.g., 29-45 wt. % Ni, .Iaddend.and the remainder being essentially Pd.
Further objects and advantageous features of the present invention will become more apparent when read the following detailed description by way of a preferred embodiment thereof.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Description will now be given in detail on preferred embodiments of an improved and useful magnet alloy according to the present invention.
A magnet alloy represented by 43% Pd-57% Co was melted and cast at a melting temperature (TM) of 1240° C. by using the ordinary city gas as a furnace fuel. The magnetic and physical properties of this cast alloy were tested, and the results of such test are as given in Table 1.
As typically shown in Table 1, the tested alloy exhibited the magnetic flux density B100 of 10000 G, the Hc value of 5.8 Oe, when it was subjected to an external magnetic field of 100 Oe and the alloy shows Vickers' hardness Hv of 125. No appreciable change in color was observed, nor any other appreciable change after it was immersed and kept in a 1 wt. % aqueous solution of Na2 S for a period of 24 hours. When the alloy specimen consisting essentially of 43.5 wt. % of Pd and 56.5 wt. % of Ni was melted and cast by using the normal city gas as a fuel, the melting temperature TM was 1280° C., and its magnetic and physical properties tested are shown in Table 1. The alloy exhibited the magnetic flux density B100 of 3900 G, and the Hc value of 3.3 Oe, when it was subjected to the external magnetic field of 100 Oe. There was no appreciable change in color or any other change observed during the immersion test where the alloy was immersed in a 1 wt. % aqueous solution of Na2 S for a period of 24 hours.
A series of tests were conducted on alloys having different constituent elements, and the results are shown in Table 1. The observation with substantially no color change in the immersion test using a 1 wt. % aqueous solution of Na2 S was similarly good with any of these alloys under test.
              TABLE I                                                     
______________________________________                                    
                       Magnetic                                           
                       Property                                           
Chemical Composition (wt. %)                                              
                      TM              Hc                                  
No.  Pd     Co     Ni   Other Additives                                   
                                  (°C.)                            
                                       B.sub.100 (G)                      
                                              (Oe)                        
______________________________________                                    
1    43     57                    1,240                                   
                                       10,000 5.8                         
2    41     54          Cr: 5     1,270                                   
                                       7,300  5.9                         
3    43     47          Fe: 10    1,260                                   
                                       11,100 6.3                         
4    43     53          Cu: 4     1,230                                   
                                       6,800  11.0                        
5    45     51          Mn: 3, Zn: 1                                      
                                  1,240                                   
                                       6,800  9.5                         
6    45     48          Pt: 5, Sn: 2                                      
                                  1,230                                   
                                       6,100  15.2                        
7    43     53          Au: 3, Ag: 1                                      
                                  1,230                                   
                                       6,900  18.5                        
8    35     54          Cu: 8, Cr: 3                                      
                                  1,240                                   
                                       5,300  11.0                        
9    35     52          Fe: 10, Cr: 3                                     
                                  1,290                                   
                                       9,500  8.5                         
10   43.5          56.5           1,250                                   
                                       3,900  3.3                         
11   40.3          52.4 Cr: 7.3   1,230                                   
                                       2,700  7.8                         
12   36.5          47.4 Fe: 16.1  1,220                                   
                                       11,400 1.2                         
13   42.8          53.7 Al: 3.5   1,150                                   
                                       2,600  16.5                        
14   43     42     15             1,200                                   
                                       8,200  5.5                         
15   43.5   27.4   21.9           1,190                                   
                                       7,200  5.6                         
16   38.2   28.4   30.2 Cr: 3.2   1,180                                   
                                       6,500  5.4                         
17   37.1   8.3    41.3 Cu: 13.3  1,140                                   
                                       2,800  2.8                         
18   47.3   13.2   26.3 Cr: 8.3, Cu: 9.4                                  
                                  1,120                                   
                                       4,600  4.7                         
19   42.8   28.0   28.0 Al: 1.2   1,210                                   
                                       5,100  11.3                        
20   38.7   17.1   31.9 Pt: 12.3  1,280                                   
                                       5,900  8.3                         
21   35.1   7.0    37.0 Au: 21.0  1,170                                   
                                       4,300  16.2                        
22   37.9   21.8   23.9 Mn: 16.4  1,100                                   
                                       7,300  6.4                         
______________________________________                                    
Although the content of Co, in the magnet alloy according to the present invention, was found to be effective to bring an improvement in resistance to corrosion and also to an increase of hardness of an alloy, if the Co content exceeds 79 wt. %, there was observed excessive precipitation of the Co content so it must be kept less than 79%. In order to keep the melting point of the alloy at 1350° C. or lower, it was found advantageous in practice to keep the range of the Co content from 20 to 70 wt. %. A magnet alloy could be made further stable in its resistance against corrosion by preparing it with a Pd alloy content. .Iadd.Another preferred range of Co is 7-50 wt. %. .Iaddend.
An Ni content in the order of 80 wt. % or lower in the magnet alloy according to this invention is an essential condition for rendering the melting temperature 1350° C. or lower, and by preparing the allow with a Pd content, it was possible to make the alloy excellent in corrosion resistance. .Iadd.Another preferred range of Ni is 15-58 wt. % when, e.g., the range of Co is 7-50 wt. %. .Iaddend.
Though it was generally knon that an addition of Cr would bring an improvement in corrosion resistance and an increase of hardness of an alloy, it makes the magnetic flux density and castability of an alloy substantially very poor if the Cr content exceeds the level of 15 wt. %. In this respect, it is necessary in practice to keep the Cr content less than 15 wt. %, more preferably 7 wt. % or less. Moreover, an Ni/Pd alloy according to this invention including only a small amount of Cr was found to have an excellent capability for porcelain coating.
Fe in the alloy has an effect to improve a magnetic flux density and to slightly increase the hardness of the alloy, but if the Fe content exceeds the order of 30 wt. %, this would bring an adverse effect to have its corrosion resistance remarkably deteriorated, and also to increase its melting point. In this consideration, it is preferred to keep the Fe content 30 wt. % or less, more preferably 18 wt. % or less.
Though a Cu substantially contributes to an increased hardness of an alloy, if it exceeds 20 wt. %, this would result in a very poor magnetic flux density, therefore, it is preferrable to have the Fe content in the order of 20 wt. % or less, more preferably 10 wt. % or less.
An Al content in the order of 10 wt. % or less will bring a substantial increase in hardness of an alloy. If the Al content is too high, this would make the magnetic flux density B100 with application of an external 100 Oe field substantially lower, and bring a poor castability. In the practice of this invention, an alloy containing Ni yet including only a small quantity of Al was found to have an excellent capability of porcelain coating.
Pt may be added in the order of 20 wt. % or less in order to attain an increase in a hardness and an improvement in a corrosion resistance of the alloy, but as this would also effect a substantial reduction of a magnetic flux density thereof, it is preferred to have the Pt content in the order of 8 wt. %.
Au will contribute substantially to an improvement in corrosion resistance, but if it exceeds the order of 30 wt. %, there occurs a precipitation of the secondary phase, thus resulting in brittleness. In this respect, it is preferred to have the Au content in the order of 23 wt. % or less.
Sn, Zn and Cd will contribute to a substantial increase in a hardness and an improvement in a castability, yet bring poor mechanical properties. In this consideration, these additives were kept in the order of 3 wt. % or less, respectively.
Mn effects an increase of a hardness of the alloy, but an excessive content would cause a drastic reduction in magnetic flux density thereof.
Ag content will effect substantially an increase in hardness, contribute to a minor improvement in corrosion resistance, and bring a slightly lower melting point of the alloy, but substantially reducing a magnetic flux density. Therefore, the Ag content was kept in the order of 3 wt. % or less.
In the practice of the present invention, for the purpose of increasing the hardness of an alloy, one or more of the elements selected from the group consisting of Nb, Ti, V, Si, Mg and Hf may be added in only small amounts. Also, such elements as Mo, W and Ta are effective to obtain increase in a hardness of the alloy according to this invention.
As fully explained hereinbefore, according to the present invention, there are presented the useful and improved magnet alloys having a relatively low melting point which can be applied to the laboratory use or to the dental use by virtue of their advantageous feature, i.e., these magnet alloys can be handled very easily in a melting and casting processing by using an ordinary furnace using fuel such as city gas and the like.

Claims (3)

What is claimed is:
1. A magnet alloy which consists essentially of Co, Ni and Pd, the content of Co being in the range of from 20 to .[.70.]. .Iadd.36 .Iaddend.weight %, the content of Ni being in the range of 29 to .[.80.]. .Iadd.45 .Iaddend.weight %, and the content of Pd being at least 35 weight %, said alloy having a magnetic flux density value B100 of at least 2000 G and a melting point of not more than 1350° C.
2. A magnet alloy which consists essentially of Co, Ni, Pd and at least one additive element, the content of Co being 20 to .[.70.]. .Iadd.36 .Iaddend.weight %, the content of Ni being in the range of 29 to .[.80.]. .Iadd.45 .Iaddend.weight %, the content of Pd being at least 35 weight % and the at least one additive element being selected from the group consisting of 15 weight % or less Cr, 30 weight % or less Fe, 20 weight % or less Cu, 3 weight % or less Zn, 3 weight % or less Sn, 20 weight % or less Pt, 23 weight % or less Au and 3 weight % or less Ag, said alloy having a magnetic flux density value B100 of at least 2000 G and a melting point of not more than 1350° C. .Iadd.
3. A magnet alloy which consists of Co, Ni and Pd, and inevitable impurities, the content of Co being in the range of from 7 to 50 weight %, the content of Ni being in the range of 15 to 58 weight %, and the content of Pd being at least 35 wt. %, the alloy having a magnetic flux density value B100 of at least 2,000 G and a melting point of not more than 1350° C. .Iaddend. .Iadd.4. A magnet alloy which consists of Co, Ni, Pd, at least one additive element, and inevitable impurities, the content of Co being 7 to 50 weight %, the content of Ni being 15 to 58 weight %, the content of Pd being at least 35 weight % and the at least one additive element being selected from the group consisting of 15 weight % or less Cr, 30 weight % or less Fe, 20 weight % or less Cu, 3 weight % or less Zn, 20 weight % or less Pt, 23 weight % or less Au and 3 weight % or less Ag, the alloy having a magnetic flux density value B100 of at least 2,000 G and a melting point of not more than 1350° C.
US06/419,507 1978-02-06 1982-09-17 Magnetic alloy having a low melting point Expired - Lifetime USRE32005E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53-12206 1978-02-06
JP1220678A JPS54104427A (en) 1978-02-06 1978-02-06 Low temperature fusion magnetic alloy

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US05/904,321 Reissue US4239533A (en) 1978-02-06 1978-05-09 Magnetic alloy having a low melting point

Publications (1)

Publication Number Publication Date
USRE32005E true USRE32005E (en) 1985-10-15

Family

ID=11798904

Family Applications (2)

Application Number Title Priority Date Filing Date
US05/904,321 Ceased US4239533A (en) 1978-02-06 1978-05-09 Magnetic alloy having a low melting point
US06/419,507 Expired - Lifetime USRE32005E (en) 1978-02-06 1982-09-17 Magnetic alloy having a low melting point

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US05/904,321 Ceased US4239533A (en) 1978-02-06 1978-05-09 Magnetic alloy having a low melting point

Country Status (4)

Country Link
US (2) US4239533A (en)
JP (1) JPS54104427A (en)
DE (1) DE2820377A1 (en)
GB (1) GB1597803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020004018A1 (en) * 2000-01-26 2002-01-10 Arun Prasad Dental alloys

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009650C2 (en) * 1980-03-13 1982-11-04 Degussa Ag, 6000 Frankfurt Gold-free alloys for firing ceramic bodies
JPH03111528A (en) * 1989-09-26 1991-05-13 Toshiba Corp Magnetic alloy
DE19643602A1 (en) * 1996-10-22 1998-04-23 Dresden Ev Inst Festkoerper Process for the production of massive magnetic bodies
FR2768258A1 (en) * 1997-09-10 1999-03-12 Engelhard Clal Sas Magnetic iron-containing precious metal alloy
US20060078457A1 (en) * 2004-10-12 2006-04-13 Heraeus, Inc. Low oxygen content alloy compositions
US8623272B2 (en) * 2007-03-21 2014-01-07 The Argen Corporation Non-magnetic cobalt-palladium dental alloy

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1832307A (en) * 1925-07-11 1931-11-17 Western Electric Co Alloy for electrical contacts
US1999865A (en) * 1934-04-25 1935-04-30 Baker & Co Inc Alloy
US3497332A (en) * 1969-06-09 1970-02-24 Atomic Energy Commission Brazing alloy for joining graphite to graphite and to refractory metals
DE2039100A1 (en) * 1970-08-06 1972-02-10 Heraeus Gmbh W C Use of an alloy containing palladium for electrical contacts
US3928913A (en) * 1975-01-23 1975-12-30 Ney Co J M Palladium alloy for ceramic bonding
US4061495A (en) * 1974-07-08 1977-12-06 Johnson, Matthey & Co., Limited Platinum group metal-containing alloy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1832307A (en) * 1925-07-11 1931-11-17 Western Electric Co Alloy for electrical contacts
US1999865A (en) * 1934-04-25 1935-04-30 Baker & Co Inc Alloy
US3497332A (en) * 1969-06-09 1970-02-24 Atomic Energy Commission Brazing alloy for joining graphite to graphite and to refractory metals
DE2039100A1 (en) * 1970-08-06 1972-02-10 Heraeus Gmbh W C Use of an alloy containing palladium for electrical contacts
US4061495A (en) * 1974-07-08 1977-12-06 Johnson, Matthey & Co., Limited Platinum group metal-containing alloy
US3928913A (en) * 1975-01-23 1975-12-30 Ney Co J M Palladium alloy for ceramic bonding

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Katayama et al., "NMR Study in PdCo and PdNiCo Alloys", Journal of the Physical Society of Japan, vol. 40, No. 2, Feb. 1976, pp. 429-434.
Katayama et al., NMR Study in PdCo and PdNiCo Alloys , Journal of the Physical Society of Japan, vol. 40, No. 2, Feb. 1976, pp. 429 434. *
Metals Abstracts, "NMR Study in Pd-Co and Pd-Co-Ni Alloys", 76-11, 15-2152, Nov. 1976, p. 1840.
Metals Abstracts, NMR Study in Pd Co and Pd Co Ni Alloys , 76 11, 15 2152, Nov. 1976, p. 1840. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020004018A1 (en) * 2000-01-26 2002-01-10 Arun Prasad Dental alloys
US6656420B2 (en) * 2000-01-26 2003-12-02 Jeneric/Pentron Incorporated Dental alloys

Also Published As

Publication number Publication date
GB1597803A (en) 1981-09-09
DE2820377A1 (en) 1979-08-09
US4239533A (en) 1980-12-16
JPS54104427A (en) 1979-08-16

Similar Documents

Publication Publication Date Title
CA2072446C (en) Nickel-base heat-resistant alloy
US5158744A (en) Oxidation- and corrosion-resistant alloy for components for a medium temperature range based on doped iron aluminide, Fe3 Al
USRE32005E (en) Magnetic alloy having a low melting point
JPS5929105B2 (en) Fe-based alloy with excellent molten zinc corrosion resistance
US5167732A (en) Nickel aluminide base single crystal alloys
JPH01252758A (en) Nitrogen fortified fe-ni-cr alloy
US5135588A (en) Soft-magnetic nickel-iron-chromium alloy for magnetic cores
US2072911A (en) Alloy
AU606556B2 (en) High nickel chromium alloy
CA1101699A (en) High-strength, high-expansion manganese alloy
US4131494A (en) Corrosion resistant magnetic alloy
JPS6363617B2 (en)
JPS582259B2 (en) A high chromium alloy that exhibits excellent corrosion resistance against mixed acids consisting of nitric acid and hydrofluoric acid.
US4249942A (en) Copper base alloy containing manganese and cobalt
SU1719450A1 (en) Nickel base alloy
JPS60224731A (en) Heat resistant co-base alloy
JPH0711061B2 (en) Electromagnetic stainless steel for cold forging
JPS60224732A (en) Heat resistant co-base alloy
JPH0243816B2 (en) GASUTAABINYOKOKYODOCOKITAINETSUGOKIN
JP3225604B2 (en) Method for producing intermetallic compound precipitation-strengthened Ni-Cr-Mo-based alloy cast member having excellent corrosion resistance
JPH0243812B2 (en) GASUTAABINYOKOKYODOCOKITAINETSUGOKIN
JPS5919986B2 (en) Corrosion resistant magnetic alloy
JPS5949316B2 (en) Corrosion resistant magnetic material
JPS61549A (en) Co-base high-strength heat-resistant alloy for gas turbine
JPS60128235A (en) Magnetic alloy having high magnetic permeability