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silver contact alloys

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Image
Published: 01 January 2006
Fig. 29 Heavily tarnished silver alloy relay contact More
Image
Published: 01 January 1993
Fig. 3 Tungsten-silver alloy contact in position for induction brazing to C18200 chromium-copper (0.6% Cr) post; BAg-3 silver alloy filler metal More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001097
EISBN: 978-1-62708-162-7
.... A majority of contact applications in the electrical industry utilize silver-type contacts, which include the pure metal, alloys, and powder metal combinations. Silver, which has the highest electrical and thermal conductivity of all metals, is also used as a plated, brazed, or mechanically bonded overlay...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
... grades have been developed, and most of these are copper-graphite (4 to 70% graphite) and silver-graphite (3 to 50% graphite) alloys (the latter alloys can also contain molybdenum disulfide). More brush contacts are made from copper and copper alloys than from any other class of material...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006091
EISBN: 978-1-62708-175-7
... refractory metals silver-base composites tungsten ELECTRICAL CONTACTS are metal devices that make and break electrical circuits. Contacts are made of elemental metals, composites, or alloys that are made by the melt-cast method or manufactured by powder metallurgy (PM) processes. Powder metallurgy...
Image
Published: 01 January 1990
combination with a spherical surface shows considerably longer life than some other combinations of silver sintered products; it did not weld in 100 operations. 24 V dc, 100 A: Shown is the scatter of contact potential after 200,000 operations for several samples of different alloy combinations. Under More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003150
EISBN: 978-1-62708-199-3
..., in order to dispersion strengthen silver for use in electrical contacts. Brazing Alloys A very wide range of silver-based brazing filler metal alloys is described by various standards, most notably ASME SFA5.8 and AWS A5.8, which give alloy designations in the form BAg-x. These alloys...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001454
EISBN: 978-1-62708-173-3
... precipitation hardening can occur with improper heating. The brazing of a tungsten-silver contact required the use of a nickel-containing silver alloy, BAg3, to join with chromium-copper. Induction brazing is the best option for retaining material properties. Fig. 3 Tungsten-silver alloy contact...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006259
EISBN: 978-1-62708-169-6
.... The annealing practice, however, remains the same. Coin Silver and Silver-Copper Eutectic Alloys Both coin silver (90%Ag-10%Cu, in accordance with ASTM B617) and silver-copper eutectic (72%Ag-28%Cu, in accordance with ASTM B628) alloys are used for electrical contact applications. Coin silver also...
Book Chapter

Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001087
EISBN: 978-1-62708-162-7
... on the application. This phenomenon has been used to advantage in the internal oxidation of base metal alloying constituents (such as cadmium, rare earths, cerium, or calcium) in silver alloys. The resulting silver composite containing fine, well-dispersed oxide particles has been used in electrical contact...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001088
EISBN: 978-1-62708-162-7
...% Ag was used for U.S. silver coins and is used for electrical contacts operating under service conditions where pure silver is considered too soft and is more likely to pit. The 28% Cu eutectic alloy finds some use as a brazing or soldering alloy. With heavy cold work, it is quite strong and is used...
Image
Published: 01 January 1990
Fig. 1 Hardness and electrical resistivity versus alloy content for silver alloy contacts More
Image
Published: 01 December 1998
Fig. 1 Hardness and electrical resistivity versus alloy content for silver alloy contacts More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004209
EISBN: 978-1-62708-184-9
.... Contact allergic reactions to chromium from dental alloys are also reported ( Ref 20 ), but the occurrences of such reactions are rare. Mercury is contained in amalgam fillings, which contain microstructural phases composed of silver-mercury and tin-mercury. Mercury ions may be released from...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000631
EISBN: 978-1-62708-181-8
... acted as a lubricant. Failure occurred at a high current of 50 A. Fig. 1340 : Silver brush ends alloyed with copper as a result of interfacial melting. SEM, 215×. Fig. 1341 : Same as Fig. 1340 , but at higher magnification. SEM, 370×. Fig. 1342 : Pits on copper slip ring caused by arcing. SEM, 1800...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003135
EISBN: 978-1-62708-199-3
... and nickel silver P/M parts, copper-nickel P/M parts, copper-lead P/M parts, copper-base P/M friction materials, copper-base P/M electrical contact materials, copper-base P/M brush materials, infiltrated parts, and oxide-dispersion-strengthened copper P/M materials. copper alloy powders copper powders...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001389
EISBN: 978-1-62708-173-3
... that contribute to high quality in an RB joint. The article discusses the classification of RB such as manual RB or automatic RB. It describes the selection of metal electrodes and filler metals for RB. The filler metals include silver alloys, aluminum-silicon alloys, and copper-phosphorus alloys. aluminum...
Series: ASM Handbook