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platinum group coatings

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001254
EISBN: 978-1-62708-170-2
... , 35 , 36 , 37 , and 38 . In most aqueous or oxygen-bearing environments, the platinum-group metals are coated with a very thin layer of the appropriate metal oxide. This film is referred to as a passive layer , and it serves to prevent the underlying metal from corroding. Thus, anodes fabricated...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006012
EISBN: 978-1-62708-172-6
... these metals may have very high corrosion resistance. Nanoparticle alloys can be fabricated by reducing two different metal salts, for example, in tetrahydrofuran using lithium hydride and triethylboron as a reducing agent. Examples of this are iron/cobalt (1 to 5 nm) and rhodium/platinum (1 to 4 nm...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006049
EISBN: 978-1-62708-172-6
... change slightly depending on the metal composition and the environmental chemistries. The most common galvanic series is that of metals and alloys in seawater ( Table 1 ). Table 1 Galvanic series of some commercial metals and alloys in seawater ↑ Platinum Noble or cathodic Gold...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006070
EISBN: 978-1-62708-172-6
... assessed by: Cathodic disbonding (7 days at 65 °C, or 150 °F, and 28 days at 25 °C, or 75 °F; platinum anode, 3 mm (0.1 in.) holiday, −1.5 V/calomel electrode) Hot water (65 °C, 30 days) knife adhesion The results for chloride contamination showed an almost linear cathodic disbonding level...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003150
EISBN: 978-1-62708-199-3
... Abstract Precious metals include gold, silver, and six platinum-group metals, namely, platinum, palladium, ruthenium, rhodium, osmium, and iridium. This article focuses on the consumption, trade practices, properties, product forms, and applications of these metals and their alloys. gold...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005670
EISBN: 978-1-62708-198-6
... gold coatings high-copper amalgam alloys iridium iridium oxide coatings mechanical properties modern stents noble metals osmium palladium physical properties platinum precious metals rhodium ruthenium traditional amalgam alloys THE FOCUS of this article is a review of noble and...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003158
EISBN: 978-1-62708-199-3
... great versatility of application. Thermocouples are grouped into two broad categories, namely, standard thermocouples, including five base-metal thermocouples and three noble-metal thermocouples that have been given letter designations, and nonstandard thermocouples, including iridium-rhodium, platinum...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003829
EISBN: 978-1-62708-183-2
... elements. The standard electrode potential for silver (Ag↔Ag + + e − ) is +0.79 V and is exceeded only by gold and the platinum group metals. Annealed silver has relatively low yield and tensile strengths, but appreciable strength can be induced through cold working. Tensile strength can be...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003181
EISBN: 978-1-62708-199-3
... alloys, titanium alloys, and platinum metals. It discusses the formability, equipment and tooling, and lubricants used in the forming operations of these nonferrous metals. formability forming equipment forming operations lubricants nonferrous metals tooling ALUMINUM...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.9781627081719
EISBN: 978-1-62708-171-9
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
..., molybdenum, tungsten, and rhenium. With the exception of two of the platinum-group metals, osmium and iridium, they have the highest melting temperatures and lowest vapor pressures of all metals. The refractory metals are readily degraded by oxidizing environments at moderately low temperatures, a property...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
..., tungsten, and rhenium. With the exception of two of the platinum-group metals, osmium and iridium, the refractory metals have the highest melting temperatures (>2000 °C, or 3630 °F) and the lowest vapor pressures of all metals. They are readily degraded by oxidizing environments at moderately low...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
.... Simple NiAl coatings are resistant against oxidation, but for conditions where hot corrosion can occur, incorporation of platinum, chromium, and/or silicon yields more resistant coatings. Degradation of aluminide coatings can be initiated by basic fluxing of Al 2 O 3 and proceeds by both basic...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001309
EISBN: 978-1-62708-170-2
... operating conditions are given in the article “Platinum-Group Metals Plating” in this Volume. Silver plating is used for decorative and functional purposes. Its useful characteristics for functional applications include: The methods applicable to porous cast parts can be used for low-porosity P/M...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005687
EISBN: 978-1-62708-198-6
...—accessories; vascular clamps; catheters; balloons; vascular strippers; vascular embolization devices; filters; clips; heart valves; stents; grafts Precious metals Platinum ASTM B561 Grade 99.95, Grade 99.99, UNS P04995 Pt Ears Catheters—accessories; pacemakers; vascular clamps; catheters...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005928
EISBN: 978-1-62708-166-5
... Abstract The atmosphere within a furnace chamber is a basic factor in achieving the desired chemical reactions with metals during heat treating. This article presents the fundamentals of heat treating atmospheres, and describes two groups of atmosphere control, namely, furnace atmosphere...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003088
EISBN: 978-1-62708-199-3
..., are found in this system. These pertain to the platinum-base catalyst and the ceramic carrier that supports the catalyst. The majority of the tubes and containers that comprise the exhaust system were for years made of readily formed and welded low-carbon steel, with suitable coatings for corrosion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
... a function of temperature and time, and it utilizes an extremely sensitive electronic microbalance. Typically, a polymer sample is examined from room temperature to above its decomposition or pyrolysis temperature in nitrogen (thermal stability). Often, a platinum pan or quartz boat is used for high...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001259
EISBN: 978-1-62708-170-2
... Lead-5% antimony Amorphous deposits, gray, slightly bright deposits; 6% current efficiency 21 Chromium-iron 167 g/L Cr 2 (SO 4 ) 3 ; 40 g/L Fe(NH 4 )(SO 4 ) 2 ; 80 g/L (NH 4 ) 2 SO 4 ; 10 g/L NaH 2 PO 2 ; 20 g/L K 2 SO 4 1–2 30 85 20–90 200–900 Platinum Nafion membrane used lowered...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003837
EISBN: 978-1-62708-183-2
... nickel aluminide coatings were extensively reported ( Ref 32 , Ref 33 , Ref 34 ). Whether used as an environmental coating ( Ref 35 ) or as a bond coat for thermal barriers ( Ref 36 , 37 ), platinum aluminides offer a higher level of protection than that afforded by standard aluminide coatings. This...