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iridium oxide coatings

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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
... information on gold coatings and iridium oxide coatings for stents. biomedical applications dentistry direct gold dental filling materials direct silver dental filling materials gallium alloys gold gold coatings high-copper amalgam alloys iridium iridium oxide coatings mechanical properties...
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
... Abstract This article characterizes the corrosion resistance of precious metals, namely, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold. It provides a discussion on the general fabricability; atomic, structural, physical, and mechanical properties; oxidation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003150
EISBN: 978-1-62708-199-3
.... Iridium Does not tarnish at room temperature, but heating in air at temperatures above 600 °C (1110 °F) will produce a thin oxide tarnish. At temperatures above 1000 °C (1830 °F), a volatile oxide forms. Platinum Resistant to oxidation at all temperatures up to its melting point of 1769 °C (3216 °F...
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
... of uses, ranging from electrical conductors and contacts to components for chemical equipment. Silver is also used in various chemical processes, including catalytic applications such as the production of formaldehyde or the oxidation of ethylene. Silver coatings are applied to glass and ceramics...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
... ). Coating technology for carbon-carbon has been driven primarily by the aerospace and defense industries, in applications where the composite is exposed to high-temperature oxidizing environments. Advanced applications include hot-section components for limited-life missile engines, exhaust components...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003716
EISBN: 978-1-62708-182-5
.... In most cases, corrosion resistance at high temperatures does not accompany the good mechanical properties of structural materials; therefore, protective coatings must be applied. Electrochemical principles are insufficient to understand the mechanism of oxidation. For gaseous reactions, a basic...
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
... 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 from PGMs are insoluble (inert) in most...
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
... alloy/20 alloy is not good when compared with that of the standard type K couple. 19 alloy/20 alloy thermocouples should not be used in oxidizing atmospheres above 650 °C (1200 °F). Iridium-Rhodium Three iridium-rhodium thermocouples are commercially available: 60Ir-40Rh/Ir (the most widely used...
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
... are efforts to reduce the thickness of the natural oxide on TZM. Iridium coatings about 12 μm (475 μin.) thick, plated in a fused cyanide bath, over chromium on nickel over gold strike-coated molybdenum, offered oxidation protection for about 1 2 h in air at 1000 °C (1830 °F). A typical...
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
... windshields, and microelectronic components. Silver anodes of various shapes are used in the electroplating industry. In the chemical industry, silver is used as a catalyst for the dehydrogenation of methanol to make formaldehyde, and in the oxidation of ethylene to ethylene oxide. Silver may also be used...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003814
EISBN: 978-1-62708-183-2
... to corrosive environments from passive oxide films, which heal rapidly in air if scratched. Decorative chromium coatings are generally less than 1.2 μm (0.05 mil) thick, while coatings thicker than this are used to resist both corrosion and wear. In this Section, the reader learns of the preplating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... was achieved, significant problems associated with volatile oxide formation, adherence, and the high CTE of iridium limited the usefulness of this technology. More recently, radio-frequency magnetron sputtering has been used to apply uniform iridium coatings that are maintained during high-temperature heat...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003776
EISBN: 978-1-62708-177-1
... micrographs, comparing and contrasting the microstructural features of gold, platinum, iridium, palladium, and ruthenium-base alloys. It examines pure gold, intermetallic gold compounds, gold and platinum jewelry alloys, platinum-containing shape memory alloys, and alloys consisting of platinum, aluminum...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
... Abstract The refractory metals include niobium, tantalum, molybdenum, tungsten, and rhenium. They are readily degraded by oxidizing environments at moderately low temperatures. Protective coating systems have been developed, mostly for niobium alloys, to permit their use in high-temperature...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001098
EISBN: 978-1-62708-162-7
... oxidation resistance at elevated temperatures, is the United States thermometric reference standard. This standard can be obtained from the National Institute of Standards and Technology (formerly NBS). The change in emf with temperature for two electrical conductors A and B, which are, respectively...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003422
EISBN: 978-1-62708-195-5
... attractive alternative. Protective Coatings Coating technology for carbon-carbon has been driven primarily by the aerospace and defense industries, in applications where the composite is exposed to high-temperature oxidizing environments. Advanced applications include hot-section components...
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
... providing a circuit of low resistance. In some applications, such as knife switches, plugs, and bolted connectors, contact surfaces are protected with grease or coatings of silver, nickel, or tin. In power circuits, where oxidation of copper is troublesome, contacts frequently are coated with silver. Vacuum...
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
... reported to have better mechanical properties than platinum aluminides and yet still offer a comparable level of corrosion resistance ( Ref 42 ), whereas the addition of rhodium is thought to increase both coating stability and oxidation resistance ( Ref 43 ). However, the performance of iridium-modified...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003449
EISBN: 978-1-62708-195-5
... to the fibers during processing. However, both carbon and boron nitride are susceptible to environmental degradation at elevated temperatures. As a result, a variety of alternative multilayer and oxide-base coatings are in the design/feasibility stage. Mechanical and Physical Properties In CFCCs...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001283
EISBN: 978-1-62708-170-2
... and a metal in solution with another metal. A common reaction involves coating iron objects (such as turbine blades) with chromium, using chromium powder and ammonium iodide as reactants and aluminum oxide as an inert filler. Parts and chemicals are loaded in a molybdenum container that is then sealed...