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inert carriers

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Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001747
EISBN: 978-1-62708-178-8
... and later removed and swept by from the fusion area by an inert carrier gas. This article describes the operating principles and sample selection of inert gas fusion. It explains the mechanisms involved in the introduction of fusion gas, separation and detection of fusion gas by thermal-conductive...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003635
EISBN: 978-1-62708-182-5
... size, temperature and strain rate, stress, inert carriers, and fatigue, on LMIE. It provides a detailed discussion on LMIE in ferrous and nonferrous metals and their alloys. In addition, the article highlights the ways of preventing embrittlement in metals and alloys. liquid metal induced...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001317
EISBN: 978-1-62708-170-2
... catalytic materials such as palladium, platinum, cobalt, chromium oxide, and vanadium pentoxide are deposited using the methods described above. At one time, it was thought that catalyst carriers only served to provide inert high surface areas with suitable strength and durability, on which catalytic...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006678
EISBN: 978-1-62708-213-6
... conductivity correspond to a change in the gas (e.g., from the inert carrier gas to hydrogen) and the amount of evolved gas present. These changes correspond to the amount of CO 2 and SO 2 generated and indicate the amount of sulfur or carbon in the original specimen. Inert Gas Fusion...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003610
EISBN: 978-1-62708-182-5
... in an inert carrier gas, followed by water rinsing. Evaporation has also been successfully used and could be considered where hydrogen generation is not permitted. Ammonia- based systems have also been used for refractory metal pipework where hydrogen generation was prohibited. References 13 , 14 , and 15...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005718
EISBN: 978-1-62708-171-9
..., showing drive components. (b) Gun. Courtesy of Thermach, Inc. Fig. 16 Electric-arc-sprayed steel coating using smaller-diameter wires. Courtesy of Praxair TAFA (formerly Miller Thermal) Fig. 17 Titanium sprayed in inert chambers. (a) Unetched. (b) Etched Fig. 18 Enthalpy...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006661
EISBN: 978-1-62708-213-6
... the gas into an inert carrier gas (such as argon) and introducing the mixture into the reactor through a leak valve. To accurately calculate the surface coverage (for example, in Langmuir) during the adsorption process, the measurement of the pressure rise in the system must be exact. Calibration...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003218
EISBN: 978-1-62708-199-3
... surface by a chemical reaction from the vapor or gas phase. In general, three processing steps are involved in any CVD reaction: (1) the production of a volatile carrier compound, (2) the transport of the gas to the deposition site without decomposition, and (3) the chemical reaction necessary to produce...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006048
EISBN: 978-1-62708-172-6
... is an excellent method for filling the annulus, the space between the casing and the carrier pipe. This cutaway diagram shows the melted wax in the process of being pumped through the bottom vent. The wax will eventually fill the top vent. If the preexisting water has been removed, filling the casing is usually...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003218
EISBN: 978-1-62708-199-3
... of a solid on a heated surface by a chemical reaction from the vapor or gas phase. In general, three processing steps are involved in any CVD reaction: (1) the production of a volatile carrier compound, (2) the transport of the gas to the deposition site without decomposition, and (3) the chemical reaction...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005199
EISBN: 978-1-62708-187-0
... 0.25 Inert gas rate, m 3 /min (ft 3 /min) 0.03 0.05–0.25 0.05–0.10 0.1–0.2 0.3–0.6 0.4–0.7 (ft 3 /min) (1.0) (1.75–9.0) (1.75–3.5) (3.5–7.0) (11–21) (14–25) Ar/O 2 ratio, % 0.5 0.3–5.0 0.5–2.0 0.7–4.0 2.0–6.0 2.5–7.0 Ladle freeboard, m (ft) 0.8–1.0 1.0–1.2 1.2–1.5 1.5...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006659
EISBN: 978-1-62708-213-6
... the peak height and the retention time for a given molecule. A good column has a large N ( Ref 3 ). The purpose of the carrier gas (mobile phase) is to carry the sample from the inlet, through the tubing, column, and, ultimately, to the detector. The carrier gas must be inert, meaning that it should...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005900
EISBN: 978-1-62708-167-2
... and to create special metallurgical reactions between the metal and the specially composed slag. Today closed ESR furnaces are used, which can be evacuated and afterward have an inert gas atmosphere introduced. Today various numbers of special metals are melted and cast using vacuum metallurgy technologies...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... is separated from the gun and connected by means of a hose through which powder and carrier gas flow. The carrier gas may be compressed air, fuel gas, or inert gas. Hydrogen is commonly used as both carrier and fuel gas. Control of particle size is important in both gravity-feed and pressure-feed systems...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005300
EISBN: 978-1-62708-187-0
... such as argon or nitrogen through an injection device. While chlorine has often been added to an inert gas in historical practice, today (2008), virtually all flux injection uses just an inert gas as the flux carrier. The purpose of flux injection is threefold in most foundry applications: hydrogen removal...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005799
EISBN: 978-1-62708-165-8
... to sustain a carburizing atmosphere that proceeds in the forward direction. ( Ref 3 ). Gas carburizing atmospheres are often generated by enriching an endothermic carrier gas with methane. The carburizing potential of endothermic gas without hydrocarbon enrichment is not sufficient to produce significant...
Book Chapter

By Paul T. Vianco
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001401
EISBN: 978-1-62708-173-3
....) are readily attached by wave soldering; larger packages (e.g., leaded or leadless chip carriers) may be damaged by exposure to the harsh environments (flux and molten solder) as well as be more prone to solder defects ( Ref 1 ). The wave soldering technique encompasses a sequence of processes, all...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005775
EISBN: 978-1-62708-165-8
...., a powder of the element or elements to be deposited on the surface of the part), a halide salt activator, and a relatively inert filler powder. The master alloy, the filler, and the halide activator are thoroughly mixed together, and the part to be coated is buried in this mixture in a retort. When...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005622
EISBN: 978-1-62708-174-0
... Welding Institute and GE Fig. 8 Two-sided weld in a steel turbine barrel (prior to machining operation). Courtesy of the Edison Welding Institute Abstract Abstract Penetration-enhanced gas tungsten arc welding (GTAW) processes have been referred to variously as flux tungsten inert gas...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005983
EISBN: 978-1-62708-166-5
... or lean gas atmosphere, depending on individual applicatons. (c) Rich gas atmosphere. (d) (+40°F) (4.4°C) Dewpoint gas atmosphere. (e) Lean gas atmosphere. (f) Medium rich gas atmosphere. (g) Exothermic gas atmosphere may be used as a carrier. Source: Ref 1 Molecular nitrogen...