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combustion and inert gas fusion analysis

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
... covers the operating principles, applications, advantages, and disadvantages of optical emission spectroscopy (OES), inductively coupled plasma optical emission spectroscopy (ICP-OES), X-ray spectroscopy, and ion chromatography (IC). In addition, information on combustion analysis and inert gas fusion...
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
... emission spectroscopy, high-temperature combustion, and inert gas fusion. This is followed by a section on techniques for determining the atomic structure of crystals, namely X-ray diffraction, neutron diffraction, and electron diffraction. Types of electron microscopies most commonly used...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003250
EISBN: 978-1-62708-199-3
... Abstract The overall chemical composition of metals and alloys is most commonly determined by X-ray fluorescence (XRF) and optical emission spectroscopy (OES), and combustion and inert gas fusion analysis. This article provides information on the capabilities, uses, detection threshold...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001115
EISBN: 978-1-62708-162-7
... in the articles “High-Temperature Combustion” and “Inert Gas Fusion” in Materials Characterization, Volume 10 of ASM Handbook, formerly 9th Edition Metals Handbook. Impurity concentrations in two titanium samples and a chromium sample characterized using glow discharge mass spectroscopy (GDMS) method...
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
... feeder using a carrier gas. Fig. 5 Powder flame spray system In flame spray processes, the oxyfuel ratio and total gas flow are adjusted to produce the desired thermal output. Optional air jets, downstream of the combustion zone, may further adjust the thermal and velocity profile...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006960
EISBN: 978-1-62708-439-0
.... Finally, the facility itself must be considered part of those risk hazards. The facility carries risk with the environment within that facility. This environment includes environmental conditions such as humidity and temperature. Other factors found in a facility are electrical and inert gas safety...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001726
EISBN: 978-1-62708-178-8
... combustion, inert gas fusion, or vacuum fusion analysis (all having “G”s in the appropriate columns) would have to be employed for carbon determination. The summaries in the articles “Optical Emission Spectroscopy” and “Spark Source Mass Spectrometry,” however, indicate that these methods can analyze...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007021
EISBN: 978-1-62708-439-0
.... For electron beam powder-bed fusion, the common size range is 45 to 106 μm. Fig. 7 Particle size distribution from typical vacuum inert gas atomized production, showing the relative ranges typically used in different additive manufacturing modalities: binder jet, laser powder-bed fusion (L-PBF...
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
...; with the alkali metals, the reaction is vigorous enough to be potentially hazardous, particularly with potassium, rubidium, and cesium. Use of inert gas covers and the exclusion of moisture are the best defenses. Even with the nonalkali metals, where the reactions with water are slow, water, such as that found...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006126
EISBN: 978-1-62708-175-7
..., on the element to be detected. For carbon, sulfur, nitrogen, and oxygen detection, bulk chemical analysis can be obtained using high-temperature combustion and inert gas fusion. Provided great care is taken in sample preparation, resolution in the ppm range can be achieved. Because of the small scale...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
..., and biomedical. Some specific examples are given in the section “Uses of Thermal Spray Coatings” in this article. Processes Flame Spray Flame spray uses combustible gas as a heat source to melt the coating material ( Fig. 3 ). Flame spray guns are available to spray materials in either rod, wire...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001739
EISBN: 978-1-62708-178-8
.... The reaction vessel for sinters and fusions is usually a crucible. Its material composition must be critically matched to the salt medium and the desired analyte. Muffle furnaces or gas burners generally provide the heat source. Sintering procedures specify an optimum temperature, which should not be exceeded...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006056
EISBN: 978-1-62708-175-7
... and subsequent detection/quantification through infrared absorption. Nondispersive infrared detectors are used to analyze oxygen and hydrogen concentrations after inert gas fusion. Nitrogen is analyzed in the same combusted stream using a thermal conductivity detector. Microstructural Evaluation...
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
.... Phosphate-bonded coatings are used primarily to prevent deterioration of the substrate metal during high-temperature service. Applications include combustion-chamber linings, re-entry leading edges, hot gas ducts, and high-temperature insulation repairs. Cermets Table 9 lists the constituents...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006629
EISBN: 978-1-62708-213-6
... of the position of equilibrium is important in all of the analysis discussed herein, with the magnitude of K controlling everything from the strength of an acid solution to the ability of a molecule to bind a metal cation. The equilibrium constant can also be assessed for gas-phase reactions. In gas-phase...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005795
EISBN: 978-1-62708-165-8
.... The thermal conductivity of the gas stream is measured in a test cell and compared to a standard, whereby the amount of carbon dioxide can be determined. For nitrogen, the inert gas fusion method is used. By heating the sample in helium at high temperature (≥1900 °C, or 3450 °F), molecular nitrogen (N 2...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... commonly used purge gas, but helium, argon, air, and oxygen can also be used for specific purposes. Often, two consecutive heating runs are performed to evaluate a sample. A controlled cooling run is performed after the initial analysis to erase the heat history of the sample. The first heating run...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001778
EISBN: 978-1-62708-178-8
... that it will cause corrosion in adjacent electrical components. The presence of sulfate is cause for more concern because the balloons are formed by blowing sulfur dioxide gas through the molten glass, and the gas may become entrained inside them and escape by diffusion or when the thin cell walls are broken...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006090
EISBN: 978-1-62708-175-7
... to a centralized facility for reduction. Automobile air bag inflators use sodium azide and iron oxide powder as the propellant. It is important in this application that the gas produced be inert because it is exhausted into the interior of a vehicle during use. The reaction is: 2 NaN 3 + 0.33 Fe 2...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006649
EISBN: 978-1-62708-213-6
.... Other dry analysis methods, such as high-temperature combustion in inert gas fusion, can be used to analyze the carbon, sulfur, oxygen, and nitrogen content of a powder. In wet analysis, atomic absorption, inductively coupled plasma, and ion-coupled plasma mass spectrometry are three common...