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Chemical reactors

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Published: 01 January 1994
Fig. 5 Different gas flow patterns possible in chemical vapor deposition reactors. (a) Boundary layer of a gas flowing in a pipe and velocity distribution. (b) Stream lines showing adhered flow and break-away flow. (c) Flow patterns effected by expansion angle of tubes. (d) Effect of Reynolds More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001492
EISBN: 978-1-62708-173-3
.... It discusses the application of brazed and soldered joints in sophisticated mechanical assemblies, such as aerospace equipment, chemical reactors, electronic packaging, nuclear applications, and heat exchangers. The article also provides a detailed discussion on the joining process characteristics of different...
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Published: 01 December 2009
Fig. 10 Structure of a chemical vapor deposition (CVD) reactor simulation. PDE, partial differential equation More
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Published: 01 January 1994
Fig. 1 Typical reactor design for metal-organic chemical vapor deposition. Source: Ref 7 More
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Published: 01 January 1994
Fig. 3 Schematic of a remote plasma-enhanced chemical vapor deposition reactor for depositing compound semiconductor films. TMG, trimethylgallium. Source: Ref 23 More
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Published: 01 January 1994
Fig. 5 Reactor for plasma-enhanced chemical vapor deposition of epitaxial silicon films. QMS, quadruple mass spectrometer. Source: Ref 48 More
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006035
EISBN: 978-1-62708-172-6
... would trigger the activation of containment sprays discharging chemical solutions containing sodium borate, sodium thiosulfate, hydrazine, sodium hydroxide, or boric acid. These chemicals are designed to absorb neutrons and reduce fission activity within the reactor. The exact chemicals are plant...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001285
EISBN: 978-1-62708-170-2
... Abstract This article discusses the application of amorphous and crystalline films through plasma-enhanced chemical vapor deposition (PECVD) from the view point of microelectronic device fabrication. It describes the various types of PECVD reactors and deposition techniques. Plasma enhancement...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004148
EISBN: 978-1-62708-184-9
... this transition temperature, usually at 850 K. The best corrosion resistance is obtained for a microstructure close to the chemical equilibrium. This is indeed obtained with such a thermal history. In addition, during operation in reactors, the irradiation-enhanced diffusion processes allow a further evolution...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003115
EISBN: 978-1-62708-199-3
... Abstract Stainless steels are iron-base alloys containing minimum of approximately 11% Cr, and owing to its excellent corrosion resistance, are used for wide range of applications. These applications include nuclear reactor vessels, heat exchangers, oil industry tubular, chemical processing...
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
... Abstract This article presents the principles of chemical vapor deposition (CVD) with illustrations. It discusses the types of CVD processes, namely, thermal CVD, plasma CVD, laser CVD, closed-reactor CVD, chemical vapor infiltration, and metal-organic CVD. The article reviews the CVD reactions...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004144
EISBN: 978-1-62708-184-9
... to practical applications. The industries addressed are nuclear power, fossil and alternative fuel, land transportation, air transportation, microelectronics, chemical processing, pulp and paper, food and beverage, pharmaceutical and medical technology, petroleum and petrochemical, building, and mining...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004132
EISBN: 978-1-62708-184-9
... a synergistic approach incorporating feed chemistry control, reactor design modifications, and intelligent materials selection, for mitigating degradation of SCWO systems. corrosion degradation supercritical water oxidation wastewater sludge THE PRACTICALITY of supercritical water oxidation (SCWO...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001441
EISBN: 978-1-62708-173-3
... alloys, as specified in ASTM B 550, are given in Table 1 . For reactor grades, the hafnium content is reduced to a minimum and other impurities are closely controlled. Chemical compositions of the most common grades of nuclear-grade Zircaloys, as specified in ASTM B 351, are given in Table 2...
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Published: 01 December 2009
Fig. 13 Transverse velocities at three axial positions, illustrating the formation of convection rolls inside an adiabatic-wall horizontal metal-organic chemical vapor deposition reactor. Source: Ref 124 More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005711
EISBN: 978-1-62708-171-9
... (very low-neutron-absorption material) plasma-sprayed coatings applied to high-neutron-flux test reactor fuel to prevent chemical reactions between the uranium fuel and the aluminum cladding is shown in Fig. 1 . Coatings containing neutron absorbers such as boron in the form of B 4 C or gadolinium...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003149
EISBN: 978-1-62708-199-3
.... These properties, combined with its good mechanical properties, make zirconium very useful in nuclear power applications, especially as cladding for uranium fuel and for other reactor internals. Today, a high proportion of zirconium is used in water-cooled nuclear reactors; the next largest used is in chemical...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003120
EISBN: 978-1-62708-199-3
... Abstract Superalloys are nickel, iron-nickel, and cobalt-base alloys generally used for high-temperature applications. Superalloys are used in aircraft, industrial, marine gas turbines, nuclear reactors, spacecraft structures, petrochemical production, orthopedic and dental prostheses...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001284
EISBN: 978-1-62708-170-2
..., and IV semiconductors. chemical vapor deposition epitaxial deposition group III-V semiconductors group II-VI semiconductors group IV semiconductors kinetics metal-organic chemical vapor deposition metal-organic chemical vapor deposition reactor systems semiconductor films thermodynamics...
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
... Abstract The chemical process being catalyzed should have a high productivity within a specified reactor volume with high reaction rates for the desired reactions and low rates for undesired reaction pathways. This article reviews the general catalyst preparation procedures, namely...