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microwave technique

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003235
EISBN: 978-1-62708-199-3
... the subsurface crack. Techniques of Microwave Inspection The following general approaches have been used in the development of microwave nondestructive inspection: Fixed-frequency, continuous-wave transmission Swept-frequency, continuous-wave transmission Pulse-modulated transmission Fixed...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003658
EISBN: 978-1-62708-182-5
... Abstract Microwave and guided wave (GW) nondestructive evaluation (NDE) techniques are capable of detecting corrosion damage, cracks, and other defect types in inaccessible areas. This article describes the operation principles of the techniques and provides information on hidden corrosion...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006475
EISBN: 978-1-62708-190-0
... the microwave beam is directed perpendicularly into the surface. To detect a perpendicular planar discontinuity, such as an internal crack or seam, the microwave beam can be introduced into the material at an oblique angle, similar to ultrasonic shear-wave inspection of welds. When oblique incidence techniques...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001750
EISBN: 978-1-62708-178-8
... technique. The modulation coils are usually mounted on the sides of the microwave-resonant cavity. Modulation A modulation frequency, f m , that is much less than the linewidth Δ H pp expressed in frequency units Δ f pp should be used: (Eq 4) f m ≪ Δ f pp = γ 2 π Δ...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001469
EISBN: 978-1-62708-173-3
... method. The techniques are hot-tool, hot-gas, extrusion, focused infrared, laser, friction, vibration, spin, ultrasonic, and electromagnetic welding techniques (resistance, induction, dielectric, and microwave welding). The article concludes with a discussion on welding evaluation methods...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006069
EISBN: 978-1-62708-175-7
... Abstract This article discusses two major sintering methods: pressureless and pressure-assisted sintering. Pressureless sintering techniques include vacuum and partial-pressure, hydrogen, and microwave sintering. Pressure-assisted consolidation techniques include overpressure sintering...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001113
EISBN: 978-1-62708-162-7
... describes the in-situ film growth techniques for producing atomic oxygen by radio frequency excitation or microwave discharge or with ozone. electron-beam co-evaporation high-critical-temperature materials in-situ film growth laser ablation low-critical-temperature materials sputtering thin-film...
Image
Published: 01 December 1998
Fig. 1 Diagram of the basic components of the transmission technique used for microwave inspection More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003021
EISBN: 978-1-62708-200-6
... Abstract This article discusses the classification of the attachment and joining methods in plastics, including mechanical fastening, adhesive bonding, solvent bonding, and welding. It describes the mechanical fastening techniques used to join both similar and dissimilar materials with machine...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003435
EISBN: 978-1-62708-195-5
... Abstract This article discusses the attempts made by the industry to create sensing approaches for modeling a process, part, and chemistry and kinetics. It reviews microwave curing of thick-section composites and the resin cure sensors that are used for resin cure monitoring. These include...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006045
EISBN: 978-1-62708-175-7
... °F/min) and a hold time of 30 min ( Fig. 15c ). To improve microwave heating efficiency during initial heating, lossy “susceptor” material consisting of a silicon carbide plate and zirconia fiberboard was added to the insulating casket, a technique called hybrid heating. This system provided better...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001751
EISBN: 978-1-62708-178-8
... from the fact that in materials having a conductivity of approximately 10 −2 to 1 μΩ · m, the microwaves penetrate only the first few microns of the sample surface. For routine measurements of magnetic parameters, FMR is one of the least demanding techniques. Because signals are usually large...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003638
EISBN: 978-1-62708-182-5
..., such as ultrasonic thickness measurements, work from the outside of the vessel. Emerging techniques, such as microwave and guided wave ultrasonic methods can be configured to detect corrosion under coatings or to measure the moisture content of the interior of structures. Infrared imaging is typically used to detect...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003056
EISBN: 978-1-62708-200-6
..., adhesive joining, and chemical bonding. Mechanical and adhesive joining of ceramics have useful application in low-temperature, low-stress environments. However, due to the frequent performance limitations encountered with these joining techniques, chemical bonding processes have been developed for more...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003653
EISBN: 978-1-62708-182-5
... microwave, ultrasonic, and acoustic techniques are finding much greater applications for monitoring hidden corrosion and cracks. For instance, a microwave corrosion detector (MCD) can scan and locate corrosion underneath paint using microwave sources and analyzing the reflected wave to determine...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001345
EISBN: 978-1-62708-173-3
... and laser brazing, microwave brazing, and braze welding. braze welding brazing dip brazing electron-beam brazing exothermic brazing filler-metal flow furnace brazing induction brazing infrared brazing laser brazing manual torch brazing microwave brazing resistance brazing surface...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005736
EISBN: 978-1-62708-171-9
..., planar microwave devices, waveguide devices, sensing devices, solid oxide fuel cells, heating elements, electrodes for capacitors and other electrochemical devices. capacitors dielectric breakdown heating elements photovoltaics resistors sensors solid oxide fuel cells thermal spray coating...
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: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006558
EISBN: 978-1-62708-290-7
... ) on structures printed with a wide range of additive manufacturing processes ( Ref 8 , 9 , 22 , 23 ). Furthermore, the group attempted to selectively cure the conductive inks to provide improved performance without damaging the substrate with excessive temperatures. Techniques included microwave heating...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001091
EISBN: 978-1-62708-162-7
.... This article discusses the uses of gallium in optoelectronic devices and integrated circuits and applications of gallium. The article discusses the properties and grades of gallium arsenide and also provides information on resources of gallium. The article talks about the recovery techniques, including...