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microwave heating

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001274
EISBN: 978-1-62708-215-0
... that silica (SiO 2 ) was the only inorganic constituent. Silica is a common ingredient in paper products used as containers. Simulation Tests Three different microwave ovens were used to compare the effects of heating on the six laminated-paper trays. The intent was to ensure the representation...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
..., connectors) Temperature resistance (cookware, electrical components) Molecular structure (microwave cookware, coaxial cable) Chemical and water resistance (food contact parts, storage tanks, fuel containers, piping, boat hulls) Nontoxicity (food contact parts, living areas) Impact resistance...
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
... digestion for the range of ferrous and nonferrous materials typically encountered. The use of microwave-assisted acid digestion usually improves the efficacy and rate of the digestion process. Digestion vessels must be compatible with the acid mixtures. The ICP-OES spray chambers, nebulizers, and injectors...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... in polymers also decreases their ability to conduct heat. The increase in free volume from branching lowers the efficiency of thermal conduction due to a more tortuous path for heat conduction along primary valence bonds. Polyethylene (PE) is a good example of how branching influences properties...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
.... The dissipation factor, tan δ, which is given by: (Eq 5) tan δ = ε ″ ε ′ is a measure of the internal heating of plastics. Thus, little heating should occur in nonpolar or rigid materials (tan δ < 10 –3 ), whereas high-frequency (radio-frequency or microwave) welding necessitates that tan δ...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... temperatures are imaged by point sensors, IR cameras, or coatings that change appearance with temperature. Analysis is based on absolute and change of temperature following a stimulus. Locating near-surface discontinuities that alter heat transfer through object Requires precise control of environment, heat...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006913
EISBN: 978-1-62708-395-9
... and separate electrical network components from each other and from the ground, and as a capacitor dielectric component. It is usually desirable for the capacitance of the insulating material to be as minimal as possible, compatible with appropriate mechanical, chemical, and heat-resistant properties...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
... for the laser systems and associated safety features as well as the high-end computer processing requirements. Fig. 18 Laser ultrasonic system Laser ultrasonic systems generate mechanical waves in a part by heating a point on the surface with a high-powered laser (typically carbon dioxide...