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electrical insulation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780164
EISBN: 978-1-62708-281-5
..., including flexible and rigid types; flexible vinyls, especially polyvinyl chloride, widely used for wire insulation and jacketing Blow moldings, extrusions, injection moldings, rotational moldings, film sheet Source: Ref 2 Electrical properties of thermoplastic materials Table 12 Electrical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550511
EISBN: 978-1-62708-307-2
...Abstract Abstract Ceramics normally have high melting temperatures, excellent chemical stability and, due to the absence of conduction electrons, tend to be good electrical and thermal insulators. They are also inherently hard and brittle, and when loaded in tension, have almost no tolerance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110219
EISBN: 978-1-62708-247-1
... for the localization of resistive electrical shorts in 3D architectures, and the third operates in cross sectional LIT mode to investigate defects in the insulation liner of Through Silicon Vias. All three approaches allow for a precise localization of thermally active defects in all three spatial dimensions to guide...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... unique product benefits. These are usually physical properties, or combinations of physical properties, that allow vastly improved product performance, such as: Electrical insulation . Most combinations of plastic resin and filler are natural electrical insulators. Thermal insulation . All...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550001
EISBN: 978-1-62708-307-2
... share. The first plastic based on a synthetic polymer was phenolic, made from phenol and formaldehyde. In 1907, Leo Baekeland was trying to develop an insulating shellac to coat wires in electric motors and generators. He found that mixtures of phenol and formaldehyde formed a sticky mass when mixed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780153
EISBN: 978-1-62708-281-5
... be discoloration, loss of mechanical strength, embrittlement, and loss of electrical insulation and resistance properties. The degree to which a particular material degrades depends on its susceptibility to each of the above factors. Outdoor degradation factors affect some materials more than others because...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
... so that the wires do not make electrical contact anywhere except at the weld bead. Figure A4 shows a homemade thermocouple where the wires are threaded through a two-hole ceramic insulator. For lower-temperature measurements, one can get by using fiberglass-insulated thermocouple wires...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000131
EISBN: 978-1-62708-312-6
... insulation. The goal is to achieve good electrical insulation with a minimum amount of polymer, as well as to obtain a high density. Spherical or near-spherical powder particles are preferred to irregular-shaped particles, because they better withstand compaction to a high density without breakdown...
Book Chapter

By Kenneth A. Walsh
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230001
EISBN: 978-1-62708-298-3
..., block, billet, rod, bar, tube, foil, sheet, plate, wire, and other specialty shapes. Beryllia is an excellent heat conductor as well as an electrical insulator. The material has high hardness and strength. Its specific heat of 1088 J/kg · °C at room temperature is the highest of any ceramic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... in insulating electrical conductors using polyemide film or tape. The high-temperature resistance of the polyemide film, which is applied in the form of high-integrity tape heat sealed to the conductor, permits thinner insulation than was previously possible. In this case, because the material will not bond...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... steel, resulting in rapid corrosion of the new steel unless the new section is electrically insulated from the old section and (or) cathodically protected. A similar corrosive condition can occur if, during work on an existing piping system, tools cut or scrape the pipe and expose areas of bright steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220185
EISBN: 978-1-62708-341-6
... Circular (a) and slotted (b) concentrator coils; arrows indicate direction of current flow. From E. May, Industrial High Frequency Electric Power , Wiley, New York, 1950 ( Ref 4 ) Fig. 8.37 Concentrator coil for melting the end of a superalloy bar used in production of metal powder in a vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780003
EISBN: 978-1-62708-281-5
... Medium, but often decreases rapidly with temperature Very low Thermal shock resistance Good Generally poor … Electrical characteristics Conductors Insulators Insulators Chemical resistance Low to medium Excellent Good Oxidation resistance Generally poor Oxides excellent; SiC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
... ceramics are all crystalline. Due to the absence of conduction electrons, ceramics are usually good electrical and thermal insulators. In addition, due to the stability of their strong bonds, they normally have high melting temperatures and excellent chemical stability in many hostile environments. However...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780159
EISBN: 978-1-62708-281-5
... ( Ref 2 ). ASTM D 876, “Methods of Testing Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation,” and ASTM D 2633, “Method of Testing Thermoplastic Insulations and Jackets for Wire and Cable,” are specifically for plastics used in power or signal-carrying wires strung in air ducts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030023
EISBN: 978-1-62708-282-2
...-current corrosion. (b) Improved design. Installation of a second anode and an insulated buss connection provided protection for both tank and pipeline, preventing stray currents. In another example, an on-board electric welding machine can create stray currents in a ship and can cause accelerated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820203
EISBN: 978-1-62708-339-3
... and has a particular anode/cathode area ratio. Thus, no crevice-corrosion test is universally applicable. The two most widely used crevice geometries in field coupon testing employ insulating spacers to separate and electrically insulate the coupons. Spacers are usually either flat washers or multiple...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030169
EISBN: 978-1-62708-282-2
..., self-healing, and an electrical insulator. While being protected from uniform corrosion, the most common form of corrosion found on aluminum alloys is localized pitting. This form of corrosion occurs when a corrosive species such as chloride ions compromises the integrity of the oxide film at local...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730037
EISBN: 978-1-62708-283-9
... increased temperature and impurities lower the conductivity of metals, they have the opposite effect in insulators and semiconductors. In ionic solids, current is carried by the movement of ions under the influence of an electric field, just as it can be in liquid solutions. The difference...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
... a highly oxidized or phosphated surface which acts as insulation between the layers, thereby electrically isolating each for maximum efficiency. At RF frequencies, powder metallurgy (PM) materials and ceramics are generally used because the particle size of the permeable material must be very small–i.e...