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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
.... In this classification, wear study is separated as elastomers, thermosets, glassy thermoplastics, and semicrystalline thermoplastics. The article describes the effects of environment and lubricant on the wear failures of polymers. It presents a case study on nylon as a tribological material. The article explains...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001767
EISBN: 978-1-62708-241-9
.... As the cracks grew larger, the weight of the transformer eventually overloaded the brackets, resulting in failure. mounting brackets fracture polymer degradation ABS plastic cracking FTIR TGA Acrylonitrile-butadiene-styrene (thermoplastic) Introduction It was reported that six transformer...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090445
EISBN: 978-1-62708-222-8
... to the ABS resin from the spectrum obtained on the failed part. The spectral subtraction results were consistent with a thermoplastic polyester, such as PET or PBT. However, these two materials cannot be distinguished spectrally, because of similarities in their structures. As such, the melting point...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090442
EISBN: 978-1-62708-218-1
... of parts contained absorption bands characteristic of a thermoplastic polyester, such as PBT or poly(ethylene terephthalate) (PET). Different types of polyester resins cannot be distinguished spectrally, because of the similar nature of their structures. However, subtle but distinct differences were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
... of the jacket material. The resulting spectrum was consistent with a thermoplastic polyester resin. Such materials, including PET and PBT, cannot be distinguished spectrally, and a melting point determination is usually used to distinguish these materials. The failed jacket material and reference molding resin...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... that the body section be made from an unfilled polysulfone resin. Polysulfone is a transparent amorphous engineering thermoplastic, which, by comparison with other resins, is generally considered to be a ductile and tough material. Like many other plastics, however, it is somewhat notch sensitive. As a class...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... aluminum etched with aqueous 0.5% hydrofluoric acid Fig. 11 Light micrographs of specimens of 1215 carbon steel that were salt bath nitrided and mounted in different resins. (a) Epomet thermosetting epoxy resin. (b) Phenolic thermosetting resin. (c) Methyl methacrylate thermoplastic resin. (d...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... (such as phenolics, epoxy, etc.) may have low wear rates and higher strength than those with thermoplastics because a higher ratio of fiber is achievable with a thermoset matrix. Incorporation of fillers also can modify wear resistance of polymers up to the order of four. Solid lubricants mostly reduce wear...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
.... In general, simple polymers (with little or no side branching) crystallize very easily. Crystallization is inhibited in heavily cross-linked (thermoset) polymers and in polymers containing bulky side groups. There are three categories of polymers: thermoplastics, thermosetting plastics, and elastomers...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
.... Specimen etched with nital Fig. 3 Light micrographs of specimens of 1215 carbon steel that were salt bath nitrided and mounted in different resins. (a) Thermosetting epoxy resin. (b) Phenolic thermosetting resin. (c) Methyl methacrylate thermoplastic resin. (d) Electroless nickel plated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... will be made from metal, plastic, ceramic, or composite. Level II: Determine whether metal parts will be produced by a deformation process (wrought) or a casting process; for plastics, determine whether they will be thermoplastic or thermosetting polymers. Level III: Narrow options to a broad...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... Differential scanning calorimetry used to detect glass transitions within amorphous thermoplastic resins. The (I) indicates that the numerical temperature was determined as the inflection point on the curve. Fig. 8 Thermogravimetric analysis thermogram showing the weight-loss profile for a typical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... and polymeric materials are tabulated in many references ( Ref 2 , 3 ). When linear or branched thermoplastic polymers are exposed to large enough quantities of solvents having solubility parameters within approximately ±2 H of that of the polymer, dissolution of the polymer will occur. In smaller quantities...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... Crystalline domains with rigid chains between them and cross-linking chains High-strength and temperature-resistant materials E Rigid-chain domains in a flexible-chain matrix Styrene-butadiene-styrene, triblock polymer Thermoplastic elastomer (a) See Fig. 23 . (b) PE, polyethylene; PP...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... as the transition temperature between the glassy, or brittle, and relatively flexible phases of a polymer. This temperature, in turn, depends on the average molecular weight of a thermoplastic polymer or the degree of crosslinking for a thermoset polymer. Polymers used above their T g can readily creep under...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0090436
EISBN: 978-1-62708-233-4
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090448
EISBN: 978-1-62708-222-8
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090430
EISBN: 978-1-62708-222-8