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Published: 01 January 2002
Fig. 8 Specific wear rates for phenolic resin and its composites. The data are reported for various experimental conditions and pv (pressure × velocity) factors as reported in the literature. Specimen Sliding speed ( v ), m/s Normal pressure ( p ) Counterface roughness ( R a ), μm More
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Published: 01 January 2002
Fig. 13 Wear rate of PTFE and its composites under different experimental conditions. For specimens 1 to 4: sliding speed ( v ) = 0.2 m/s; normal pressure ( p ) = 0.05 MPa (0.007 ksi). Source: Ref 16 . For specimens 7 to 9: sliding speed ( v ) = 1.6 m/s; normal pressure ( p ) = 0.69 MPa (0.10 More
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Published: 01 January 2002
Fig. 2 Relative abrasive wear loss of polymethylmethacrylate (PMMA) and composites filled with quartz and glass against abrasives SiC (45 μm), WIB, SiO 2 (10 μm) and CaCO 3 (3 μm) as a function of filler volume fraction, V f . WIB, weak interfacial bond; SIB, strong interfacial bond: 1 More
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Published: 01 January 2002
Fig. 6 Scanning electron micrographs of abraded surfaces of composites against 80 grade SiC paper and under 14 N load. (a) Polyetherimide (PEI) + 10% glass fiber (GF) showing extensive damage to matrix and fiber; cavities left after fiber consumption. PEI + 30% GF. (b) Fiber on the stage More
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Published: 01 January 2002
Fig. 9 Scanning electron microscope micrographs of abraded PEI composites reinforced by various fabrics; L 12 N, SiC paper 80 grade (grit size 175 μm); distance slid 10 m (33 ft). O P , fabric parallel to the sliding plane; O N , fabric normal to the sliding plane. (a) PEI AF (O P ) showing More
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Published: 01 January 2002
Fig. 11 Influence of fillers on friction and wear behavior of PEEK composites; L , Normal load, 196 N; speed 0.445 m/s; counterface plain carbon steel ring. (a) nanometer-sized SiC in PEEK; (b), and (c) PTFE in PEEK and PEEK + SiC (3.3 vol% constant) composites. Source: Ref 40 More
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Published: 01 January 2002
Fig. 12 (a) Influence of PTFE on friction and wear performance of PEEK composites and the optimum range of PTFE amount for best combination of μ and K 0 . (b) Linear correlation and synergistic effect as a result of two opposite trends. K 0,M and K 0,L represent specific wear rates More
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Published: 01 January 2002
Fig. 15 Scanning electron micrographs of worn surfaces of PEI composites indicating (a) transfer of thin and coherent film of PTFE on the steel disc responsible for lowest μ exhibited by (PEI PTFE15% ). (b) Film transfer (less coherent and thin) in the case of (PEI GF25% + PTFE15% + (MoS 2 More
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Published: 01 January 2002
Fig. 16 Wear failure of PEI and composites (a) Failed surface of PEI while sliding against very smooth ( R a 0.06 μm) aluminum surface resulting in high μ (L 28 N; v 2.1 m/s) Left part shows severe melt flow of PEI; middle portion shows crater with chipped-off molten material ( Ref 46 ). (b More
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Published: 01 January 2002
Fig. 17 Specific wear rate and friction coefficient of unidirectional composites (see Table 4 ) in three orientations ( P , 1.5 N/mm 2 ; V , 0.83 m/s; distance slid, 16 km). More
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Published: 01 January 2002
Fig. 21 Specific wear rates of hybrid composites formulated by two structures, sandwich and layer, (composite aramid fiber-carbon fiber polyamide am). Source: Ref 5 More
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Published: 15 May 2022
Fig. 3 Derived expression applied to epoxy composites More
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Published: 15 May 2022
Fig. 7 Specific wear rates for phenolic resin and its composites. The data are reported for various experimental conditions and pv (pressure × velocity) factors as reported in the literature as given in Table 2 . More
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Published: 15 May 2022
Fig. 12 Wear rate of PTFE and its composites under different experimental conditions. For specimens 1 to 4: sliding speed ( v ) = 0.2 m/s; normal pressure ( p ) = 0.05 MPa (0.007 ksi). Source: Ref 14 . For specimens 7 to 9: sliding speed ( v ) = 1.6 m/s; normal pressure ( p ) = 0.69 MPa (0.10 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001517
EISBN: 978-1-62708-217-4
... Abstract The purpose of this investigation was to determine the cause of the ultrasonic signal attenuation noted during an inspection of a composite aircraft component. Although ultrasonics was able to identify the location of the defective areas, destructive analysis had to be utilized...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... of corrosion products, the geometry of fracture surfaces, or inaccessibility of the component making chemical analysis a challenge. The investigator must take every precaution to avoid delivering misleading compositional information, and engineering/scientific judgement is key in providing the best possible...
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Published: 01 January 2002
Fig. 20 Specific wear rate as a function of fiber composition in hybrid composite ( L 93 N, velocity V ) 0.5 m/s, nominal V f 0.57 with dotted curve for calculated values as per equation in Ref 59 . IROM, inverse rule of mixture; LROM, linear rule of mixture. Source: Ref 59 More
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
... Abstract This article provides practical information and data on property development in engineering plastics. It discusses the effects of composition on submolecular and higher-order structure and the influence of plasticizers, additives, and blowing agents. It examines stress-strain curves...
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Published: 01 June 2019
Fig. 13 Microstructure at center of Bolt 23 (AXR; type E composition) More
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Published: 01 June 2019
Fig. 14 Microstructure at center of Bolt 24 (Wriggle; type A composition) More