The mechanism of wear of polytetrafluoroethylene

Tanaka, Kyuichiro; Uchiyama, Yoshitaka; Toyooka, Satoru

doi:10.1016/0043-1648(73)90081-1

Cited by 292 publications

(120 citation statements)

References 9 publications

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“…because of the applied stress due to frictional resistance in the direc tion of sliding. Sz.tice the films had a thickness of a few hundred A and were highly oriente»;'., it is believed that they were produced as a result of shearing across the amorphous region between lamellae, as shown in Figure 34(a), (28,30).…”

Section: Wlabmentioning

confidence: 99%

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Micromechanism of wear at polymer-metal sliding interface

Kar

1978

Wear

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Section: Wlabmentioning

confidence: 99%

“…Since temperature rise is directly proportional to sliding speed, softening is expected to occur at much higher speeds. Tanaka et al (30) have reported the occurrence of softening on PTFE rubbing sur face at a sliding speed of 19 m/sec.…”

Section: Wlabmentioning

confidence: 99%

Micromechanism of wear at polymer-metal sliding interface

Kar

1978

Wear

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“…The filler materials include organic, inorganic, and metallic particulates in both macro-and nanolevels. Inclusion of solid lubricants such as graphite, molybdenum disulphide (MoS 2 ), and polytetrafluoroethylene (PTFE) into polymers has proven effective in reducing the coefficient of friction but their influence on wear resistance is not distinctly clear [1].…”

Section: Introductionmentioning

confidence: 99%

Role of Silicon Dioxide Filler on Mechanical and Dry Sliding Wear Behaviour of Glass-Epoxy Composites

Anjum¹,

Prasad

2013

Advances in Tribology

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The mechanical properties and dry sliding wear behaviour of glass fabric reinforced epoxy (G-E) composite with varying weight percentage of silicon dioxide (SiO 2 ) filler have been studied in the present work. The influence of sliding distance, velocity, and applied normal load on dry sliding wear behaviour has been considered using Taguchi's L 9 orthogonal array. Addition of SiO 2 increased the density, hardness, flexural, and impact strengths of G-E composite. Results of dry sliding wear tests showed increasing wear volume with increase in sliding distance, load, and sliding velocity for G-E and SiO 2 filled G-E composites. Taguchi's results indicate that the sliding distance played a significant role followed by applied load, sliding velocity, and SiO 2 loading. Scanning electron micrographs of the worn surfaces of composite samples at different test parameters show smooth surface, microploughing, and fine grooves under low load and velocity. However, severe damage of matrix with debonding and fiber breakage was seen at high load and velocity especially in unfilled G-E composite.

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“…where wear performance in no lubricated condition is a key parameter for material's selection (Hutchings, 1992;Friedrich et al, 2011). Creating polymer structures is much more complex than creation of metal structures because polymers consist of macromolecular chains that vary in length, orientation and composition, all of which affect tribological as well as other properties of polymers (Goldman, 1994;Mark, 2007;Tanaka et al, 1973). Among polymers, Kestamid (KS) is a type of cast polyamide or Cast Nylon 6, Nylon 66 with outstanding properties due to its cross-linked molecular structure, which is one of most commonly used engineering plastics as bearing and wear materials.…”

Section: Introductionmentioning

confidence: 99%

Wear analysis of polyamide based on a statistical approach

Şahin

2017

IJMPT

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Polymers are increasingly used for numerous tribological applications. Abrasive wear behaviours of cast polyamides of Kestoil (KT) and Kestamid (KS) were investigated using a Taguchi approach with combination effect of load, speed, distance and grit size. An orthogonal array and analysis of variance (ANOVA) were applied to investigate the influence of process parameters on weight loss. The results indicated that SNR decreased with increasing load and sliding distance while increased with increasing grit size considerably and sliding speed a slightly, but KT showed lower weight loss than that of KS under same conditions. ANOVA indicated that abrasive size and sliding distance had great effects on the weight losses, which were at 49.78%, 13.27% for KT samples and 29.22% and 11.71% for KS samples, respectively. Furthermore, a confidence interval (CI) for predicted mean on confirmation run for KT and KS samples was found about ±5.02, ±3.70 at 95% confidence level, respectively.

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The mechanism of wear of polytetrafluoroethylene

Cited by 292 publications

References 9 publications

Micromechanism of wear at polymer-metal sliding interface

Micromechanism of wear at polymer-metal sliding interface

Role of Silicon Dioxide Filler on Mechanical and Dry Sliding Wear Behaviour of Glass-Epoxy Composites

Wear analysis of polyamide based on a statistical approach

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