Gamma irradiation effects on thermal, physical and tribological properties of PEEK under water lubricated conditions

Khare, Neelima; Limaye, P.K.; Soni, N. L.; Patel, Rajesh

doi:10.1016/j.wear.2015.08.005

Cited by 28 publications

(15 citation statements)

References 18 publications

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“…In general, a high hardness value is beneficial to the wear resistance of material . The measured hardness of PEEK, PEEK/SCF, and PEEK/SCF/CS are presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

Influence of cenosphere on tribological properties of short carbon fiber reinforced PEEK composites

Liu

Tao

et al. 2018

J of Applied Polymer Sci

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This investigation focuses on the effects of cenosphere fillers on tribological properties of carbon fiber reinforced PEEK composites. Dry sliding wear behavior of 15 wt % short carbon fiber (SCF) reinforced PEEK composites filled with 5, 10, 15, and 20 wt % cenosphere was reported in this study, pure PEEK and 15 wt % SCF reinforced PEEK composites were also prepared for comparative analysis. Friction and wear experiments were conducted on a ring-on-block apparatus under different loads (100-400 N). The experimental results showed that all the composites exhibited lower coefficient of friction and better wear resistance than the matrix resin under different load conditions. It is noted that 10 wt % of the cenosphere particles filled SCF reinforced PEEK composites show superior tribological properties when compared to the other composites in this study. The morphologies of the worn surface and the fracture surface were analyzed by scanning electron microscopy and the transfer film was observed by optical microscope to understand the dominant wear mechanisms.

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“…In general, a high hardness value is beneficial to the wear resistance of material . The measured hardness of PEEK, PEEK/SCF, and PEEK/SCF/CS are presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

Influence of cenosphere on tribological properties of short carbon fiber reinforced PEEK composites

Liu

Tao

et al. 2018

J of Applied Polymer Sci

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“…In addition, the lower wear rate of PEEK under the room temperature test could also be an effect of the higher hardness. Generally, high hardness can be seen as being beneficial to the wear resistance . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…As a high‐performance semicrystalline thermoplastic polymer, PEEK exhibits a high thermal‐mechanical property, low flammability, and chemical resistance, which makes it frequently use as a replacement for metals in a variety of high‐performance end‐use applications . Additionally, it can easily be processed in various complex shapes and also make them possess high toughness and excellent wear resistance . With the increasing use of PEEK‐matrix materials in various fretting conditions, it is necessary to study their own unique response to the special application.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of fretting wear behavior of PEEK by analyzing the change of crystallinity: The high temperature effect

Wang

Ning

et al. 2017

Polymer Engineering & Sci

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In this study, the high-temperature tribological behaviors of poly-ether-ether-ketone (PEEK) under fretting wear condition have been evaluated by using a SRV-IV oscillating reciprocating ball-on-disk tribometer. It can be found that the noticeable transitions of the friction coefficient and wear rate occurred when the test temperature was 1508C. Based on the observations of the morphologies of worn surfaces, the transition of wear mechanisms of PEEK actually occurred at 1508C. In addition, by investigating the change of the crystalline structure of PEEK, results showed that the wear contributed to the formation of a higher crystallinity of PEEK. The change of the crystallinity further affected the tribological behavior of PEEK. According to the result of permanganate etching, it also can be observed that the main component of plastic deformation resulting from adhesive wear was the amorphous phase.

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“…The T g increased with the gamma dose, and the highest value was recorded at a dose of 150 kGy. Therefore, the fillers in the TPE matrix might form a network of nano-particles that restricts the movement of the macromolecules; as a result, T g of the matrix increased ( Khare et al, 2015 ; Lafi and Imran, 2010 ). However, the T g progressively reduced with an increasing dose up to 250 kGy dose as a result of chain scission which occurred readily inside the amorphous area.…”

Section: Resultsmentioning

confidence: 99%

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Tarawneh

Saraireh

Chen

et al. 2021

Radiation Physics and Chemistry

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A thermoplastic elastomer (TPE) based nanocomposite with the same weight ratio of hybrid nanofillers composed of carbon nanotubes (CNTs) and montmorillonite nanoclay (DK4) was prepared using a melt blending technique with an internal mixer. The TPE composite was blended from polylactic acid (PLA), liquid natural rubber (LNR) as a compatibilizer and natural rubber (NR) in a volume ratio of 70:10:20, respectively. The weight ratio of CNTs and DK4 was 2.5 wt%. The prepared samples were exposed to gamma radiation at range of 0–250 kGy. After exposure to gamma radiation, the mechanical, thermo-mechanical, thermal and electrical conductivity properties of the composites were significantly higher than unirradiated TPE composites as the irradiation doses increased up to 150 kGy. Transmission electron microscopy (TEM) micrographs revealed the good distribution and interaction between the nano-fillers and the matrix in the prepared TPE hybrid nanocomposites. In summary, the findings from this work definite that gamma irradiation might be a viable treatment to improve the properties of TPE nanocomposite for electronic packaging applications.

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Gamma irradiation effects on thermal, physical and tribological properties of PEEK under water lubricated conditions

Cited by 28 publications

References 18 publications

Influence of cenosphere on tribological properties of short carbon fiber reinforced PEEK composites

Influence of cenosphere on tribological properties of short carbon fiber reinforced PEEK composites

Evaluation of fretting wear behavior of PEEK by analyzing the change of crystallinity: The high temperature effect

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

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