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Evolution of crystallinity of PEEK and glass-fibre reinforced PEEK under tribological conditions using Raman spectroscopy

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Academic year: 2021

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Figure

Fig. 1. Typical friction coe fficient evolution for PEEK and PEEK-GF30 mea- mea-sured for a tribological test with a 440C steel ball in reciprocal translation during 1500 s ( F n = 25 N , f = 5 Hz).
Fig. 2. Evolution of wear track width.
Fig. 4. Profilometry images (a and b) and SEM images (c and d) of wom surfaces for tests during 1500s; pure PEEK (a and c), PEEK­ GF30 (b and d)
Fig. 6. SEM and EDS analysis of counterface against a) pure PEEK and b) PEEK-GF30
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