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. 2019 Apr 10;11(4):656. doi: 10.3390/polym11040656

Figure 1.

Figure 1

Flexural properties of printed and molding (M) polyether ether ketone (PEEK) and carbon fiber (CF)/PEEK specimens. (a) CF/PEEK bending specimens with orthogonal printing direction (horizontal and vertical) both printed according to ISO 178:2010 (size: 80 × 10 × 4 mm3). (b) Typical stress to strain curves of flexural experiments. The inset in the bottom right corner shows the linear range that determines the module of each bending specimen. The boxplots of (c) bending strength and (d) bending modulus of flexural specimens, which indicate the distribution of experimental data.