Morphology 63 15 PEEK 150P 10 5 COOLED ANNEALED 一 FIT TO DATA 0 10 20 30 40 Crystallinity,c(percent) FIGURE 22. Measured Mode I Fracture Toughness of PEEK 150P as a Function of Degree of Crystallinity[108] APC-2 10 CN-COOLED ● CN-ANNEALED FIT TO DATA 0 0 10 20 30 40 10 口 ENF-COOLED ENF-ANNEALED RS-COOLED 0 0 10 20 30 40 Crystallinity,c(percent) FIGURE 23. Mode I and Mode ll Fracture Energy of APC-2 as a Function of Degree of Crystallinity [108]Morphology 63 PEEK 15OP ANNEALED 01 I I I I I I I I 0 10 20 30 40 Ctystailinity, c (percent) FIGURE 22. Measured Mode I Fracture Toughness of PEEK 15OP as a Function of Degree of Crystallinity [108] APC-2 0 CN-COOLED - . CN-ANNEALED - FIT TO DATA 0 I I I I I I I 0 10 20 30 40 $ ‘F 10 - fis g= aS ou 2 q ENF-COOLED - 4 ENF-ANNEALED A RS-COOLED 0 I I I I I I I 0 10 20 30 40 Crystallinity, c (percent) FIGURE 23. Mode I and Mode II Fracture Energy of APCQ as a Function of Degree of Crystallinity [108]