Changes in crystal structure parameters
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Zongquan Wu; Anqiu Zhang; Stephen Z. D. Cheng; Bing Huang; Baojun Qian
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Article
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1990
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John Wiley and Sons
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English
⚖ 841 KB
## Abstract As‐spun poly(__p__‐phenylene terephthalamide) (PPTA) fibers have been annealed by three different methods: (1) the relaxation mode; (2) the constant temperature mode; and (3) the constant tension mode. Wide‐angle x‐ray diffraction (WAXD) was used with all three modes to characterize the