کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7850651 | 1508849 | 2016 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvements in the mechanical properties of carbon nanotube fibers through graphene oxide interlocking
ترجمه فارسی عنوان
بهبود خواص مکانیکی فیبرهای نانولوله کربن از طریق اتصال به اکسید گرافین
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Carbon nanotubes (CNTs) have attracted remarkable attention due to their high mechanical performance and low density which are desirable for application as lightweight materials in automotive and aerospace industries to improve fuel efficiency. However, CNT fibers generally exhibit far lower mechanical properties (strength, toughness, etc.) than individual CNTs due to the weak interfacial shear strength between adjacent shells, nanotubes, and nanotube bundles, causing insufficient load transfer. In this study, to improve the interfacial shear strength of the fibers, graphene oxide (GO) was infiltrated into the CNT fibers to interlock CNT bundles. GO was selected due to its high mechanical properties and similar carbon-based structure as the CNT fibers. In addition, GO interfaces are known to exhibit higher frictional forces for sliding contacts than those found for pristine graphene sheets, which makes it more desirable for enhancing the shear interactions. GO particles with a width of â¼40Â nm, which match closely to the void size within fibers, were optimal for enhancing the mechanical properties of the CNT fibers. Tensile testing demonstrated optimized GO infiltrated CNT fibers exhibited improvement in: stiffness â¼100%, yield strength â¼110%, ultimate tensile strength â¼56%, and energy to failure â¼30% of pristine CNT fibers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 98, March 2016, Pages 291-299
Journal: Carbon - Volume 98, March 2016, Pages 291-299
نویسندگان
Yiyi Wang, Guillaume Colas, Tobin Filleter,