Experiment Research for Fracture Toughness of PAN-Based Carbon Fibers

Abstract:

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For the sake of the carbon filaments’ fracture toughness, using the focused ion beam (FIB) to etch the carbon fibers and got different tensile strength, and all specimens were stretched on an Instron-type filaments testing machine and got the samples’ tensile strength, The crack-to-mirror size ratio was assumed as a constant, In virtue of Griffith fracture theory, Fracture toughness (KΙC) of representative high-strength type PAN (polyacrylonitrile)-based carbon fibers, Torayca T300 and T800, were estimated to be 1MPam1/2 from the tensile strength vs. fracture mirror size relation.

Info:

Periodical:

Key Engineering Materials (Volumes 462-463)

Edited by:

Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri

Pages:

1361-1366

DOI:

10.4028/www.scientific.net/KEM.462-463.1361

Citation:

B. M. Zhang and Y. F. Wu, "Experiment Research for Fracture Toughness of PAN-Based Carbon Fibers", Key Engineering Materials, Vols. 462-463, pp. 1361-1366, 2011

Online since:

January 2011

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$35.00

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