Technical Note: Core–Edge Domain Contrast Control for Ultra-High-Strength Carbon
Year: 2026
Type: article
Abstract: This technical note proposes a practical, testable lever for improving ultra-high-strength carbon fiber and its translation into composite performance: controlling and measuring core–edge domain contrast. The core idea is that elite fiber performance is often limited by edge-domain behavior (surface chemistry, sizing distribution, defect-driven crack initiation, and interfacial load transfer), even when bulk corridor alignment and tensile strength are high. The note defines a compact “Core–Edge Domain Contrast” (CEDC) signature built from three categories: (1) core corridor quality (alignment and variability), (2) edge-domain chemistry and interface readiness (surface functional groups, sizing level/uniformity), and (3) failure initiation indicators (variability statistics and simple interface tests). A minimal, low-burden test matrix is included to evaluate whether CEDC predicts composite interfacial performance and reliability more effectively than tensile strength alone. This is a non-proprietary research contribution intended to be easy to reproduce and extend. It does not disclose enabling manufacturing recipes. If useful, citation is appreciated.
Author: Keith T. Mountjoy
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7126467225
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