Validity of Using Average Diameter for Determination of Tensile Strength and Weibull Modulus of Ceramic Filaments

Abstract

Strengths and Weibull moduli for alumina/yttrium aluminum garnet eutectic (AYE) filaments and for Si‐C‐O (Nicalon TM ) filaments were calculated using measured and average filament diameters. The strengths agreed closely. Thus an average filament diameter could be used instead of the measured filament diameter in calculating strengths. The Weibull modulus obtained from an average filament diameter approximates the Weibull modulus obtained using the measured filament diameter.