HIGH TEMPERATURE TENSILE TESTING METHOD FOR MONOFILAMENT CERAMICFIBERS

摘要

An alternative method for testing tensile strength of ceramic fibers at high temperatureshas been developed,whereby the entire sample is in the hot zone of the furnace.This eliminatesany effect that a thermal gradient might have on the mechanical properties of the fiber.Themethod proposed here was calibrated with Nextel ? 720 fibers.Tensile strengths comparable tothose published by 3M were obtained.