학술논문
An initial comparison between x-ray and NMR computer tomography relative to detection of organic binder distribution
Document Type
Conference
Author
Source
Conference: 13. annual conference on composites and advanced ceramics, Cocoa Beach, FL, USA, 15 Jan 1989; Other Information: Portions of this document are illegible in microfiche products
Subject
Language
English
Abstract
Knowledge of the distribution of the organic materials used in the injection molding of ceramics is important because nonuniformity affects local densification rates and hence mechanical properties. X-ray computed tomography and nuclear magnetic resonance tomography are two noncontacting, noninvasive, nondestructive methods that have recently been used to evaluate detection sensitivity to a set of Si/sub 3/N/sub 4/ specimens with discrete known variations in organic content ranging between 2 and 20 wt %. Results suggest that with current technology, x-ray CT is more sensitive to variations and can determine 1% weight variations. 12 refs., 9 figs., 2 tabs.