Preliminary assessment of neutron radiography for detecting inhomogeneities in ceramics. Technical report

Technical Report · Sat Aug 01 00:00:00 EDT 1987

OSTI ID:5363787

Corbin, N D; Pujari, V K; Antal, J J; Marotta, A S

As a result of the availability of small neutron sources, neutron radiography is becoming a more accessible tool for materials evaluation. Prior to the development of these sources, nuclear reactors were needed for neutron radiography. The attenuation coefficients of the elements for neutrons are very different from their X-ray attenuation coefficients; for example, neutrons interact strongly with hydrogen atoms. As a result, one can readily detect the spatial distribution of hydrated species and polymers within a ceramic body. Potential applications for neutron radiography are found in evaluating drying and binder-removal processes from ceramic compacts. This paper illustrates the use of neutron radiography for detecting voids, polymer inclusions, and binder distributions in SiC, Si{sub 3}N{sub 4} and A{sub 12}O{sub 3} based materials.

• Research Organization: Army Materials Research Agency, Watertown, MA (USA). Materials Technology Lab.
• OSTI ID: 5363787
• Report Number(s): AD-A-211742/2/XAB; MTL-TR-89-71
• Resource Relation: Other Information: Pub. in Proceedings of the Joint Conference on Nondestructive Testing of High-Performance Ceramics, 114-127(25-27 Aug 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
07 ISOTOPES AND RADIATION SOURCES
CERAMICS
NEUTRON RADIOGRAPHY
DEFECTS
MATERIALS TESTING
ATOMS
ATTENUATION
BINDERS
DISTRIBUTION
DRYING
HYDRATES
HYDROGEN
NEUTRON SOURCES
NUCLEAR REACTIONS
POLYMERS
PROGRESS REPORT
REMOVAL
SPATIAL DISTRIBUTION
DOCUMENT TYPES
ELEMENTS
INDUSTRIAL RADIOGRAPHY
NONMETALS
PARTICLE SOURCES
RADIATION SOURCES
TESTING
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
070204 - Radiation Sources- Industrial Uses
Radiometric