Advances in destructive sectioning of very small or complex structures are discussed. Examination is made by filling the structure in a vacuum with a low viscosity potting compound and then cutting without danger of spatial disorientation

Riley, T.

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NASA Technical Reports Server

December 1966	 Brief 66-10676 
NASA TECH BRIEF 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Study Made of Destructive Sectioning of Complex Structures for Examination 
The problem:	 Notes: 
Destructive sectioning is a common examination	 1. This potting and sectioning technique has been 
technique and is used in reliability and quality control 	 applied to a very small ion engine with excellent 
determinations. However, very small or complex	 results. 
structures often cannot readily be sectioned while 	 2. Inquiries concerning this innovation may be di-
maintaining spatial integrity of the component parts.	 rected to: 
is	 Fill 
solution: 
the structure in a vacuum with a low viscosity 
(approx. 1500 centipoises) potting compound. 
How it's done: 
After the potting compound has hardened, the 
structure can be cut in any plane without danger of 
spatial disorientation. Visibility of the cut surface 
can be increased by polishing techniques.
Technology Utilization Officer 
Lewis Research Center 
21000 Brookpark Road 
Cleveland, Ohio 44135 
Reference: B66-10676 
Patent status: 
No patent action is contemplated by NASA. 
Source: T. Riley 
(Lewis-341) 
Category os 
This document was prepared under the sponsorship of the National	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
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Study made of destructive sectioning of complex structures for examination

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