Report describes the procedures and techniques used in the application of a ceramic coating and the evaluation of test parts through observation of the cracks that occur in this coating due to loading

Lynn, E. K.

Rollins, C. T.

English

NASA Technical Reports Server

September 1968
	 Brief 68-10355 
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. 
Experiments with Ceramic Coatings 
A report has been prepared that views the present 
state of research and development on ceramic coat-
ings. The report describes the procedures and tech-
niques used in the application of a ceramic coating 
and the evaluation of test parts through observation 
of the cracks that occur in this coating due to load-
ing. Several examples illustrating the unique capabili-
ties of this versatile tool are also presented. 
Methods for the use of a commercially available 
ceramic stress coat are not sufficiently developed in 
the manufacturer's literature for effective use, and 
at the present no other sources of information are 
available on the subject. This compilation should sup-
plement that information contained in the manufac-
turer's literature, and should be of benefit to anyone 
attempting to use this valuable tool in experimental 
stress analysis. 
Techniques and procedures which were developed 
and adopted to obtain a reliable, effective ceramic 
coating include: a specific method of applying and 
glazing the ceramic coating; a new method for cali-
brating the threshold strain of the coating; and sev-
eral beneficial techniques for crack detection using 
Statiflux.
Notes: 
Stresses can be evaluated on parts subjected to 
static or dynamic loading under a wide range of 
temperatures and environments. These techniques 
help to ensure the effectiveness of this means of 
stress determination. 
2. Inquiries concerning this report may be directed 
to:
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: B68-10355 
Patent status: 
No patent action is contemplated by NASA. 
Source: C. T. Rollins and E. K. Lynn 
of North American Rockwell Corporation 
under contract to 
Marshall Space Flight Center 
(M FS- 18150) 
Category 03 
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.
https://ntrs.nasa.gov/search.jsp?R=19680000355 2020-03-12T05:54:43+00:00Z



Experiments with ceramic coatings

Abstract

Similar works

Full text

Available Versions

NASA Technical Reports Server