DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0752317
Title:
Damping in Porcelain Enamel Coatings.
Descriptive Note:
Summary technical rept. Jun 69-Jun 71,
Corporate Author:
MINNESOTA UNIV MINNEAPOLIS DEPT OF AERONAUTICS AND ENGINEERING MECHANICS
Report Date:
1972-07-01
Pagination or Media Count:
79.0
Abstract:
Porcelain enamels are extensively used as protective and decorative coatings for metal parts. This report describes a study of the damping capability of these coatings at elevated temperatures. A maximum loss coefficient of .04 was observed for a bending specimen of mean thickness 0.09 inches, with a .0055 inch thick porcelain enamel coating. Experimental data showing the dependence of damping on temperature, coating thickness and frequency is presented. A method for determining the complex elastic modulus of the coating material is discussed. Results from bending and torsion experiments are compared. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE