Accession Number:

AD0262165

Title:

THERMAL-SHOCK RESISTANT PROPERTIES OF CERAMICS

Descriptive Note:

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OHIO

Personal Author(s):

Report Date:

1961-04-30

Pagination or Media Count:

1.0

Abstract:

An investigation was made to develop a test method and establish criteria for thermal-stress resistance to provide means of assuring adequate performance in this respect of the ceramic components procured by the Sgh analysis was made of the thermal-stress conditions encountered in service. Next, a review of existing methods for determining thermal-stress resistance of ceramics was conducted and the methods were evaluated. One method was selected which appeared to give the most reproducible results, and this method was used to evaluate some materials listed in Specifgnal Corps. Emphasis was placed on developing a single general test for materials listed under Specification MIL-I10. A thorough analysis was made of the thermal-stress conditions encountered in service. Next, a review of existing methods for determining thermal-stress resistance of ceramics was conducted and the methods were evaluated. One method was selected which appeared to give the most reproducible results, and this method was used to evaluate some materials listed in Specification MIL-I-10. The most common failures appeared to be of the one-cycle type rather than of the fatigue type. The most severe thermal loading envisioned was a localized hot spot on the surface of a large ceramic body. This type of loading is sometimes experienced during an emergency repair condition in the field. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE