Accession Number:

ADA445394

Title:

High-Temperature Testing Fixture for Ceramic O-Rings

Descriptive Note:

Final rept., Dec 2004-Dec 2005

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE

Personal Author(s):

Report Date:

2006-04-01

Pagination or Media Count:

18.0

Abstract:

A test method is being used to determine the tensile strength of ceramic O-ring specimens as part of an effort at the U.S. Army Research Laboratory to develop ceramic materials for gun barrel applications. The tensile strength of the inner surface of a ceramic O-ring specimen is determined by applying a compressive load at 2 points diametrically opposite each other on the specimen. Testing was conducted at room temperature and at 700 degrees C. A test fixture was developed to facilitate the placement and alignment of the O-ring specimen during the 700 degrees C testing. The fixture is described in this report, and preliminary data on silicon nitride Si3N4 is provided to show the utility of the fixture.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE