High-Temperature Testing Fixture for Ceramic O-Rings

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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2006
Accession Number
ADA445394

Entities

People

  • David Gray
  • Robert Kaste

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Graphitic Materials
  • Gun Barrels
  • Guns
  • High Temperature
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Military Research
  • O Rings
  • Rings
  • Test Fixtures
  • Test Methods
  • Test Stands

Readers

  • Electrical Engineering
  • Integrated Circuit Design and Technology.
  • Structural Health Monitoring of Composite Structures.