Accession Number:

AD0287821

Title:

MATERIALS - SOLID STATE REACTIONS AT HIGH TEMPERATURE - DEVELOPMENT OF X-RAY DIFFRACTION TECHNIQUES FOR STUDY OF

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

Report Date:

1962-10-26

Pagination or Media Count:

1.0

Abstract:

A literature survey was conducted on high temperature x-ray diffraction equipment and echniques. The designs of various cameras and diffractometers were studied and compared. After considering the advantages and disadvantages of each type, a high temperature diffractometer furnace attachment to a wide angle goniometer was decided upon. A furnace was designed which could be used to obtain x-ray diffraction paterns at temperatures up to 1600 C and at pressures of 10 to the -6th power mm of Hg or at controlled atmospheres. Essentials of this design are 1 water-cooled Al housing 2 Al or Be foil windows for passage of x-rays 3 water-cooled Cu electrodes 4 Ta heating elements and 5 Ta radiation shields. A stainless steel shaft is made to extend through the goniometer so that the furnace attachment can be interchanged with the standard room temperature sample holder with a minimum of effort. Alignment procedures and optimum sample preparations for this instrument were devised. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE