Accession Number : AD0475018

Title :   TERNARY PHASE EQUILIBRIA IN TRANSITION METAL-BORON- CARBON-SILICON SYSTEMS. PART II. TERNARY SYSTEMS. VOLUME II. TI-TA-C SYSTEM.

Descriptive Note : Technical rept.,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CA

Personal Author(s) : Brukl, C. E. ; Harmon, D. P.

Report Date : OCT 1965

Pagination or Media Count : 77

Abstract : The ternary titanium-tantalum- carbon system was investigated using X-ray, DTA, melting point, and metallographic techniques on chemically analyzed alloys; a complete phase diagram for temperatures above 1500 C was established. The system contains a rather high melting, continuous monocarbide solid solution with a large carbon defect; a moderate titanium-tantalum exchange occurs in both the high and low temperature modifications of the subcarbide, Ta2C. Two four-phase reaction planes are present in the metal-rich portion of the ternary diagram. The results of this investigation are described, discussed, and compared with another partial investigation of this system; possible applications are briefly mentioned. (Author)

Descriptors :   *CARBIDES), (*PHASE STUDIES, TITANIUM ALLOYS, TANTALUM ALLOYS, TRANSITION METALS, X RAY DIFFRACTION, DIFFERENTIAL THERMAL ANALYSIS, MELTING POINT, METALLOGRAPHY, SOLID SOLUTIONS, HIGH TEMPERATURE, CHEMICAL ANALYSIS.

Subject Categories : Physical Chemistry
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE