REACTION OF MOLYBDENUM WITH TITANIUM CARBIDE (VZAIMODEISTVIE MOLIBDENA S KARBIDOM TITANA),
Abstract
Interaction between molybdenum and titanium carbide in the 1.2-90 mol % TiC range was investigated by x-ray and metallographic techniques. Samples of Mo-TiC in various ratios were prepared by prolonged melting technique as well as by fusion in vacuo of mixtures of TiC with Mo at 1850-2000C. The oxygen was removed from the samples by reduction with hydrogen at 1000C. It was found that the Mo-TiC system is quasibinary and exhibits a eutectic type crystallization pattern. The eutectic temperature is 2175 plus or minus 15C. The solubility of Mo in TiC at the eutectic temperature is 37 mol % and at 2000C it is 25 mol %. The solubility of TiC in Mo at the eutectic temperature is within the 3.5-4.5 mol % range and at 2000C it falls within the 2-2.5 mol % range. The temperature dependence of the thermodynamic activity of carbon in TiC and Mo2C is shown. A phase diagram of the quasibinary Mo-TiC system is also given. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 26, 1967
- Accession Number
- AD0670898
Entities
People
- V. N. Eremenko
Organizations
- National Air and Space Intelligence Center