Boronnitride and Siliconnitride Systems.
Abstract
Transition Metal-Boron-Nitrogen Systems: The existing literature data regarding the systems Fe-B-N, Co-B-N and Ni-B-N were critically assessed including the binary boundary systems. The thermodynamic phase equilibria at 900 C were reinvestigated for the binary systems Fe-B, Co-B and Ni-B using different methods of preparation and analysis. A complete constitutional diagram Fe-B was established in the temperature range 600 < T < 1700 C using X-ray phase analysis, metallography, Differential Thermal Analysis, (DTA) and melting point analysis. Transition Metal-Silicon-Nitrogen Systems: The compilation and critical assessment of existing literature data as well as the experimental investigation in the ternary systems Ti-Si-N, Zr-Si-N, V-Si-N, Nb-Si-N and Ta-Si-N and the respective TM-N as well as TM-Si binary systems were completed. Silicon nitride reacts with each of these transition metals to form either binary silicides and nitrides or ternary phases of D8 sub 8-type structure with the general formula TM5Si3N1-x. These phases are commonly known as Nowotny phases and were described in the literature. No new ternary phase was observed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1985
- Accession Number
- ADA161563
Entities
People
- Julius Schuster
- Peter Rogl
Organizations
- University of Vienna