Abstract
Features of sintering in argon and structure formation of materials of the systems (TiN, ZrN) – Ni are studied. It is shown that sintering is accompanied by the release of nitrogen from nitrides, reciprocal dissolution of nickel in nitrides and also Ti and Zr in nickel, formation of nickel intermetallics, and an increase in the microhardness of solid phase grains. The main reason for the quite high porosity of sintered TiN – Ni and ZrN – Ni composites are the accumulation of nitrogen released from the nitrides within closed volumes with formation of closed pores. Sintering of materials is accompanied by the growth and faceting of solid phase grains due to dissolution and recrystallization through a liquid phase, and also an increase in metal phase content.
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Matsera, V.E. Compaction and Structure Formation during Sintering of Composite Materials Based on Nitrides of Groups IV and V Transition Metals. Part 5. Sintering of Composite Materials of the Systems (TiN, ZrN). Powder Metallurgy and Metal Ceramics 42, 350–356 (2003). https://doi.org/10.1023/B:PMMC.0000004154.67060.c2
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DOI: https://doi.org/10.1023/B:PMMC.0000004154.67060.c2