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Ultra-high-temperature Tantalum-hafnium Carbonitride Ceramics Fabricated by Combustion Synthesis and Spark Plasma Sintering by V.S. Buinevich; A.A. Nepapushev; D.O. Moskovskikh; K.V. Kuskov; S.N. Yudin; A.S. Mukasyan is a Materials Science article available to read on EtoBox.
What is Ultra-high-temperature Tantalum-hafnium Carbonitride Ceramics Fabricated by Combustion Synthesis and Spark Plasma Sintering about?
We report the fabrication of dense single-phase (Ta,Hf)CN carbonitride ceramics using a combination of combustion synthesis (CS) and spark plasma sintering (SPS). The ceramic powder was produced by high-energy ball milling of the reactants (Ta, Hf, C) in different atomic ratios followed by CS of the obtained nanostructured composites in a nitrogen atmosphere. X-ray diffraction analysis of the combustion products revealed the formation of (Ta,Hf)CN with cubic B1 structures as the dominant phases for all investigated compositions. The SPS of the as-synthesized powders allowed both homogenization of the composition and consolidation of the bulk single-phase carbonitride ceramics with a relative density of 98 ± 1 %. Ta25Hf75CN showed the highest hardness (19.4 ± 0.2 GPa) and fracture toughness (5.4 ± 0.4 MPa m1/2) among the investigated composites and excellent oxidation resistance in air.
Who reads Ultra-high-temperature Tantalum-hafnium Carbonitride Ceramics Fabricated by Combustion Synthesis and Spark Plasma Sintering?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- V.S. Buinevich; A.A. Nepapushev; D.O. Moskovskikh; K.V. Kuskov; S.N. Yudin; A.S. Mukasyan
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Materials Science (Physical Sciences)