Journal article
Fabrication and electrical and thermal properties of Ti 2InC, Hf 2InC and (Ti,Hf) 2InC
Journal of alloys and compounds, v 340(1), pp 173-179
2002
Abstract
In this paper we report on the characterization of predominantly single phase, fully dense Ti
2InC (Ti
1.96InC
1.15), Hf
2InC (Hf
1.94InC
1.26) and (Ti,Hf)
2InC ((Ti
0.47,Hf
0.56)
2InC
1.26) samples produced by reactive hot isostatic pressing of the elemental powders. The
a and
c lattice parameters in nm, were, respectively: 0.3134; 1.4077 for Ti
2InC; 0.322, 1.443 for (Ti,Hf)
2InC; and 0.331 and 1.472 for Hf
2InC. The heat capacities, thermal expansion coefficients, thermal and electrical conductivities were measured as a function of temperature. These ternaries are good electrical conductors with a resistivity that increases linearly with increasing temperatures. At 0.28 μΩ m, the room temperature resistivity of (Ti,Hf)
2InC is higher than the end members (∼0.2 μΩ m), indicating a solid solution scattering effect. In the 300 to 1273 K temperature range the thermal expansion coefficients are: 7.6×10
−6 K
−1 for Hf
2InC, 9.5×10
−6 K
−1 for Ti
2InC, and 8.6×10
−6 K
−1 for (Ti,Hf)
2InC. They are all good conductors of heat (20 to 26 W/m K) with the electronic component of conductivity dominating at all temperatures. Extended exposure of Ti
2InC to vacuum (∼10
−4 atm) at ∼800
°C, results in the selective sublimation of In, and the conversion of Ti
2InC to TiC
x
.
Metrics
Details
- Title
- Fabrication and electrical and thermal properties of Ti 2InC, Hf 2InC and (Ti,Hf) 2InC
- Creators
- M.W. Barsoum - Drexel UniversityJ. Golczewski - Former Dept. Materials Synthesis and Microstructure Design, Max Planck Institute for Intelligent Systems, Max Planck SocietyH.J. Seifert - Former Dept. Materials Synthesis and Microstructure Design, Max Planck Institute for Intelligent Systems, Max Planck SocietyF. Aldinger - Former Dept. Materials Synthesis and Microstructure Design, Max Planck Institute for Intelligent Systems, Max Planck Society
- Publication Details
- Journal of alloys and compounds, v 340(1), pp 173-179
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000176206700030
- Scopus ID
- 2-s2.0-0037178141
- Other Identifier
- 991019167837504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering