Electrical Resistivities of Monocrystalline and Polycrystalline TiB2 |
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| Authors: | A D McLEOD J S HAGGERTY D R SADOWAY |
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| Affiliation: | Massachusetts Institute of Technology, Department of Materials Science and Engineering, Cambridge, Massachusetts 02139 |
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| Abstract: | The electrical resistivity of monocrystalline and polycrystalline TiB2, was measured under an inert atmosphere by a four-point ac impedance technique over the range 298 to 1373 K. The results are expressed in the form ρ-ρ298= m(T -298). The following values of ρ298 (μω.cm) and m (nω.cm-K-1) were determined: for polycrystalline TiB2 (69% dense) 18.2 and 95; for polycrystalline TiB2 (99% dense) 7.4 and 42; and for monocrystalline TiB2, 6.6 and 34.9. |
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