Measurement of Melting Point and Radiance Temperature (at Melting Point and at 653 nm) of Hafnium-3 (wt. %) Zirconium by a Pulse Heating Method |
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Authors: | A. Cezairliyan J. L. McClure |
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Affiliation: | Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234 |
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Abstract: | A subsecond duration pulse heating method is used to measure the melting point and radiance temperature (at 653 nm) at the melting point of hafnium containing 3.12 weight percent zirconium. The results yield a value of 2471 K for the melting point on the International Practical Temperature Scale of 1968. The radiance temperature (at 653 nm) of this material at its melting point is 2236 K, and the corresponding normal spectral emittance is 0.39. Estimated inaccuracies are: 10 K in the melting point and in the radiance temperature, and 5 percent in the normal spectral emittance. |
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Keywords: | Hafnium high-speed measurement high temperature melting point pyrometry radiance temperature |
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