In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 99, No. 7 ( 2008-07-01), p. 712-715
Abstract:
The eutectic reaction between the NiZr and NiZr 2 compounds in the Ni – Zr binary phase diagram was evaluated according to the previous experimental measurements and thermodynamic calculations. A discrepancy between the calculations and the measurements exists. In order to determine definitely this eutectic temperature, Ni – Zr alloys of the compositions 65, 68, 72 and 74 wt.% Zr were prepared by melting in an arc furnace under a purified argon atmosphere. The phase transformation temperature was measured by Differential Scanning Calorimetry using both alumina and zirconia crucibles. At heating rates of 5, 10 and 20 K min − 1 , the eutectic temperature between the NiZr and NiZr 2 compounds was determined consistently to be 1022 ± 5 °C. Zirconia crucibles can be used in Differential Scanning Calorimetry measurements of zirconium-containing alloys but only below 1170 °C.
Type of Medium:
Online Resource
ISSN:
2195-8556
,
1862-5282
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2008
detail.hit.zdb_id:
2232675-3
detail.hit.zdb_id:
2128058-7
detail.hit.zdb_id:
203021-4
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