Article

Thermophysical Properties of Materials

2019. V. 57. № 2. P. 177–181

Kamaeva L.V., Lad'yanov V.I.

Heat capacity of nickel–phosphorus eutectic melts

Annotation

$\rm Ni$ –

$\rm P$ alloys containing phosphorus from

$15$ to

$23$ at

$\%$ , which is close to the eutectic concentration, are studied with differential scanning calorimetry. The heat capacity

$C_P$ is calculated at a constant pressure for the melts from the obtained data. The

$C_P$ values of the alloys at temperatures above their melting points at

$50^{\circ}$ C are

$0.53$ –

$0.59$ J/(g K) and are in good agreement with the literature heat capacity values for liquid nickel and

$\rm Ni_3\rm P$ . The

$C_P$ of all of the melts linearly increases from the

$T_L$ liquidus temperature to

$1400^{\circ}$ С. There is a maximum on the concentration dependence of

$C_P$ at the eutectic concentration.

Article reference:
Kamaeva L.V., Lad'yanov V.I. Heat capacity of nickel–phosphorus eutectic melts, High Temp., 2019. V. 57. № 2. P. 177

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