The density of Ni-AI alloys in both liquid state and solid-liquid coexistence state was measured with a modified pycnometric method. It was found that the density of Ni-AI alloys decreases with increasing temperature ...The density of Ni-AI alloys in both liquid state and solid-liquid coexistence state was measured with a modified pycnometric method. It was found that the density of Ni-AI alloys decreases with increasing temperature and Al concentration in the alloys. The molar volume of liquid Ni-AI binary alloys increases with the increase of temperature and Al concentration. The partial molar volume of Al in Ni-AI binary alloy was calculated approximately. The molar volume of liquid Ni-AI alloy determined in the present work shows a negative deviation from the ideal linear molar volume.展开更多
The density of molten Ni-Co-AI alloy was measured using a modified pycnometric method. It has been found that the density of the molten Ni-Co-AI alloy decreases with increasing temperature, Co concentration and the ra...The density of molten Ni-Co-AI alloy was measured using a modified pycnometric method. It has been found that the density of the molten Ni-Co-AI alloy decreases with increasing temperature, Co concentration and the ratio of Co concentration to Ni concentration in the alloy. The coefficient of volume expansion of the molten Ni-Co-AI alloy decreases with increasing Co concentration and the ratio of Co concentration to Ni concentration. The temperature coefficient of density increases with increasing the Co concentration or the ratio of Co concentration to Ni concentration in the alloy. The density of the molten Ni-Co-AI alloy as functions of both temperature and Co concentration was expressed.展开更多
The density of molten Ni-W alloys was measured with a nullified pycnometric method. It is fiund that the density of the molten Ni-W alloys decreases with temperature rising, but increases with the increase of tungste...The density of molten Ni-W alloys was measured with a nullified pycnometric method. It is fiund that the density of the molten Ni-W alloys decreases with temperature rising, but increases with the increase of tungsten concentrution in the alloys. The molar volume of molten Ni-W binary alloys increases with the increase of temperature and tungsten concentration. The partial molar volume of tungsten in liquid Ni-W binary alloy has been calculuted approximatelr as （ - 1.59 ＋ 5.64 × 10^-3 T） × 10^-6 m^3·mol^-1.展开更多
文摘The density of Ni-AI alloys in both liquid state and solid-liquid coexistence state was measured with a modified pycnometric method. It was found that the density of Ni-AI alloys decreases with increasing temperature and Al concentration in the alloys. The molar volume of liquid Ni-AI binary alloys increases with the increase of temperature and Al concentration. The partial molar volume of Al in Ni-AI binary alloy was calculated approximately. The molar volume of liquid Ni-AI alloy determined in the present work shows a negative deviation from the ideal linear molar volume.
文摘The density of molten Ni-Co-AI alloy was measured using a modified pycnometric method. It has been found that the density of the molten Ni-Co-AI alloy decreases with increasing temperature, Co concentration and the ratio of Co concentration to Ni concentration in the alloy. The coefficient of volume expansion of the molten Ni-Co-AI alloy decreases with increasing Co concentration and the ratio of Co concentration to Ni concentration. The temperature coefficient of density increases with increasing the Co concentration or the ratio of Co concentration to Ni concentration in the alloy. The density of the molten Ni-Co-AI alloy as functions of both temperature and Co concentration was expressed.
文摘The density of molten Ni-W alloys was measured with a nullified pycnometric method. It is fiund that the density of the molten Ni-W alloys decreases with temperature rising, but increases with the increase of tungsten concentrution in the alloys. The molar volume of molten Ni-W binary alloys increases with the increase of temperature and tungsten concentration. The partial molar volume of tungsten in liquid Ni-W binary alloy has been calculuted approximatelr as （ - 1.59 ＋ 5.64 × 10^-3 T） × 10^-6 m^3·mol^-1.
