J Mater Sci Technol ›› 2004, Vol. 20 ›› Issue (04): 405-410.

• Research Articles • Previous Articles     Next Articles

Density of Ni-Al Alloys in Liquid and Solid-Liquid Coexistence State Measured by a Modified Pycnometric Method

Liang FANG, Feng XIAO, Zushu LI, Zainan TAO   

  1. Department of Applied Physics, Chong Qing University, Chongqing 400044, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-07-28 Published:2009-10-10
  • Contact: Liang FANG1

Abstract: The density of Ni-Al 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-Al alloys decreases with increasing temperature and Al concentration in the alloys. The molar volume of liquid Ni-Al binary alloys increases with the increase of temperature and Al concentration. The partial molar volume of Al in Ni-Al binary alloy was calculated approximately. The molar volume of liquid Ni-Al alloy determined in the present work shows a negative deviation from the ideal linear molar volume.

Key words: Ni-Al alloy, Density, Modified pycnometric method, Molar volume, Aluminum