ISSN:
1573-9066
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. A study was made, by the technique of electron probe microanalysis, of the character of the reaction in the system ZrB2-Ni. It is shown that zirconium diboride has a limited solubility (of the order of 0.6 wt. %) for nickel and that zirconium diboride, too, is soluble in a drop of nickel. 2. The effects were investigated of the thickness and composition of the surface oxide film on ZrB2 upon the character of the reaction in the system and the dissolution kinetics of the solid and liquid phase components. It was found that thick oxide films, having a defective structure, accelerate the diffusion of nickel into the boride phase. 3. The distribution of nickel in the diffusion zone was examined, and the limits of solubility of the metal in zirconium diboride were determined.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00792565
Permalink