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Prediction of solid solubility in alloys. Application to noble metal based alloys

✍ Scribed by J.A. Alonso; J.M. López; S. Simozar; L.A. Girifalco

Publisher
Elsevier Science
Year
1982
Weight
387 KB
Volume
30
Category
Article
ISSN
0001-6160

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✦ Synopsis

new empirical method proposed recently by two of the authors for the analysis of solid solubility in alloys. is applied here to the case of noble metal based alloys. In this method. each chemical element is characterized by three parameters: The atomic radius R,,.. the electronegativity 4 and the electron density at the boundary of bulk atomic cells. ?I~ AC#I and An,, (A indicates the difference between solute and solvent) are combined into a new parameter. the Heat of Formation AH, of an equiatomic compound. This is done by using the semiempirical Theory of Miedema. Then. the two parameters AH, and ARW are used to construct a two dimensional map. In this map. contours of different degrees of solubility can be successfully drawn.

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