Determination of gibbs energy of formation of Ni-B-O system by electromotive force measurement using solid electrolyte

Author： Yamamoto Hiroaki   Morishita Masao   Miyata Akio   Koyama Koichiro  

Publisher： Springer Publishing Company

ISSN： 1543-1916

Source： Metallurgical and Materials Transactions B, Vol.37, Iss.4, 2006-08, pp. : 607-613

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Abstract

The standard Gibbs energies of formation of Ni3B, Ni2B, o-Ni4B3(Ni0.586B0.414), m-Ni4B3(Ni0.564B0.436), NiB, and Ni3B2O6 of the Ni-B-O system have been determined by measuring electromotive forces of galvanic cells using a Y2O3-stabilized ZrO2 solid oxide electrolyte. The results are as follows: Temperature range: 1198 to 1298 K Temperature range: 1182 to 1285 K Temperature range: 1193 to 1273 K Temperature range: 1193 to 1273 K Temperature range: 1203 to 1253 K Temperature range: 1182 to 1393 K where the standard pressure is 1 bar (100 kPa).

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