Determination of Gibbs Energy of Formation of Molybdenum-Boron Binary System by Electromotive Force Measurement Using Solid Electrolyte

被引：5

作者：

Yamamoto, Hiroaki ^{[1
]}

Morishita, Masao ^{[1
]}

Yamamoto, Takeo ^{[1
]}

Furukawa, Kazuma ^{[1
]}

机构：

[1] Univ Hyogo, Dept Mat Sci & Chem, Grad Sch Engn, Himeji, Hyogo 6712280, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2011年 / 42卷 / 01期

关键词：

NI-NIMO2B2 2-PHASE ALLOY; NI-BASED ALLOY; B-O SYSTEM; CORROSION-RESISTANCE; THERMODYNAMIC PROPERTIES; AQUEOUS-SOLUTION; EMF-MEASUREMENT; CU ADDITION; CR;

D O I：

10.1007/s11663-010-9450-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The standard Gibbs energies of formation of Mo(2)B, alpha MoB, Mo(2)B(5), and MoB(4) in the molybdenum-boron binary system were determined by measuring electromotive forces of galvanic cells using an Y(2)O(3)-stabilized ZrO(2) solid oxide electrolyte. The results are as follows: Delta(f)G degrees (Mo(2)B)/J mol(-1) = -193100 + 44.10T +/- 700(1198 K to 1323 K(925 degrees C to 1050 degrees C)) Delta(f)G degrees (alpha MoB)/J mol(-1) = -164000 + 26.45T +/- 700(1213 K to 1328 K(940 degrees C to 1055 degrees C)) Delta(f)G degrees (Mo(2)B(5))/J mol(-1) = -622500 + 117.0T +/- 3000(1205 K to 1294 K(932 degrees C to 1021 degrees C)) Delta(f)G degrees (MoB(4))/J mol(-1) = -387300 + 93.53T +/- 3000(959 K to 1153 K(686 degrees C to 880 degrees C)) where the standard pressure is 1 bar (100 kPa).

引用

页码：114 / 120

页数：7

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