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
收藏
页码：114 / 120
页数：7
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