A Method of Analysis of Diffusion Data of High-Temperature Melt Obtained by the Diffusion-Couple Technique

Diffusion and solubility of sulphur have important effects on the degassing of silicate melts. Both properties are closely related to the structural incorporation of sulphur in the melt. Depending on the oxygen fugacity, sulphur can be present as sulphide (S2-), sulphite (S4+) or sulphate (S6+). Sulphates play an important role in the industrial production of glasses especially in the fining process. The decomposition products of sulphate amass in bubbles which ascend and homogenize the melt. Structural incorporation of sulphur in glasses is studied by XANES (X-ray Absorption Near Edge Spectroscopy). Diffusion of sulphur is investigated in simple silicate systems using the diffusion couple technique. First diffusion profiles were measured in sodium trisilicate glasses by electron microprobe. The results indicate that sulphur diffusivity in high temperature melts is close to the Eyring diffusivity calculated from viscosity data.

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Novel Ge-Sb-Te thermoelectric materials: A demonstration for an efficient diffusion couple technique in expediently exploiting new thermoelectric materials

Ceramics International ◽

10.1016/j.ceramint.2019.05.119 ◽

2019 ◽

Vol 45 (13) ◽

pp. 16039-16045 ◽

Cited By ~ 1

Author(s):

Jian Zhang ◽

Yonggao Yan ◽

Hongyao Xie ◽

Ting Zhu ◽

Cheng Zhang ◽

...

Keyword(s):

Diffusion Couple ◽

Thermoelectric Materials ◽

Efficient Diffusion ◽

Diffusion Couple Technique

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Intrinsic nano-diffusion-couple for studying high temperature diffusion in multi-component superalloys

Scripta Materialia ◽

10.1016/j.scriptamat.2020.10.002 ◽

2021 ◽

Vol 192 ◽

pp. 120-124

Author(s):

Yolita M. Eggeler ◽

Dorota Kubacka ◽

Peter Pichler ◽

Mingjian Wu ◽

Erdmann Spiecker

Keyword(s):

High Temperature ◽

Diffusion Couple ◽

Temperature Diffusion

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23. Applications of Diffusion Data to High-Temperature Earth Systems

Diffusion in Minerals and Melts ◽

10.1515/9781501508394-024 ◽

2010 ◽

pp. 997-1038

Author(s):

Thomas Mueller ◽

E. Bruce Watson ◽

T. Mark Harrison

Keyword(s):

High Temperature ◽

Diffusion Data ◽

Earth Systems

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Interdiffusion in Nb-Mo, Nb-Ti and Nb-Zr Systems

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.323-325.491 ◽

2012 ◽

Vol 323-325 ◽

pp. 491-496 ◽

Cited By ~ 3

Author(s):

Soma Prasad ◽

Aloke Paul

Keyword(s):

Activation Energy ◽

Diffusion Coefficient ◽

Diffusion Couple ◽

Impurity Diffusion ◽

Impurity Diffusion Coefficient ◽

Different Temperatures ◽

Diffusion Couple Technique ◽

Interdiffusion Coefficients

Diffusion couple technique is used to study interdiffusion in Nb-Mo, Nb-Ti and Nb-Zr systems. Interdiffusion coefficients at different temperatures and compositions are determined using the relation developed by Wagner. The change in activation energy for interdiffusion with composition is determined. Further, impurity diffusion coefficient of the species are determined and compared with the available data in literature.

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