Temperature-dependent Ta hydride formation for recycling of Ta scraps: Experimental and thermodynamic investigations

Kyoung Tae Park; Ji Hwan Park; Jin Ho Yoon; Ji Eun Lee; Il Kyu Park

doi:10.1016/j.ijrmhm.2016.11.011

Temperature-dependent Ta hydride formation for recycling of Ta scraps: Experimental and thermodynamic investigations

Kyoung Tae Park, Ji Hwan Park, Jin Ho Yoon, Ji Eun Lee, Il Kyu Park

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We report on the theoretical and experimental investigations about the Ta-hydride formation depending on the temperature for recycling of Ta scraps. The structural investigations based on scanning electron microscope and X-ray diffraction (XRD) showed that the amount of hydrogen incorporated into the Ta matrix varied with hydridation temperature. The XRD measurement showed that the H/Ta mole ratio in Ta-hydride increased with increasing the hydridation temperature up to 700 °C and then decreased with increasing the temperature furthermore. Depending on the hydridation temperature, various phase of Ta-hydride, such as TaH_0.93 and Ta₂H were formed and this hydride process was verified by thermodynamic analysis.

Original language	English
Pages (from-to)	83-87
Number of pages	5
Journal	International Journal of Refractory Metals and Hard Materials
Volume	65
DOIs	https://doi.org/10.1016/j.ijrmhm.2016.11.011
State	Published - 1 Jun 2017

Keywords

Dehydride
Hydride
Recycling
Tantalum
Thermodynamics

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10.1016/j.ijrmhm.2016.11.011

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title = "Temperature-dependent Ta hydride formation for recycling of Ta scraps: Experimental and thermodynamic investigations",

abstract = "We report on the theoretical and experimental investigations about the Ta-hydride formation depending on the temperature for recycling of Ta scraps. The structural investigations based on scanning electron microscope and X-ray diffraction (XRD) showed that the amount of hydrogen incorporated into the Ta matrix varied with hydridation temperature. The XRD measurement showed that the H/Ta mole ratio in Ta-hydride increased with increasing the hydridation temperature up to 700 °C and then decreased with increasing the temperature furthermore. Depending on the hydridation temperature, various phase of Ta-hydride, such as TaH0.93 and Ta2H were formed and this hydride process was verified by thermodynamic analysis.",

keywords = "Dehydride, Hydride, Recycling, Tantalum, Thermodynamics",

author = "Park, \{Kyoung Tae\} and Park, \{Ji Hwan\} and Yoon, \{Jin Ho\} and Lee, \{Ji Eun\} and Park, \{Il Kyu\}",

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T1 - Temperature-dependent Ta hydride formation for recycling of Ta scraps

T2 - Experimental and thermodynamic investigations

AU - Park, Kyoung Tae

AU - Park, Ji Hwan

AU - Yoon, Jin Ho

AU - Lee, Ji Eun

AU - Park, Il Kyu

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We report on the theoretical and experimental investigations about the Ta-hydride formation depending on the temperature for recycling of Ta scraps. The structural investigations based on scanning electron microscope and X-ray diffraction (XRD) showed that the amount of hydrogen incorporated into the Ta matrix varied with hydridation temperature. The XRD measurement showed that the H/Ta mole ratio in Ta-hydride increased with increasing the hydridation temperature up to 700 °C and then decreased with increasing the temperature furthermore. Depending on the hydridation temperature, various phase of Ta-hydride, such as TaH0.93 and Ta2H were formed and this hydride process was verified by thermodynamic analysis.

AB - We report on the theoretical and experimental investigations about the Ta-hydride formation depending on the temperature for recycling of Ta scraps. The structural investigations based on scanning electron microscope and X-ray diffraction (XRD) showed that the amount of hydrogen incorporated into the Ta matrix varied with hydridation temperature. The XRD measurement showed that the H/Ta mole ratio in Ta-hydride increased with increasing the hydridation temperature up to 700 °C and then decreased with increasing the temperature furthermore. Depending on the hydridation temperature, various phase of Ta-hydride, such as TaH0.93 and Ta2H were formed and this hydride process was verified by thermodynamic analysis.

KW - Dehydride

KW - Hydride

KW - Recycling

KW - Tantalum

KW - Thermodynamics

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DO - 10.1016/j.ijrmhm.2016.11.011

M3 - Article

AN - SCOPUS:85007574557

SN - 0263-4368

VL - 65

SP - 83

EP - 87

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

ER -

Temperature-dependent Ta hydride formation for recycling of Ta scraps: Experimental and thermodynamic investigations

Abstract

Keywords

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