Change in lattice parameter of tantalum due to dissolved hydrogen
Abstrak
The volume expansion of tantalum due to the dissolved hydrogen has been determined using Bragg equation. The hydrogen was dissolved in the pure tantalum metal at constant temperature (360 °C) and constant pressure (132 mbar) by varying the duration of hydrogen charging. The amount of dissolved hydrogen was within the solid solubility limit. The samples with different hydrogen concentration were analyzed by X-ray diffraction technique. Slight peak shifts as well as peak broadening were observed. The relative changes of lattice parameters plotted against the hydrogen concentration revealed that the lattice parameters varied linearly with the hydrogen concentration.
Topik & Kata Kunci
Penulis (5)
Gyanendra P. Tiwari
Ashok K. Suri
Nagaiyar Krishnamurthy
Sanjay Kumar
Manju Taxak
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- 2012
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