Lu-V-{Ge, Sn} ternary systems
<p>The isothermal sections of the phase diagrams of the Lu–V–Ge and Lu-V-Sn ternary systems were constructed at 870 K over the whole concentration range using X-ray diffraction and EPM analyses. In the Lu-V-Ge system a formation of the substitutional solid solution Lu<sub>5</sub>Ge...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Vasyl Stefanyk Precarpathian National University
2019-04-01
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| Series: | Фізика і хімія твердого тіла |
| Subjects: | |
| Online Access: | http://journals.pu.if.ua/index.php/pcss/article/view/3456 |
| Summary: | <p>The isothermal sections of the phase diagrams of the Lu–V–Ge and Lu-V-Sn ternary systems were constructed at 870 K over the whole concentration range using X-ray diffraction and EPM analyses. In the Lu-V-Ge system a formation of the substitutional solid solution Lu<sub>5</sub>Ge<sub>3-</sub><em><sub>x</sub></em>V<em><sub>x</sub></em> based on the Lu<sub>5</sub>Ge<sub>3</sub> binary compound (Mn<sub>5</sub>Si<sub>3</sub> structure type) was found up to 6 at. % V. Insertion of the V atoms in the structure of the LuGe<sub>2</sub> binary germanide (ZrSi<sub>2</sub> structure type, up to 5 aт. % V) results in the formation of the LuV<sub>0,15</sub>Ge<sub>2</sub> ternary phase (CeNiSi<sub>2</sub> structure type, space group <em>Cmcm</em>, <em>a</em>=0.40210(4),<em> </em><em>b</em>=1.5661(1), <em>c</em>=0.38876(3) nm), which corresponds to the limit composition of the interstitial solid solution LuV<em><sub>x</sub></em>Ge<sub>2</sub>. The interaction between the elements in the Lu-V-Sn system results in the formation of one ternary compound LuV<sub>6</sub>Sn<sub>6</sub> (SmMn<sub>6</sub>Sn<sub>6</sub>-type,<em> </em>space group <em>P</em>6/<em>mmm</em>, <em>a</em>=0.5503(2), <em>c</em>=0.9171(4) nm) at investigated temperature.</p> |
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| ISSN: | 1729-4428 2309-8589 |