-
1
The Kinetic Peculiarities of the Nanocrystallization of Amorphous Alloys Fe<sub>84</sub>Nb<sub>2</sub>B<sub>14</sub>, which are Doped by Rare Earth Metals
Published 2018-01-01“…The Avrami constant was found to be 1.86 for Fe</span><sub>84</sub><span>Nb</span><sub>2</sub><span>B</span><sub>14</sub><span> at 703 K, 1.17 for Fe<sub>82</sub>Nb<sub>2</sub>B<sub>14</sub>Y<sub>2</sub> at 813 K, 1.36 for Fe</span><sub>82</sub><span>Nb</span><sub>2</sub><span>B</span><sub>14</sub><span>Gd</span><sub>2</sub><span> at 808 K, 1.76 for Fe</span><sub>82</sub><span>Nb</span><sub>2</sub><span>B</span><sub>14</sub><span>Tb</span><sub>2</sub><span> at 808 K and 1.92 for Fe</span><sub>82</sub><span>Nb</span><sub>2</sub><span>B</span><sub>14</sub><span>Dy</span><sub>2</sub><span> at 808 K. Two-dimensional diffusion controlled growth mechanism with decreasing nucleation rate was observed in the alloys. …”
Get full text
Article -
2
Authigenic rhabdophane from brown iron ore of the oxidation zone of the Babaryk massive sulfide occurrence (South Urals): scanning electron microscope (SEM) and electron backscatt...
Published 2021-10-01“…<p>Rhabdophane (Ce<span class="inline-formula"><sub>0.34−0.43</sub></span>Nd<span class="inline-formula"><sub>0.13−0.14</sub></span>Ca<span class="inline-formula"><sub>0.06−0.29</sub></span>La<span class="inline-formula"><sub>0.08−0.11</sub></span>Y<span class="inline-formula"><sub>0.05−0.12</sub></span>Pr<span class="inline-formula"><sub>0.03−0.05</sub></span>Sm<span class="inline-formula"><sub>0.02−0.05</sub></span>Gd<span class="inline-formula"><sub>0.02−0.05</sub></span>Fe<span class="inline-formula"><sub>0−0.04</sub></span>Dy<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M10" display="inline" overflow="scroll" dspmath="mathml"><mrow><msub><mi/><mrow><mn mathvariant="normal">0.00</mn><mo>-</mo><mn mathvariant="normal">0.01</mn></mrow></msub><msub><mo>)</mo><mrow><mn mathvariant="normal">0.97</mn><mo>-</mo><mn mathvariant="normal">1.01</mn></mrow></msub></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="80pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="ab54368e4dabe72638a100874cc8de52"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="ejm-33-605-2021-ie00001.svg" width="80pt" height="13pt" src="ejm-33-605-2021-ie00001.png"/></svg:svg></span></span>((P<span class="inline-formula"><sub>0.69−0.96</sub></span>S<span class="inline-formula"><sub>0.04−0.31</sub>)<sub>1.00</sub></span>O<span class="inline-formula"><sub>4</sub>)</span>⚫H<span class="inline-formula"><sub>2</sub></span>O is found in a Fe<span class="inline-formula"><sup>3+</sup></span>-oxyhydroxide nodule (brown iron ore) collected from the upper part of the oxidation profile of the Babaryk massive sulfide occurrence (South Urals, Russia) at a 1.6 m depth. …”
Get full text
Article -
3
Mckelveyite group minerals – Part 4: Alicewilsonite-(YLa), Na<sub>2</sub>Sr<sub>2</sub>YLa(CO<sub>3</sub>)<sub>6</sub>  ⋅  3H<sub>2</sub>O, a new lanthanum-dominant s...
Published 2024-03-01“…The empirical formula calculated on the basis of six cations with 3 H<span class="inline-formula"><sub>2</sub></span>O molecules is as follows: Na<span class="inline-formula"><sub>2.10</sub></span>Ca<span class="inline-formula"><sub>0.31</sub></span>Sr<span class="inline-formula"><sub>1.56</sub></span>Ba<span class="inline-formula"><sub>0.10</sub></span>Y<span class="inline-formula"><sub>0.74</sub></span>La<span class="inline-formula"><sub>0.63</sub></span>Pr<span class="inline-formula"><sub>0.07</sub></span> Nd<span class="inline-formula"><sub>0.30</sub></span>Sm<span class="inline-formula"><sub>0.03</sub></span>Eu<span class="inline-formula"><sub>0.01</sub></span>Gd<span class="inline-formula"><sub>0.04</sub></span>Dy<span class="inline-formula"><sub>0.05</sub></span>Ho<span class="inline-formula"><sub>0.01</sub></span>Er<span class="inline-formula"><sub>0.04</sub></span> Yb<span class="inline-formula"><sub>0.01</sub></span>(CO<span class="inline-formula"><sub>3</sub></span>)<span class="inline-formula"><sub>5.92</sub></span>(H<span class="inline-formula"><sub>2</sub></span>O)<span class="inline-formula"><sub>3</sub></span>. …”
Get full text
Article -
4
Mckelveyite group minerals – Part 3: Bainbridgeite-(YCe), Na<sub>2</sub>Ba<sub>2</sub>YCe(CO<sub>3</sub>)<sub>6</sub>  ⋅  3H<sub>2</sub>O, a new species from Mont Sai...
Published 2024-02-01“…The empirical formula of the holotype calculated on the basis of six cations is as follows: Na<span class="inline-formula"><sub>2.11</sub></span>Ca<span class="inline-formula"><sub>0.10</sub></span>Sr<span class="inline-formula"><sub>0.37</sub></span>Ba<span class="inline-formula"><sub>1.60</sub></span>Y<span class="inline-formula"><sub>0.70</sub></span>La<span class="inline-formula"><sub>0.29</sub></span>Ce<span class="inline-formula"><sub>0.49</sub></span>Pr<span class="inline-formula"><sub>0.03</sub></span>Nd<span class="inline-formula"><sub>0.11</sub></span>Sm<span class="inline-formula"><sub>0.01</sub></span>Gd<span class="inline-formula"><sub>0.03</sub></span>Dy<span class="inline-formula"><sub>0.07</sub></span>Ho<span class="inline-formula"><sub>0.02</sub></span>Er<span class="inline-formula"><sub>0.05</sub></span> Yb<span class="inline-formula"><sub>0.02</sub></span>(CO<span class="inline-formula"><sub>3</sub></span>)<span class="inline-formula"><sub>5.86</sub></span>(H<span class="inline-formula"><sub>2</sub></span>O)<span class="inline-formula"><sub>3.00</sub></span>. …”
Get full text
Article -
5
Mckelveyite group minerals – Part 2: Alicewilsonite-(YCe), Na<sub>2</sub>Sr<sub>2</sub>YCe(CO<sub>3</sub>)<sub>6</sub>  ⋅  3H<sub>2</sub>O, a new species
Published 2023-02-01“…The empirical formula of the holotype calculated on the basis of six cations is Na<span class="inline-formula"><sub>2.11</sub></span>Ca<span class="inline-formula"><sub>0.11</sub></span>Sr<span class="inline-formula"><sub>1.83</sub></span>Ba<span class="inline-formula"><sub>0.08</sub></span>Y<span class="inline-formula"><sub>0.67</sub></span>(Ce<span class="inline-formula"><sub>0.51</sub></span>La<span class="inline-formula"><sub>0.32</sub></span>Pr<span class="inline-formula"><sub>0.03</sub></span>Nd<span class="inline-formula"><sub>0.09</sub></span>Sm<span class="inline-formula"><sub>0.02</sub></span>Gd<span class="inline-formula"><sub>0.04</sub></span> Dy<span class="inline-formula"><sub>0.08</sub></span>Ho<span class="inline-formula"><sub>0.02</sub></span>Er<span class="inline-formula"><sub>0.06</sub></span>Yb<span class="inline-formula"><sub>0.03</sub>)<sub>Σ1.20</sub></span>(CO<span class="inline-formula"><sub>3</sub>)<sub>5.88</sub></span> (H<span class="inline-formula"><sub>2</sub></span>O)<span class="inline-formula"><sub>3.00</sub></span>. …”
Get full text
Article