Correction: Vidal-Crespo et al. Mechanical Amorphization and Recrystallization of Mn-Co(Fe)-Ge Compositions. Metals 2019, 9, 534

Text Correction

There was an error in the original publication [1]; silicon element was not present in the compositions studied. A correction has been made to the following affected sections, correcting the composition by changing the incorrect MnCo_0.8Fe_0.2Ge_0.5Si_0.5 to the correct MnCo_0.8Fe_0.2Ge_0.5 where needed.

In the Title, “Mn-Co(Fe)-Ge(Si) Compositions” has been corrected to “Mn-Co(Fe)-Ge Compositions”.

In the Abstract, the sentence “Mechanical alloying using a planetary ball mill allowed us to obtain two homogeneous systems formed by units with nanometer size and MnCo_0.8Fe_0.2Ge_1−xSi_x stoichiometry (x = 0 and 0.5).” has been corrected to “Mechanical alloying using a planetary ball mill allowed us to obtain two homogeneous systems formed by units with nanometer size and MnCo_0.8Fe_0.2Ge_1−x stoichiometry (x = 0 and 0.5).” and “However, while the presence of Si stabilized the Mn-type phase, mechanical recrystallization was observed in a Si-free composition leading to the formation of a MnCo(Fe)Ge intermetallic (Pnma space group) with a crystal size of 7 ± 1 nm.” has been corrected to “However, while the higher Ge content stabilized the Mn-type phase, mechanical recrystallization was observed in a lower Ge content composition leading to the formation of a MnCo(Fe)Ge intermetallic (Pnma space group) with a crystal size of 7 ± 1 nm.”

In Section 1, paragraph 3, “MnCo_0.8Fe_0.2Ge_1−xSi_x” has been corrected to “MnCo_0.8Fe_0.2Ge_1−x”.

In Section 2, “Si (99.9%, Alfa Aesar, Karlsruhe, Germany)” has been deleted.

In Section 3.1, paragraph 1, the sentence “These patterns can be fitted using the Rietveld method assuming the different starting pure phases, except for Si (the lightest among the studied elements), which is not detected even after 1 h milling, indicating its integration to the other phases.” has been corrected to “These patterns can be fitted using the Rietveld method assuming the different starting pure phases.”

In Section 3.1, paragraph 3, “mainly Co and Si” has been corrected to “mainly Co”, “Si content” has been corrected to “Ge content”, “Si-free alloy” has been corrected to “higher Ge content alloy”, and “Si-containing alloy” has been corrected to “lower Ge content alloy”.

In Section 3.1, paragraph 4, “Si-free alloy” has been corrected to “higher Ge content alloy”, and “Si-containing alloy” has been corrected to “lower Ge content alloy”.

In Section 3.1, paragraph 5, “without and with Si” has been corrected to “with x = 1 and 0.5”, “the presence of Si” has been changed to “a lower Ge content”, and “Si-free composition” has been corrected to “higher Ge content composition”.

In Section 4, paragraph 1, “Si-free alloys” has been corrected to “higher Ge content alloys”, and “Si-free samples” has been corrected to “higher Ge content samples”

In Section 4, paragraph 2, “Si-containing sample” has been corrected to “lower Ge content sample”.

In Section 4, paragraph 3, “Si-containing alloy” has been corrected to “lower Ge content alloy”.

In Section 4, paragraph 4, “such as Si and Ge” has been corrected to “such as Ge”, and “For Si and Ge, ∆H^trans of 34 or 25 kJ/mol [13], respectively.” to “For Ge, ∆H^trans = 25 kJ/mol [13], respectively.”

In Section 4, paragraph 6, the sentences “Taking the values of $r_i$and $∆H_{mix}^{ij}$ from [6,13], the results for the quinary composition are $∆H_{mix}$ = −33 kJ/mol, δ = 5.4% and $\Omega$ = 0.60. While the quaternary composition has $∆H_{mix}$ = −25 kJ/mol, δ = 3.9% and $\Omega$ = 0.64.” has been corrected to “Taking the values of $r_i$ and $∆H_{mix}^{ij}$ from [6,13], the results for the lower Ge content composition are $∆H_{mix}$ = −19 kJ/mol, δ = 4.0% and $\Omega$ = 0.85. While the higher Ge content composition has $∆H_{mix}$ = −25 kJ/mol, δ = 3.9% and $\Omega$ = 0.64.”, and “quinary composition” has been corrected to “lower Ge content”.

In Section 4, paragraph 8, “Si-free alloy” has been corrected to “higher Ge content”, “Si-containing alloy” has been corrected to “lower Ge content”, and “Si-free and Si-containing alloy” has been corrected to “higher and lower Ge content alloy”.

In Section 5, paragraph 1, “MnCo_0.8Fe_0.2(Ge_1−xSi_x)” has been corrected to “MnCo_0.8Fe_0.2Ge_1−x”.

In Section 5, paragraph 2, “Si-free alloy” has been corrected to “higher Ge content”.

In Section 5, paragraph 3, “Si-containing alloy” has been corrected to “lower Ge content”.

Error in Figure/Table

In the original publication, there were mistakes in Figures 1 and 7, and in the legend for Figures 1–7 as published. “MnFe_0.2Co_0.8Ge_0.5Si_0.5” has been corrected to “MnFe_0.2Co_0.8Ge_0.5” in Figure 1 and Figure 7. “Si-free alloy” has been corrected to “higher Ge content”, and “Si-containing alloy” has been corrected to “lower Ge content composition” in the legend for Figures 1–7. The corrected Figure 1 and Figure 7, and legend for Figures 1–7 appear below.

• Figure 2. Phase fraction from XRD Rietveld analysis as a function of the milling time: (a) higher Ge content (b) lower Ge content. Lines are a guide to the eye.
• Figure 3. Crystal size from XRD Rietveld analysis as a function of the milling time: (a) higher Ge content (b) lower Ge content.
• Figure 4. Room temperature Mössbauer spectra as a function of the milling time of: (a) higher Ge content and (b) lower Ge content samples.
• Figure 5. DSC scans at 20 K/min for: (a) higher Ge content alloy after 50 and 100 h milling (b) lower Ge content alloy after 100 h milling.
• Figure 6. XRD patterns of samples milled for 100 h and heated up to 973 K at 20 K/min: (a) higher Ge content alloy (b) lower Ge content alloy. Circles identify intermetallic phase, diamonds identify bcc solid solution and asterisks identify MnO phase. The experimental data are in black and the fitting in red. Corresponding differences between the experimental and fitting curves are shown below each experimental pattern.

Figure 7. Amorphous fraction from XRD Rietveld analysis as a function of PM contribution from MS for higher Ge content alloy (in red) and lower Ge content alloy (in blue). Numbers indicate the milling time in hours for each composition.

Figure 7. Amorphous fraction from XRD Rietveld analysis as a function of PM contribution from MS for higher Ge content alloy (in red) and lower Ge content alloy (in blue). Numbers indicate the milling time in hours for each composition.

Headers in Tables 1 and 2 have been changed from “Si Free” to “Higher Ge Content” and from “Si-Containing” to “Lower Ge Content Composition”.

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.