On the formation of the Gd3Ru4Al12versus the Y2Co3Ga9 type structure – M3Rh4Al12 (M = Ca, Eu) versus M2T3Al9 (M = Ca, Sr, Eu, Yb; T = Ir, Pt)

2020 ◽  
Vol 49 (19) ◽  
pp. 6398-6406
Author(s):  
Frank Stegemann ◽  
Yuemei Zhang ◽  
Boniface P. T. Fokwa ◽  
Oliver Janka

Structure, bonding and stability investigations of seven new ternary alkaline-earth transition metal aluminum intermetallics.

2021 ◽  
Author(s):  
Bin Huo ◽  
Rui Sun ◽  
Bo Jin ◽  
Lingfei Hu ◽  
Jian-Hong Bian ◽  
...  

We predicted the stable alkaline earth complexes M(Cp)3– (M = Ca, Sr, Ba; Cp = cyclopentadienyl), where the M centers were in their stable +2 oxidation state and mimicked the...


2005 ◽  
Vol 502 ◽  
pp. 81-86 ◽  
Author(s):  
Yukio Makino

Hardness of the pseudobinary transition metal aluminum nitride (T-Al-N) films is improved with increasing the AlN content as far as the B1structure is maintained. A drastic change in the compositional dependence of the hardness corresponds to the phase change of the pseudobinary nitride from B1(NaCl) to B4(wurtzite) structure. Predicted value of AlN content for the drastic change agrees with the AlN content determined experimentally. Hardness of various T-Al-N films was closely correlated with the bulk modulus calculated from interatomic distance based on the power functional formula. The improvement of hardness is attributed to the inherent increase of bulk modulus due to dissolution of AlN into transition metal nitride.


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