Probing the Nature of Divided Metals

1992 ◽  
Vol 272 ◽  
Author(s):  
Peter P. Edwards

ABSTRACTA review is given on the properties of metals which are neither quite macroscopic, nor microscopic in Nature. Both the geometric and electronic structure of such Divided Metals is discussed, with a special emphasis on recent studies of colloidal metal particles of the transition elements, Pd, Pt, Cu, Ag and Au.

1975 ◽  
Vol 46 (7) ◽  
pp. 2837-2840 ◽  
Author(s):  
Yuris A. Ekmanis ◽  
Elmer A. Rosauer

1989 ◽  
Vol 91 (1) ◽  
pp. 603-611 ◽  
Author(s):  
David J. Wales ◽  
Angus I. Kirkland ◽  
David A. Jefferson

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 967 ◽  
Author(s):  
Tong Zhang ◽  
Haiqing Yin ◽  
Cong Zhang ◽  
Ruijie Zhang ◽  
Xue Jiang ◽  
...  

For the purpose of exploring new hard materials and doping methods, the structural, mechanical and electronic properties of WCoB and W2CoB2 ternary boride were investigated with 0, 8.33, 16.67, 25 and 33.33 at.% V doping content and W2CoB2 with 0, 5, 10, 15 and 20 at.% V doping content by first-principle calculations. The cohesive energy, impurity formation energy and formation energy indicate the structural stability of V doped WCoB and W2CoB2. The elastic constants and mechanical properties imply that V doping leads to the decrement of shear modulus and the increment of ductility. Two different kinds of hardness models verify that V doping contributes to the decrement of hardness, which is closely related to shear modulus. The electronic structure is analyzed by DOS (density of states), PDOS (partial density of states) and charge density difference, which indicate the formation of weaker B–V covalent bonds, W–V and W–W metallic bonds lead to the decrement of mechanical properties. Compared with previous studies of Cr, Mn doped WCoB and W2CoB2, V doping leads to worse mechanical properties and hardness, indicating V may not be a suitable choice of doping transition elements.


1997 ◽  
Vol 66 (4) ◽  
pp. 281-300 ◽  
Author(s):  
Galina P Kostikova ◽  
Dimitrii V Korol'kov ◽  
Yury P Kostikov

1982 ◽  
Vol 68 (1-2) ◽  
pp. 137-141 ◽  
Author(s):  
H. Abe ◽  
K.P. Charlé ◽  
B. Tesche ◽  
W. Schulze

1982 ◽  
Vol 5 (3) ◽  
pp. 209-225 ◽  
Author(s):  
Magali Boutonnet ◽  
Jerzy Kizling ◽  
Per Stenius ◽  
Gilbert Maire

1995 ◽  
Vol 72 (4) ◽  
pp. 459-473 ◽  
Author(s):  
Isao Tanaka ◽  
Hirohiko Adachi

Nanoscale ◽  
2015 ◽  
Vol 7 (29) ◽  
pp. 12248-12265 ◽  
Author(s):  
Brian T. Sneed ◽  
Allison P. Young ◽  
Chia-Kuang Tsung

The focus on surface lattice strain in nanostructures as a fundamental research topic has gained momentum in recent years as scientists investigated its significant impact on the surface electronic structure and catalytic properties of nanomaterials.


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