The behavior of lithium atoms on the faces of single crystals of bcc refractory metals

1971 ◽  
Vol 14 (12) ◽  
pp. 1734-1736 ◽  
Author(s):  
K. Zh. Zhanabergenov
Keyword(s):  
Single Crystals ◽  
Refractory Metals

scholarly journals MANUFACTURE OF SUPER LARGE TUNGSTEN SINGLE CRYSTALS IN THE FORM OF ROTATION BODIES

2020 ◽  
pp. 60-63
Author(s):  
V.O. Shapovalov ◽  
Yu.O. Nikitenko ◽  
V.V. Yakusha ◽  
O.M. Gnizdylo ◽  
I.V. Sheiko
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Refractory Metals ◽  
Large Single Crystal ◽  
Electric Welding ◽  
Material Studies ◽  
Further Development ◽  
Technology Of Production ◽  
Rotating Bodies

The results of researches made at creation of technology of production of super-large single crystals of tungsten in the form of plates and bodies of rotation are presented. In E.O. Paton Electric Welding Institute NAS of Ukraine created a unique technology for the production of single crystals of refractory metals in the form of plates 170x160x20 mm, worked out the technology and conducted material studies, which confirmed their quality and gave the basis for further development in this direction. In recent years, the technology of growing super-large single-crystal tungsten in the form of rotating bodies with a diameter of 85 mm has been created.

scholarly journals Mathematical Model Of Plasma-induction Process For Growing Single Crystals Of Refractory Metals

2018 ◽  
Vol 2018 (1) ◽  
pp. 28-36
Author(s):  
A.N. Gnizdylo ◽  
◽  
V.V. Yakusha ◽  
V.A. Shapovalov ◽  
O.V. Karuskevich ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Single Crystals ◽  
Refractory Metals ◽  
Induction Process

LEEM Investigation of Refractory Metals Grown on Insulating Substrates: Nb (110) on Sapphire $(11\bar{2}0)$

1998 ◽  
Vol 05 (06) ◽  
pp. 1221-1231 ◽  
Author(s):  
W. Świȩch ◽  
R. S. Appleton ◽  
B. D. Wiemeyer ◽  
C. P. Flynn
Keyword(s):  
Single Crystals ◽  
Low Temperatures ◽  
Refractory Metals ◽  
Surface Processes ◽  
Strain Fields ◽  
Insulating Substrates

We summarize LEEM studies of Nb (110) single crystals grown by MBE on Al 2 O 3[Formula: see text]. At temperatures between 1300 K and 1600 K the structure relaxes to create flat terraces several μm wide, and stable subgrain boundaries, by clearly visible interfacial and surface processes. The Nb surface exhibits two mirror-equivalent variants of a reconstruction, one of which prevails at low temperatures. Upon approaching Tc at ~1480 K, the two variants alternate in extended stripes along [Formula: see text], with stripe widths that decrease smoothly as T approaches Tc. Both at low T and above Tc, variants are trapped at dislocation strain fields.

Sign in / Sign up

Export Citation Format

Share Document