scholarly journals The Role of Grain Boundary Energy on Grain Boundary Complexion Transitions

2014 ◽  
Author(s):  
Stephanie A. Bojarski ◽  
Gregory S. Rohrer
Keyword(s):  
Grain Boundary ◽  
Boundary Energy ◽  
Grain Boundary Energy

The Role of Hydrogen in Silicon Microcrystallization

1989 ◽  
Vol 164 ◽  
Author(s):  
S. Wagner ◽  
S.H. Wolff ◽  
J.M. Gibson
Keyword(s):  
Electron Microscope ◽  
Molecular Beam Epitaxy ◽  
Grain Boundary ◽  
Molecular Beam ◽  
Boundary Energy ◽  
Substantial Reduction ◽  
Grain Boundary Energy ◽  
Transmission Electron ◽  
Crystallization Experiments

AbstractWe report and interpret two groups of experiments on the role that hydrogen plays in the formation of silicon microcrystals. We show that the growth of singlecrystal Si by molecular beam epitaxy at 475°C is disrupted by H2, which induces the formation of microcrystals. In crystallization experiments of non-hydrogenated a-Si and of hydrogenated a-Si:H on a hot stage in a transmission electron microscope, hydrogen facilitates the nucleation of crystallites. We explain our observations with a substantial reduction of the grain boundary energy by hydrogen.

The Role of Grain Boundary Energy in Texture Controlled Grain Growth

1992 ◽  
Vol 94-96 ◽  
pp. 391-398 ◽  
Author(s):  
I. Heckelmann ◽  
Giuseppe Carlo Abbruzzese ◽  
K. Lücke
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Boundary Energy ◽  
Grain Boundary Energy

The effect of excess neodymia on the grain growth of Nd1+xBa2−xCu3Oy solid solutions

1998 ◽  
Vol 13 (10) ◽  
pp. 2819-2832 ◽  
Author(s):  
Russell B. Rogenski ◽  
Kenneth H. Sandhage ◽  
Alexander L. Vasiliev ◽  
Eric P. Kvam
Keyword(s):  
Grain Size ◽  
Grain Boundary ◽  
Grain Growth ◽  
Boundary Energy ◽  
Grain Boundary Energy ◽  
Detectable Change ◽  
Fine Grained ◽  
Average Grain Size ◽  
Second Phases

The grain growth of dense, fine-grained Nd1+xBa2−xCu3Oy (x = 0.1−0.4) specimens has been examined in pure O2(g) at 938 °C and 967 °C. No detectable change in average grain size was observed for Nd1.4Ba1.6Cu3Oy within 72 h at 967 °C; however, a significant increase in average grain size developed between 18 and 24 h at 967 °C for Nd1.3Ba1.7Cu3Oy, and within 8−12 h at ≤967 °C for Nd1.2Ba1.8Cu3Oy and Nd1.1Ba1.9Cu3Oy. Microstructural analyses revealed that sudden changes in average grain size coincided with the formation of relatively large (abnormal) grains. A broadening of the grain size distribution was also observed. TEM analyses revealed that grain boundaries were free of second phases. The possible role of anisotropy in grain boundary energy and/or mobility on grain growth is discussed.

Role of inclination dependence of grain boundary energy on the microstructure evolution during grain growth

2020 ◽  
Vol 188 ◽  
pp. 641-651 ◽  
Author(s):  
Hesham Salama ◽  
Julia Kundin ◽  
Oleg Shchyglo ◽  
Volker Mohles ◽  
Katharina Marquardt ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Microstructure Evolution ◽  
Boundary Energy ◽  
Grain Boundary Energy

Grain boundary energy in /φ Pure Ice Bicrystals Samples

2021 ◽  
pp. 111094
Author(s):  
C.L. Di Prinzio ◽  
D. Stoler ◽  
Aguirre Varela ◽  
E. Druetta
Keyword(s):  
Grain Boundary ◽  
Boundary Energy ◽  
Grain Boundary Energy

Dihedral angles in Cu–1wt.% Pb: Grain boundary energy and grain boundary triple line effects

2009 ◽  
Vol 57 (8) ◽  
pp. 2527-2537 ◽  
Author(s):  
D. Empl ◽  
L. Felberbaum ◽  
V. Laporte ◽  
D. Chatain ◽  
A. Mortensen
Keyword(s):  
Grain Boundary ◽  
Boundary Energy ◽  
Triple Line ◽  
Dihedral Angles ◽  
Grain Boundary Energy ◽  
Boundary Triple
Sign in / Sign up

Export Citation Format

Share Document