Modeling of the structure and properties of oxygen vacancies in amorphous silica

2004 ◽  
Vol 70 (19) ◽  
Author(s):  
Sanghamitra Mukhopadhyay ◽  
Peter V. Sushko ◽  
A. Marshall Stoneham ◽  
Alexander L. Shluger
Keyword(s):  
Amorphous Silica ◽  
Oxygen Vacancies ◽  
Structure And Properties

Positive and Negative Oxygen Vacancies in Amorphous Silica

2019 ◽  
Vol 19 (2) ◽  
pp. 3-17 ◽  
Author(s):  
Anna Kimmel ◽  
Peter Sushko ◽  
Alexander Shluger ◽  
Gennadi Bersuker
Keyword(s):  
Amorphous Silica ◽  
Oxygen Vacancies

Structure and properties of defects in amorphous silica: new insights from embedded cluster calculations

2005 ◽  
Vol 17 (21) ◽  
pp. S2115-S2140 ◽  
Author(s):  
Peter V Sushko ◽  
Sanghamitra Mukhopadhyay ◽  
Andrey S Mysovsky ◽  
Vladimir B Sulimov ◽  
Adrian Taga ◽  
...  
Keyword(s):  
Amorphous Silica ◽  
Structure And Properties ◽  
Cluster Calculations

First-principles study of neutral oxygen vacancies in amorphous silica and germania

2004 ◽  
Vol 69 (19) ◽  
Author(s):  
Tomoyuki Tamura ◽  
Guang-Hong Lu ◽  
Ryoichi Yamamoto ◽  
Masanori Kohyama
Keyword(s):  
Amorphous Silica ◽  
First Principles ◽  
Oxygen Vacancies ◽  
First Principles Study

scholarly journals Diffusion and aggregation of oxygen vacancies in amorphous silica

2017 ◽  
Vol 29 (24) ◽  
pp. 245701 ◽  
Author(s):  
Manveer S Munde ◽  
David Z Gao ◽  
Alexander L Shluger
Keyword(s):  
Amorphous Silica ◽  
Oxygen Vacancies

scholarly journals Oxygen vacancies in amorphous silica: structure and distribution of properties

2005 ◽  
Vol 80 ◽  
pp. 292-295 ◽  
Author(s):  
P.V. Sushko ◽  
S. Mukhopadhyay ◽  
A.M. Stoneham ◽  
A.L. Shluger
Keyword(s):  
Amorphous Silica ◽  
Oxygen Vacancies

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

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