Bulk Diffusion of Niobium in Single-Crystal Titanium Dioxide

2007 ◽  
Vol 111 (28) ◽  
pp. 8126-8130 ◽  
Author(s):  
Leigh R. Sheppard ◽  
Armand J. Atanacio ◽  
Tadeusz Bak ◽  
Janusz Nowotny ◽  
Kathryn E. Prince
Keyword(s):  
Titanium Dioxide ◽  
Single Crystal ◽  
Bulk Diffusion

Surface and bulk diffusion of HDO on ultrathin single-crystal ice multilayers on Ru(001)

1998 ◽  
Vol 108 (5) ◽  
pp. 2197-2207 ◽  
Author(s):  
Frank E. Livingston ◽  
Galen C. Whipple ◽  
Steven M. George
Keyword(s):  
Single Crystal ◽  
Bulk Diffusion

Epitaxial TiN formation on rutile titanium dioxide (0 0 1) single crystal by nitridation

2020 ◽  
Vol 506 ◽  
pp. 144614 ◽  
Author(s):  
Thi Hien Do ◽  
Ching Chang ◽  
Lin-Lung Wei ◽  
Kun-An Chiu ◽  
Li Chang
Keyword(s):  
Titanium Dioxide ◽  
Single Crystal ◽  
Rutile Titanium Dioxide

The Use of Ceramics in Prosthetic Heart Valves

1987 ◽  
Vol 16 (2) ◽  
pp. 115-117 ◽  
Author(s):  
C R Gentle
Keyword(s):  
Titanium Dioxide ◽  
Single Crystal ◽  
Heart Valves ◽  
Prosthetic Heart Valves ◽  
Pyrolitic Carbon

A survey is carried out of how various ceramics have been used or considered as materials for prosthetic heartvalves. The ceramics include pyrolitic carbon, titanium dioxide, porous and fully dense alumina, and single crystal alumina. Particular attention is paid to the ability of some types of alumina to support a stable tissue covering which then camouflages them from further interactions with the blood.

Preparation and Characterization of Calcium Titanate (CaTiO3) Whiskers via Molten Salt Method

2012 ◽  
Vol 630 ◽  
pp. 89-92
Author(s):  
Yong Xing Zhang ◽  
Xue Ying Nai ◽  
Ming Wei ◽  
Dong Hai Zhu ◽  
Cheng Cai Zhu ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Single Crystal ◽  
Molten Salt ◽  
Calcium Chloride ◽  
Growth Mechanism ◽  
Calcium Titanate ◽  
Reaction Process ◽  
Molten Salt Method ◽  
Optimum Synthesis

Well dispersive and single crystal calcium titanate (CaTiO3) whisker with a length of 50-100μm was synthesized by sintering the mixture of calcium chloride and titanium dioxide with improvement of adding the mineralization agent of Pb(Ac)2.3H2O. The as-prepared samples were characterized by XRD, SEM. The optimum synthesis condition and the effect of the mineralization agent were discussed respectively. In the end, the possible reaction process was given and a LS growth mechanism was proposed.

Electromigration Lifetimes of Single Crystal Aluminum Lines with Different Crystallographic Orientations

1994 ◽  
Vol 338 ◽  
Author(s):  
Y.-C. Joo ◽  
C.V. Thompson
Keyword(s):  
Activation Energy ◽  
Single Crystal ◽  
Diffusion Mechanism ◽  
Failure Mechanisms ◽  
Bulk Diffusion ◽  
Time To Failure ◽  
Interface Diffusion ◽  
Test Conditions ◽  
Service Conditions ◽  
Crystallographic Orientations

ABSTRACTNear-bamboo interconnects are susceptible to failure either at polygranular clusters or within bamboo grains (transgranular failure). Polygranular failure mechanisms are often dominant in lines with near-bamboo structures at test conditions, but at service conditions, transgranular failure mechanisms are expected to dominate. In order to study the temperature and current density dependence as well as the crystallographic dependence of these transgranular failure mechanisms, it is necessary to isolate them from other mechanisms. To do this, we have studied single crystal Al lines on oxidized silicon.We have tested lifetimes of passivated and unpassivated Al single crystal lines with various textures. In both passivated and unpassivated lines, the median time to failure, t50, was found to be texture-dependent, with t50(l11) > t50(133) > t50(110), and with t50(111) ∼ 10×t50(110). The activation energy for failure for both passivated and unpassivated (110) single crystal lines was about 1 eV. This value differs from that of aluminum bulk diffusion (1.4 eV), suggesting that interface diffusion is the dominant diffusion mechanism in these lines, and perhaps in bamboo regions of near-bamboo lines as well.

Surface and Bulk Diffusion of H218O on Single-Crystal H216O Ice Multilayers

1996 ◽  
Vol 100 (38) ◽  
pp. 15460-15469 ◽  
Author(s):  
D. E. Brown ◽  
S. M. George
Keyword(s):  
Single Crystal ◽  
Bulk Diffusion
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