scholarly journals Crystallographic orientation-dependent growth mode of microstructurally fatigue small crack in a laminated Ti–6Al–4V alloy

2018 ◽  
Vol 13 ◽  
pp. 694-699 ◽  
Author(s):  
Akira Maenosono ◽  
Motomichi Koyama ◽  
Yoshihisa Tanaka ◽  
Shien Ri ◽  
Qinghu Wang ◽  
...  
Keyword(s):  
Crystallographic Orientation ◽  
Small Crack ◽  
Growth Mode ◽  
Dependent Growth

CVD Filling of Narrow Deep 4H-SiC Trenches in a Quasi-Selective Epitaxial Growth Mode

2018 ◽  
Vol 924 ◽  
pp. 116-119 ◽  
Author(s):  
Shi Yang Ji ◽  
Ryoji Kosugi ◽  
Kazutoshi Kojima ◽  
Kazuhiro Mochizuki ◽  
Yasuyuki Kawada ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Epitaxial Growth ◽  
Growth Rates ◽  
Low Risk ◽  
Growth Mode ◽  
Flow Rates ◽  
Defect Generation ◽  
Selective Epitaxial Growth ◽  
Dependent Growth

By mapping the source and HCl flow rates dependent growth rates, the evolving trend of a quasi-selective epitaxial growth (quasi-SEG) that growing very thin epilayer on mesa top and ensuring an extremely low risk of voids defect generation was firstly figured out on a 5-μm 4H-SiC trench. Then, basing on the acquired knowledge, a 25-μm 4H-SiC trench with an aspect ratio up to ~10 was completely filled in the quasi-SEG mode.

A lateral growth mode leading to successive rotation of crystallographic orientation

2006 ◽  
Vol 38 (6) ◽  
pp. 1024-1027
Author(s):  
Da-Jun Shu ◽  
Da-Wei Li ◽  
Wei Pan ◽  
Hong-Min Li ◽  
Ru-Wen Peng ◽  
...  
Keyword(s):  
Crystallographic Orientation ◽  
Growth Mode ◽  
Lateral Growth ◽  
Successive Rotation

The temperature dependent growth mode of nickel on the basal plane of graphite

1995 ◽  
Vol 327 (3) ◽  
pp. 321-329 ◽  
Author(s):  
M. Bäumer ◽  
J. Libuda ◽  
H.-J. Freund
Keyword(s):  
Basal Plane ◽  
Growth Mode ◽  
Temperature Dependent ◽  
Dependent Growth

scholarly journals Temperature-dependent growth mode of W-doped ZnO nanostructures

2011 ◽  
Vol 257 (14) ◽  
pp. 6226-6232 ◽  
Author(s):  
B.D. Ngom ◽  
M. Chaker ◽  
N. Manyala ◽  
B. Lo ◽  
M. Maaza ◽  
...  
Keyword(s):  
Growth Mode ◽  
Zno Nanostructures ◽  
Temperature Dependent ◽  
Doped Zno ◽  
Dependent Growth

Temperature-dependent growth mode and photoluminescence properties of ZnO nanostructures

2004 ◽  
Vol 399 (4-6) ◽  
pp. 522-526 ◽  
Author(s):  
Dongxu Zhao ◽  
Caroline Andreazza ◽  
Pascal Andreazza ◽  
Jiangang Ma ◽  
Yichun Liu ◽  
...  
Keyword(s):  
Growth Mode ◽  
Zno Nanostructures ◽  
Photoluminescence Properties ◽  
Temperature Dependent ◽  
Dependent Growth

Diameter dependent growth mode of carbon nanotubes on nanoporous SiO2 substrates

2009 ◽  
Vol 63 (15) ◽  
pp. 1366-1369 ◽  
Author(s):  
Chunyan Li ◽  
Hongwei Zhu ◽  
Kazutomo Suenaga ◽  
Jinquan Wei ◽  
Kunlin Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Growth Mode ◽  
Dependent Growth

scholarly journals Oxygen-Dependent Growth of the Sulfate-Reducing Bacterium Desulfovibrio oxyclinae in Coculture withMarinobacter sp. Strain MB in an Aerated Sulfate-Depleted Chemostat

2000 ◽  
Vol 66 (11) ◽  
pp. 5019-5023 ◽  
Author(s):  
Pavel Sigalevich ◽  
Yehuda Cohen
Keyword(s):  
Aerobic Oxidation ◽  
Anaerobic Growth ◽  
Growth Mode ◽  
Most Probable Number ◽  
Anaerobic Conditions ◽  
Probable Number ◽  
Sulfate Reducing ◽  
Significant Difference ◽  
Growth Vessel ◽  
Dependent Growth

ABSTRACT A chemostat coculture of the sulfate-reducing bacteriumDesulfovibrio oxyclinae and the facultatively aerobic heterotroph Marinobacter sp. strain MB was grown for 1 week under anaerobic conditions at a dilution rate of 0.05 h−1. It was then exposed to an oxygen flux of 223 μmol min−1by gassing the growth vessel with 5% O2. Sulfate reduction persisted under these conditions, though the amount of sulfate reduced decreased by 45% compared to the amount reduced during the initial anaerobic mode. After 1 week of growth under these conditions, sulfate was excluded from the incoming medium. The sulfate concentration in the growth vessel decreased exponentially from 4.1 mM to 2.5 μM. The coculture consumed oxygen effectively, and no residual oxygen was detected during either growth mode in which oxygen was supplied. The proportion of D. oxyclinae cells in the coculture as determined by in situ hybridization decreased from 86% under anaerobic conditions to 70% in the microaerobic sulfate-reducing mode and 34% in the microaerobic sulfate-depleted mode. As determined by the most-probable-number (MPN) method, the numbers of viable D. oxyclinae cells during the two microaerobic growth modes decreased compared to the numbers during the anaerobic growth mode. However, there was no significant difference between the MPN values for the two modes when oxygen was supplied. The patterns of consumption of electron donors and acceptors suggested that when oxygen was supplied in the absence of sulfate and thiosulfate, D. oxyclinaeperformed incomplete aerobic oxidation of lactate to acetate. This is the first observation of oxygen-dependent growth of a sulfate-reducing bacterium in the absence of either sulfate or thiosulfate. Cells harvested during the microaerobic sulfate-depleted stage and exposed to sulfate and thiosulfate in a respiration chamber were capable of anaerobic sulfate and thiosulfate reduction.

X-ray microprobe for materials science

1994 ◽  
Vol 52 ◽  
pp. 56-57
Author(s):  
G.E. Ice
Keyword(s):  
Crystallographic Orientation ◽  
Local Structure ◽  
Materials Science ◽  
Chemical Information ◽  
X Ray Diffraction ◽  
Ray Optics ◽  
X Ray ◽  
Novel Materials ◽  
New Information ◽  
Elemental Sensitivity

The increasing availability of synchrotron x-ray sources has stimulated the development of advanced hard x-ray (E≥5 keV) microprobes. With new x-ray optics these microprobes can achieve micron and submicron spatial resolutions. The inherent elemental and crystallographic sensitivity of an x-ray microprobe and its inherently nondestructive and penetrating nature will have important applications to materials science. For example, x-ray fluorescent microanalysis of materials can reveal elemental distributions with greater sensitivity than alternative nondestructive probes. In materials, segregation and nonuniform distributions are the rule rather than the exception. Common interfaces to whichsegregation occurs are surfaces, grain and precipitate boundaries, dislocations, and surfaces formed by defects such as vacancy and interstitial configurations. In addition to chemical information, an x-ray diffraction microprobe can reveal the local structure of a material by detecting its phase, crystallographic orientation and strain.Demonstration experiments have already exploited the penetrating nature of an x-ray microprobe and its inherent elemental sensitivity to provide new information about elemental distributions in novel materials.

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