scholarly journals Study on Helium Bubble Coalescence in Titanium with Dislocations

2021 ◽  
Vol 11 (02) ◽  
pp. 73-83
Author(s):  
Baoling Zhang ◽  
Xue Su ◽  
Chongyang Li ◽  
Junwei Zhang
Keyword(s):  
Bubble Coalescence ◽  
Helium Bubble

Study on Helium Bubble Coalescence in the Slip Plane of Titanium

2021 ◽  
pp. 1-9
Author(s):  
Baoling Zhang ◽  
Shuoyang Fang ◽  
Jun Wang ◽  
Xue Su ◽  
Shujian Tian
Keyword(s):  
Slip Plane ◽  
Bubble Coalescence ◽  
Helium Bubble

scholarly journals Simulation study of helium bubble coalescence in tungsten at various temperatures relevant to fusion conditions

2021 ◽  
Vol 187 ◽  
pp. 110076
Author(s):  
Jie Zhan ◽  
Taira Okita ◽  
Minyou Ye ◽  
Daiji Kato ◽  
Katsuyuki Suzuki
Keyword(s):  
Simulation Study ◽  
Bubble Coalescence ◽  
Helium Bubble

A/C FLOW MEASUREMENT BY HELIUM BUBBLE TRACKING IN THE LARGE BODY AIRCRAFT CABIN

2017 ◽  
Vol 24 (1-4) ◽  
pp. 21-32
Author(s):  
R. H. G. Muller ◽  
Th. Scherer ◽  
Th. Rotger ◽  
O. Schaumann ◽  
M. Markwart
Keyword(s):  
Flow Measurement ◽  
Large Body ◽  
Helium Bubble ◽  
Aircraft Cabin

Behaviour of air injection nozzles in dissolved air flotation

1995 ◽  
Vol 31 (3-4) ◽  
pp. 25-35 ◽  
Author(s):  
E. M. Rykaart ◽  
J. Haarhoff
Keyword(s):  
Bubble Coalescence ◽  
Second Phase ◽  
Initial Growth ◽  
Two Phase ◽  
Dissolved Air Flotation ◽  
Nozzle Orifice ◽  
Pressure Release ◽  
Air Volume ◽  
Air Flotation ◽  
Dissolved Air

A simple two-phase conceptual model is postulated to explain the initial growth of microbubbles after pressure release in dissolved air flotation. During the first phase bubbles merely expand from existing nucleation centres as air precipitates from solution, without bubble coalescence. This phase ends when all excess air is transferred to the gas phase. During the second phase, the total air volume remains the same, but bubbles continue to grow due to bubble coalescence. This model is used to explain the results from experiments where three different nozzle variations were tested, namely a nozzle with an impinging surface immediately outside the nozzle orifice, a nozzle with a bend in the nozzle channel, and a nozzle with a tapering outlet immediately outside the nozzle orifice. From these experiments, it is inferred that the first phase of bubble growth is completed at approximately 1.7 ms after the start of pressure release.

Helium bubble formation in refractory single-phase concentrated solid solution alloys under MeV He ion irradiation

2021 ◽  
Vol 550 ◽  
pp. 152937
Author(s):  
N. Jia ◽  
Y. Li ◽  
H. Huang ◽  
S. Chen ◽  
D. Li ◽  
...  
Keyword(s):  
Solid Solution ◽  
Single Phase ◽  
Ion Irradiation ◽  
Bubble Formation ◽  
Helium Bubble

scholarly journals In-Situ TEM Annealing Observation of Helium Bubble Evolution in Pre-Irradiated FeCoNiCrTi0.2 Alloys

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3727
Author(s):  
Huanhuan He ◽  
Zhiwei Lin ◽  
Shengming Jiang ◽  
Xiaotian Hu ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Vacuum Arc ◽  
In Situ Tem ◽  
Face Centered Cubic ◽  
Helium Bubble ◽  
High Entropy ◽  
Helium Bubbles ◽  
Transmission Electron ◽  
Bubble Evolution ◽  
Face Centered

The FeCoNiCrTi0.2 high-entropy alloys fabricated by vacuum arc melting method, and the annealed pristine material, are face centered cubic structures with coherent γ’ precipitation. Samples were irradiated with 50 keV He+ ions to a fluence of 2 × 1016 ions/cm2 at 723 K, and an in situ annealing experiment was carried out to monitor the evolution of helium bubbles during heating to 823 and 923 K. The pristine structure of FeCoNiCrTi0.2 samples and the evolution of helium bubbles during in situ annealing were both characterized by transmission electron microscopy. The annealing temperature and annealing time affect the process of helium bubbles evolution and formation. Meanwhile, the grain boundaries act as sinks to accumulate helium bubbles. However, the precipitation phase seems have few effects on the helium bubble evolution, which may be due to the coherent interface and same structure of γ’ precipitation and matrix.

Bubble coalescence inhibition in volatile solutions at elevated temperatures

2016 ◽  
Vol 94 (7) ◽  
pp. 1413-1422 ◽  
Author(s):  
Jianbiao Shen ◽  
Jian Huang ◽  
Chuanping Liu ◽  
Li Wang
Keyword(s):  
Elevated Temperatures ◽  
Bubble Coalescence

Bubble coalescence in viscous liquids

1971 ◽  
Vol 26 (6) ◽  
pp. 839-851 ◽  
Author(s):  
J.R. Crabtree ◽  
J. Bridgwater
Keyword(s):  
Bubble Coalescence ◽  
Viscous Liquids

Bubble coalescence in foaming process of polymers

2006 ◽  
Vol 46 (5) ◽  
pp. 680-690 ◽  
Author(s):  
Kentaro Taki ◽  
Kazuhide Tabata ◽  
Shin-ichi Kihara ◽  
Masahiro Ohshima
Keyword(s):  
Bubble Coalescence ◽  
Foaming Process
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