Experimental Study on Construction of a Newly Supersonic Oven With Liquid Lithium

2018 ◽  
Vol 140 (9) ◽  
Author(s):  
Chuanfu Huang
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Liquid Lithium ◽  
Molybdenum Alloy ◽  
Sodium Clusters ◽  
Lithium Clusters

The seeded supersonic oven originally used to produce sodium clusters was incapable for lithium clusters that should be produced at higher temperatures. Ultimately, we designed a new compact stainless steel (SS) oven with thicker walls and constructed two molybdenum alloy (TZM) heaters for this new oven. The newly designed SS oven and heaters have been tested with liquid lithium, and the tested results demonstrated they can successfully work at ∼1000 °C, and a deposition layer of lithium was observed.

scholarly journals An Experimental Study on the Shape Changes of TiO2Nanocrystals Synthesized by Microemulsion-Solvothermal Method

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Wei Kong ◽  
Bo Liu ◽  
Bo Ye ◽  
Zhongping Yu ◽  
Hua Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Oleic Acid ◽  
Solvothermal Method ◽  
Shape Change ◽  
Tetrabutyl Titanate ◽  
Microemulsion System ◽  
Solvothermal Process ◽  
Shape Changes ◽  
Shape And Size

Titanium dioxide (TiO2) nanocrystals of different shape were successfully synthesized in a new microemulsion system through a solvothermal process. The TiO2nanocrystals were prepared from the reaction of tetrabutyl titanate (TBT),H2O, and oleic acid (OA), which were used as solvent and surfactant at 300∘Cand 240∘Cin a stainless steel autoclave. The sphere, polygon, and rhombus-shaped nanocrystals have been prepared at 300∘Cand the dot- and- rod shaped nanocrystals have been synthesized at 240∘C. The effect of the reaction time on the shape and size of TiO2nanocrystals in this method was studied in the present paper. The size distribution of TiO2nanocrystals prepared at 300∘Cfor different hours is also studied. In addition, an attempt to describe the mechanism of shape change of TiO2nanocrystals was presented in this paper.

scholarly journals Theoretical and Experimental Study of Ultrasonic Vibration-Assisted Laser Polishing 304 Stainless Steel

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 206146-206163
Author(s):  
Di Kang ◽  
Ping Zou ◽  
Hao Wu ◽  
Wenjie Wang ◽  
Jilin Xu
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Ultrasonic Vibration ◽  
304 Stainless Steel ◽  
Laser Polishing

scholarly journals Monitoring of Changes Signal Acoustic Emission Signals Using Waveguides

2017 ◽  
Vol 65 (4) ◽  
pp. 1317-1322 ◽  
Author(s):  
Jaroslav Začal ◽  
Petr Dostál ◽  
Michal Šustr ◽  
David Dobrocký
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Acoustic Emission ◽  
Signal Detection ◽  
Piezoelectric Sensors ◽  
Material Surface ◽  
Medium Density ◽  
Medium Density Fibreboard ◽  
Ae Signal ◽  
Signal Dampening

This paper is focused on possibilities of acoustic emission (AE) signal detection from material surface through waveguide for commonly used piezoelectric sensors. It also considers the experimental study of enhanced detection of occurrence of signal guided through waveguide corpus, its changes and deformities. Aim of this work is verification of several waveguide setup possibilities for maximization of AE signal detection in practice. For this purpose, multiple waveguide setups were manufactured from stainless steel and aluminium alloy. Hsu‑Nielson pen test was utilized for signal actuation. Results demonstrate the differences between measured AE signal with and without employment of waveguide (changes in signal course through different materials and shapes), as well as magnitude of signal dampening and amplification necessary for veritable signal interpretation. Measurements were conducted on agglomerated composite of medium density fibreboard (MDF).

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