The recent development on MgH2 system by 16 wt% nickel addition and particle size reduction through ball milling: A noticeable hydrogen capacity up to 5 wt% at low temperature and pressure

2020 ◽  
Vol 45 (53) ◽  
pp. 29046-29058
Author(s):  
Dwi Rahmalina ◽  
Reza Abdu Rahman ◽  
Agri Suwandi ◽  
Ismail
Keyword(s):  
Particle Size ◽  
Low Temperature ◽  
Ball Milling ◽  
Size Reduction ◽  
Particle Size Reduction ◽  
Hydrogen Capacity ◽  
Nickel Addition ◽  
Temperature And Pressure

scholarly journals Catalytic activation of all-silica COK-14 zeolite through alumination and particle size reduction using wet ball milling

2019 ◽  
Vol 334 ◽  
pp. 3-12 ◽  
Author(s):  
Michiel De Prins ◽  
Elke Verheyen ◽  
Gina Vanbutsele ◽  
Sreeprasanth Pulinthanathu Sree ◽  
Karine Thomas ◽  
...  
Keyword(s):  
Particle Size ◽  
Ball Milling ◽  
Size Reduction ◽  
Particle Size Reduction ◽  
Catalytic Activation

Electron Microscopy Characterization of Humidity Ball-Milling AlCuFe Intermetallic Powders

2009 ◽  
Vol 1242 ◽  
Author(s):  
C. Patiño-Carachure ◽  
O. Téllez-Vazquez ◽  
A. Bedolla-Jacuinde ◽  
R. Esparza ◽  
C. Ángeles-Chávez ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Particle Size ◽  
Ball Milling ◽  
Structural Characteristics ◽  
Size Reduction ◽  
Particle Size Reduction ◽  
Casting Technique ◽  
Environmental Embrittlement ◽  
Transmission Electron ◽  
Microscopy Characterization

ABSTRACTAn Al58Cu25Fe17 alloy composition was produced by conventional casting technique. In order to take advantage from the hydrogen-environmental embrittlement reaction, which affects these alloys, this research was carried out subjecting prealloyed powders to wet-ball milling. Through these experiments it has been possible to evaluate the particle size reduction as consequence of hydrogen fracture and milling energy. The morphological and structural characteristics of the samples were performed using x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The experimental results indicate that the samples with higher contents of humidity have a good particle size reduction. With the increment of milling time, the particle size was diminished even more reaching nanometer size scale.

Homogenization and Particle Size Reduction of PbTiO3 by Ball-Milling of Precursor Gels

1994 ◽  
Vol 109 (2) ◽  
pp. 401-405 ◽  
Author(s):  
Katsuhiko Takeuchi ◽  
Tetsuhiko Isobe ◽  
Mamoru Senna
Keyword(s):  
Particle Size ◽  
Ball Milling ◽  
Size Reduction ◽  
Particle Size Reduction

scholarly journals Particle Size Reduction of .ALPHA.-Si3N4 Powder by Ball Milling.

1992 ◽  
Vol 39 (11) ◽  
pp. 1033-1037
Author(s):  
Hideyuki Masaki ◽  
Naoyoshi Watanabe ◽  
Shigetaka Wada
Keyword(s):  
Particle Size ◽  
Ball Milling ◽  
Size Reduction ◽  
Particle Size Reduction ◽  
Si3n4 Powder

Methods for particle size reduction of liposomal amphotericin B

2018 ◽  
Vol 60 (1) ◽  
pp. 42-45
Author(s):  
Tuan Quang Nguyen ◽  
Van Lam Nguyen ◽  
Thai Son Nguyen ◽  
Thi Minh Hue Pham ◽  
◽  
...  
Keyword(s):  
Particle Size ◽  
Amphotericin B ◽  
Liposomal Amphotericin ◽  
Size Reduction ◽  
Liposomal Amphotericin B ◽  
Particle Size Reduction

scholarly journals Laser Superficial Fusion of Gold Nanoparticles with PEEK Polymer for Cardiovascular Application

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 971
Author(s):  
Oktawian Bialas ◽  
Mateusz Lis ◽  
Anna Woźniak ◽  
Marcin Adamiak
Keyword(s):  
Particle Size ◽  
Laser Beam ◽  
Gold Particle ◽  
Laser Power ◽  
Biomedical Application ◽  
Parameters Optimization ◽  
Size Reduction ◽  
Particle Size Reduction ◽  
Nano Gold ◽  
Gold Particle Size

This paper analyses the possibility of obtaining surface-infused nano gold particles with the polyether ether ketone (PEEK) using picosecond laser treatment. To fuse particles into polymer, the raw surface of PEEK was sputtered with 99.99% Au and micromachined by an A-355 laser device for gold particle size reduction. Biomimetic pattern and parameters optimization were key properties of the design for biomedical application. The structures were investigated by employing surface topography in the presence of micron and sub-micron features. The energy of the laser beam stating the presence of polymer bond thermalisation with remelting due to high temperature was also taken into the account. The process was suited to avoid intensive surface modification that could compromise the mechanical properties of fragile cardiovascular devices. The initial material analysis was conducted by power–depth dependence using confocal microscopy. The evaluation of gold particle size reduction was performed with scanning electron microscopy (SEM), secondary electron (SE) and quadrant backscatter electron detector (QBSD) and energy dispersive spectroscopy (EDS) analysis. The visibility of the constituted coating was checked by a commercial grade X-ray that is commonly used in hospitals. Attempts to reduce deposited gold coating to the size of Au nanoparticles (Au NPs) and to fuse them into the groove using a laser beam have been successfully completed. The relationship between the laser power and the characteristics of the particles remaining in the laser irradiation area has been established. A significant increase in quantity was achieved using laser power with a minimum power of 15 mW. The obtained results allowed for the continuation of the pilot study for augmented research and material properties analysis.

scholarly journals Characterization of Astaxanthin Nanoemulsions Produced by Intense Fluid Shear through a Self-Throttling Nanometer Range Annular Orifice Valve-Based High-Pressure Homogenizer

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2856
Author(s):  
Gary B. Smejkal ◽  
Edmund Y. Ting ◽  
Karthik Nambi Arul Nambi ◽  
Richard T. Schumacher ◽  
Alexander V. Lazarev
Keyword(s):  
Particle Size ◽  
Size Reduction ◽  
Hydrodynamic Diameter ◽  
Fluid Shear ◽  
Particle Size Reduction ◽  
Annular Gap ◽  
Oil In Water ◽  
High Pressure Homogenizer ◽  
Pass Through

Stable, oil-in-water nanoemulsions containing astaxanthin (AsX) were produced by intense fluid shear forces resulting from pumping a coarse reagent emulsion through a self-throttling annular gap valve at 300 MPa. Compared to crude emulsions prepared by conventional homogenization, a size reduction of over two orders of magnitude was observed for AsX-encapsulated oil droplets following just one pass through the annular valve. In krill oil formulations, the mean hydrodynamic diameter of lipid particles was reduced to 60 nm after only two passes through the valve and reached a minimal size of 24 nm after eight passes. Repeated processing of samples through the valve progressively decreased lipid particle size, with an inflection in the rate of particle size reduction generally observed after 2–4 passes. Krill- and argan oil-based nanoemulsions were produced using an Ultra Shear Technology™ (UST™) approach and characterized in terms of their small particle size, low polydispersity, and stability.

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