scholarly journals Factors on Particle Shape Control by Dry Impact Blending Method.

1994 ◽  
Vol 7 (2) ◽  
pp. 35-45 ◽  
Author(s):  
Masaru OTANI ◽  
Tomoyuki UCHIYAMA ◽  
Hironori MINOSHIMA ◽  
Kunio SHINOHARA ◽  
Kunihito TAKAYASHIKI ◽  
...  
Keyword(s):  
Particle Shape ◽  
Shape Control ◽  
Blending Method

scholarly journals Particle Shape Control of Zn-Al Composite Oxides by Using Composite Hydroxides as a Precursor

2020 ◽  
Vol 67 (2) ◽  
pp. 73-79
Author(s):  
Kohei YAMAZAKI ◽  
Mitsuaki MATSUOKA ◽  
Norihiro MURAYAMA
Keyword(s):  
Particle Shape ◽  
Shape Control ◽  
Composite Oxides ◽  
Al Composite

Improvement of Adhesion Strength of Cold Spray Coatings by Particle Shape Control

2018 ◽  
Vol 2018 (0) ◽  
pp. J0440002
Author(s):  
Yuji ICHIKAWA ◽  
Ryotaro TOKORO ◽  
Kazuhiro OGAWA
Keyword(s):  
Adhesion Strength ◽  
Cold Spray ◽  
Particle Shape ◽  
Shape Control ◽  
Spray Coatings

Shape control of nanostructured cone-shaped particles by tuning the blend morphology of A-b-B diblock copolymers and C-type copolymers within emulsion droplets

2019 ◽  
Vol 10 (19) ◽  
pp. 2415-2423 ◽  
Author(s):  
Eun Ji Kim ◽  
Jae Man Shin ◽  
YongJoo Kim ◽  
Kang Hee Ku ◽  
Hongseok Yun ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Particle Shape ◽  
Shape Control ◽  
Diblock Copolymers ◽  
Emulsion Droplet ◽  
Emulsion Droplets ◽  
Blend Morphology ◽  
Engineering Strategy

An approach to blend AB-type block copolymers and C-type copolymers within the emulsion droplet is an efficient particle shape-engineering strategy.

Particle-shape control and formation mechanisms of hydrothermally derived lead titanate

1999 ◽  
Vol 14 (3) ◽  
pp. 866-875 ◽  
Author(s):  
Jooho Moon ◽  
Melanie L. Carasso ◽  
Henrik G. Krarup ◽  
Jeffrey A. Kerchner ◽  
James H. Adair
Keyword(s):  
Lead Titanate ◽  
Particle Shape ◽  
Shape Control ◽  
Intermediate Phase ◽  
Solubility Diagram ◽  
Particle Morphology ◽  
Formation Mechanisms ◽  
Initial Stage ◽  
Excess Lead ◽  
Alkaline Conditions

Phase-pure perovskite lead titanate with various morphologies has been synthesized by a hydrothermal method at 150 °C. Particle shapes include cubic, tabular, and aggregated platelike shapes. The feedstock concentration greatly influences particle morphology of the hydrothermally derived PbTiO3. At a concentration of 0.05 M, the tabular particles form while cubic particles are produced at 0.1 M. Aggregated plateletlike particles are synthesized at 0.125 M. It was observed that both tabular and cubic particles directly precipitate from the coprecipitated precursor gel. In contrast, the plateletlike shaped intermediate phase appears during the initial stage of reaction at 0.125 M and in situ transforms into perovskite PbTiO3 during further hydrothermal treatment. The intermediate phase preserves its particle shape during transformation and, acting as a template, gives rise to the final tabular PbTiO3 particles. It is demonstrated that only base reagents such KOH and NaOH, which provide a highly basic condition (i.e., pH > 14), promote transformation of the coprecipitated gel into the perovskite PbTiO3. A Hancock and Sharp kinetic analysis in conjunction with microstructural evidence suggests that the formation mechanism is dissolution and recrystallization in which the degree of supersaturation plays an important role in dictating the crystallographic particle phase and morphology of the particles. An experimentally constructed solubility diagram indicates that an excess lead condition is necessary to compensate for loss of lead species and to increase supersaturation to expedite precipitation of PbTiO3 at highly alkaline conditions.

scholarly journals Particle Shape Control via Etching of Core@Shell Nanocrystals

ACS Nano ◽  
2018 ◽  
Vol 12 (9) ◽  
pp. 9186-9195 ◽  
Author(s):  
Alberto Leonardi ◽  
Michael Engel
Keyword(s):  
Particle Shape ◽  
Shape Control ◽  
Core Shell

Perspective on the use of gas Adsorption for Particle-Shape Control in Supported Metal Catalysis

1987 ◽  
Vol 111 ◽  
Author(s):  
A -C. Shi ◽  
K. K. Fung ◽  
J. F. Welch ◽  
M. Wortis ◽  
R. I. Masel
Keyword(s):  
Particle Shape ◽  
Shape Control ◽  
Gas Adsorption ◽  
Metal Catalysis ◽  
Shape Changes ◽  
Supported Metal

AbstractThis paper explores the possibility of using gas adsorption for particle-shape control in supported metal catalysis. Calculations are done to identify the kinds of shape changes which are possible due to treatment in an appropriate adgas. Experiments are done to try to verify the concepts. The results show that gas adsorption can be used for particle shape control in supported metal catalysis.

Particle shape control using pulse electrodeposition: Methanol oxidation as a probe reaction on Pt dendrites and cubes

2011 ◽  
Vol 196 (20) ◽  
pp. 8307-8312 ◽  
Author(s):  
Irene J. Hsu ◽  
Daniel V. Esposito ◽  
Elizabeth G. Mahoney ◽  
Andrew Black ◽  
Jingguang G. Chen
Keyword(s):  
Methanol Oxidation ◽  
Particle Shape ◽  
Shape Control ◽  
Pulse Electrodeposition
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