The Role of Oriented Attachment Crystal Growth in Hydrothermal Coarsening of Nanocrystalline ZnS

2003 ◽  
Vol 107 (38) ◽  
pp. 10470-10475 ◽  
Author(s):  
Feng Huang ◽  
Hengzhong Zhang ◽  
Jillian F. Banfield
Keyword(s):  
Crystal Growth ◽  
Oriented Attachment

scholarly journals Synthesis of Zirconia Micro-Nanoflakes with Highly Exposed (001) Facets and Their Crystal Growth

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 871
Author(s):  
Haibo Yan ◽  
Jian Di ◽  
Jiahao Li ◽  
Zhuoyu Liu ◽  
Junfeng Liu ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Preparation Method ◽  
Solution Concentration ◽  
Oriented Attachment ◽  
Particle Sizes ◽  
Monoclinic System ◽  
Crystal Growth Mechanism ◽  
Rich Solution ◽  
Xrd Patterns

This study reports a novel preparation method of zirconia micro-nanoflakes with high (001) facets that is generated through a hydrolysis reaction of the fluozirconic acid (H2ZrF6). Zirconia micro-nanoflakes synthesized at varied conditions were analyzed by the SEM, EDS, μ-XRD, and Raman spectroscopy to characterize the morphology and probe into the crystal growth mechanism. The synthesized zirconia crystals in the form of elliptical micro-nanoflakes or irregular nanoflakes generally display the highly exposed (001) facets with a thickness of 1–100 nm and a length of 0.1–2.0 μm. As the temperature and initial solution concentration increased, the particle sizes of the synthesized zirconia micro-nanoflakes became more uniform and the thicknesses of the (001) facets became larger, suggesting that the synthesized zirconia crystals grow along the (001) facets and mostly along the c-axis direction. This is confirmed by the data from the μ-XRD patterns. The results also demonstrate that an oriented attachment-based growth occurring in a fluorine-rich solution environment was involved in the aggregation and coarsening of zirconia micro-nanoflakes. Meanwhile, synthesized zirconia micro-nanoflakes also evolved from a mixture of monoclinic and tetragonal systems to a pure monoclinic system (i.e., baddeleyite) with the temperature increasing, suggesting a key role of temperature regarding zirconia’s growth.

scholarly journals On the Mechanism of Cuprate Crystal Growth: The Role of Mixed Metal Carbonates

2015 ◽  
Vol 25 (29) ◽  
pp. 4700-4707 ◽  
Author(s):  
David C. Green ◽  
Rebecca Boston ◽  
Stefan Glatzel ◽  
Martin R. Lees ◽  
Stuart C. Wimbush ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Mixed Metal ◽  
Metal Carbonates

Particle Engineering: Fundamentals of Particle Formation and Crystal Growth

MRS Bulletin ◽  
2006 ◽  
Vol 31 (11) ◽  
pp. 881-886 ◽  
Author(s):  
Alfred Y. Lee ◽  
Allan S. Myerson
Keyword(s):  
Crystal Growth ◽  
Dosage Form ◽  
Decisive Role ◽  
Product Performance ◽  
Particle Engineering ◽  
Particle Properties ◽  
Packing Arrangement ◽  
Form Development

AbstractThe engineering of particles with customized properties optimized for dosage form manufacture (tablet, capsule, ointment, etc.) has long been a goal of the pharmaceutical industry. Particles can be designed through modification in the size, morphology, and packing arrangement of the solids. The most common approach in achieving this is through crystallization. In this bottom-up process, the two main steps, nucleation and crystal growth, both play a decisive role in shaping the quality of the final crystalline product. In this review, the role of nucleation and crystal growth in controlling particle properties is discussed, and examples are provided that demonstrate the variation in solid-state properties as a function of size, habit (morphology), and internal structure of the particles. In addition, the role of particle properties in product performance and dosage form development of pharmaceuticals is also discussed.

scholarly journals Engaging a Battle on Two Fronts: Dual Role of Polyphosphates as Potent Inhibitors of Struvite Nucleation and Crystal Growth

2020 ◽  
Vol 32 (19) ◽  
pp. 8672-8682
Author(s):  
Doyoung Kim ◽  
Jessica Moore ◽  
Colin P. McCoy ◽  
Nicola Jayne Irwin ◽  
Jeffrey D. Rimer
Keyword(s):  
Crystal Growth ◽  
Dual Role

Role of Poly(vinyl alcohol) in the Crystal Growth of Ammonium Perchlorate

2008 ◽  
Vol 8 (3) ◽  
pp. 1060-1066 ◽  
Author(s):  
Anuj A. Vargeese ◽  
Satyawati. S. Joshi ◽  
V. N. Krishnamurthy
Keyword(s):  
Crystal Growth ◽  
Ammonium Perchlorate ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol
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