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This study reports on the synthesis of ball-like bismuth ferrite BiFeO3 nanoflowers by means of microwave assisted hydrothermal process and also on their composition and mechanism of growth. It turns out that the petals of the nanoflowers…

Materials Science · Physics 2014-02-07 B. Andrzejewski , K. Chybczynska , B. Hilczer , M. Blaszyk , T. Lucinski , M. Matczak , L. Kepinski

The growth morphology and the effects of surface reconstruction/relaxation of the habit faces on the crystal morphology of urea crystal are investigated from first principle using the Hartman-Perdok approach. A procedure has been developed…

Materials Science · Physics 2007-05-23 M. K. Singh

Biominerals formed by animals provide skeletal support, and many other functions. They were previously shown to grow by aggregation of amorphous nanoparticles, but never to grow ion-by-ion from solution, which is a common growth mechanism…

The morphologies of two-dimensional (2D) crystals, nucleated, grown, and integrated within 2D elastic fluids, for instance in giant vesicle membranes, are dictated by an interplay of mechanics, permeability, and thermal contraction.…

Soft Condensed Matter · Physics 2023-07-07 Hao Wan , Geunwoong Jeon , Weiyue Xin , Gregory M. Grason , Maria M. Santore

Experiments on the formation of spiraling hexagons (350 - 1000 nm in width) from a solution of nanoparticles are presented. Transmission electron microscopy images of the reaction products of chemically synthesized cadmium nanocrystals…

Materials Science · Physics 2013-05-29 Laura L. A. Adams

Many structural materials (metal alloys, polymers, minerals, etc.) are formed by quenching liquids into crystalline solids. This highly non-equilibrium process often leads to polycrystalline growth patterns that are broadly termed…

Materials Science · Physics 2009-11-10 László Gránásy , Tamás Pusztai , György Tegze , James A. Warren , Jack F. Douglas

The homogenization of vaterite impregnated with gold nanoparticles was accomplished using the extended Maxwell Garnett formalism. The extended formalism takes into account the intrinsic anisotropy of vaterite as well as the size, shape, and…

Optics · Physics 2021-10-12 Tom G. Mackay , Akhlesh Lakhtakia

We report on the growth of nanostructured rods fabricated by electrostatic co-assembly between iron oxide nanoparticles and polymers. The nanoparticles put under scrutiny, {\gamma}-Fe2O3 or maghemite, have diameter of 6.7 nm and 8.3 nm and…

Materials Science · Physics 2010-10-15 M. Yan , J. Fresnais , J. -F. Berret

The method of microwave assisted hydrothermal synthesis of bismuth ferrite multiferroic nanoflowers, their mechanism of growth, magnetic as well as dielectric properties are presented. The nanoflowers are composed of numerous petals formed…

Flower-like nanostructures formed by ZnO nanorods were synthesized and deposited on seeded silicon and glass substrates by a hexamethylenetetramine (HMTA) - assisted hydrothermal method at low temperature (90 oC) with methenamine…

Materials Science · Physics 2012-04-30 S. Lopez-Romero , P. Santiago , D. Mendoza

We report a study on the kinetics of drying of a droplet of aqueous gelatin containing sodium chloride. The process of drying recorded on video, clearly shows different regimes of growth leading to a variety of crystalline patterns. Large…

Soft Condensed Matter · Physics 2015-06-23 Moutushi Dutta Choudhury , Tapati Dutta , Sujata Tarafdar

Microwave-assisted hydrothermal synthesis was used to grow LiMnPO$_4$ micro- and nanocrystals from acetate precursors. By appropriate adjustment of the precursor concentration and the pH-value of the reactant, the product composition and…

Materials Science · Physics 2014-05-29 Christoph Neef , Carsten Jähne , Hans-Peter Meyer , Rüdiger Klingeler

Crystal growth processes produce a diverse array of surface formations, primarily distinguished by their geometric shapes. While some structures strictly adhere to the underlying crystal symmetry, others exhibit universal circular or oval…

Materials Science · Physics 2026-03-10 Marta A. Chabowska , Magdalena A. Załuska-Kotur

Nucleation and growth of crystal in an oxide glass was studied in a Si B Al Zr Nd Ca Na O system. The nucleation and growth process was monitored by thermal analysis and isothermal experiments. For the Ca sample the crystallization is…

Materials Science · Physics 2007-10-10 D. De Ligny , Daniel Caurant , I. Bardez , J. -L. Dussossoy , P. Loiseau , D. R. Neuville

In this study we report on a novel two-step epitaxial growth technique that enables a significant improvement of the crystal quality of nitrogen-polar GaN. The starting material is grown on 4{\deg} vicinal sapphire substrates by metal…

Materials Science · Physics 2024-08-06 Pietro Pampili , Vitaly Z. Zubialevich , Peter J. Parbrook

Growth and structures of crystals in the model of Al obtained in results of isothermal annealing after quick cooling to certain temperatures are studied by the method of molecular dynamics applying the known potential of EAM type. The…

Materials Science · Physics 2014-03-27 A. S. Prokhoda , A. M. Ovrutsky

We report measurements of the initial growth and subsequent transient response of dendritic crystals of ammonium chloride grown from supersaturated aqueous solution. Starting from a small, nearly spherical seed held in unstable equilibrium,…

Materials Science · Physics 2015-06-25 Andrew Dougherty , Thomas Nunnally

The ability to predict the morphology of crystals formed by chemical reactions is of fundamental importance for the shape-controlled synthesis of nanostructures. Based on the atomistic mechanism for crystal growth under different driving…

Materials Science · Physics 2009-11-13 B. Viswanath , Paromita Kundu , B. Mukherjee , N. Ravishankar

Transparent and colorless hexagonal boron nitride (hBN) single crystals were grown from the Mg-B-N system using high-pressure high-temperature cubic anvil technique. By varying the synthesis conditions we could determine the sequence of…

Materials Science · Physics 2014-07-09 N. D. Zhigadlo

Polyhedral nanocrystals of <alpha>-Fe2O3 are successfully synthesized by annealing FeCl3 on silicon substrate at 1000 oC in the presence of H2 gas diluted with argon (Ar). Uniformly shaped polyhedral nanoparticles (diameter ~50-100 nm) are…

Materials Science · Physics 2011-11-22 Rajesh Kumar , S. Gautam , In-Chul Hwang , K. H. Chae , Nagesh Thakur
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