β-BaB2O4 single crystal growth by Czochralski method. II

Kouta, Hikaru; Kuwano, Yasuhiko; Ito, Keisuke; Μarumo, F.

doi:10.1016/0022-0248(91)90415-2

Cited by 73 publications

(35 citation statements)

References 8 publications

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“…In the interior parts, the oxygen ions are the connection centers where the exterior and the surface of the particles are ( ) OH − ligands, which have been proved by IR [59,60] and Raman [61,62] spectra in other investigations. So in the complex of (22 ) ( Fig.…”

Section: Synthesis Of Nanosized Zno/co(oh) 2 Coupled Oxides Via Hydromentioning

confidence: 93%

Coupled Semiconductor Metal Oxide Nanocomposites: Types, Synthesis Conditions and Properties

Vaezi¹

2011

Advances in Composite Materials for Medicine and Nanotechnology

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Section: Synthesis Of Nanosized Zno/co(oh) 2 Coupled Oxides Via Hydromentioning

confidence: 93%

Coupled Semiconductor Metal Oxide Nanocomposites: Types, Synthesis Conditions and Properties

Vaezi¹

2011

Advances in Composite Materials for Medicine and Nanotechnology

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“…So, investigation of the incorporation process of ions is very important to disclose mechanisms responsible for particle size variation. From the melt structure investigated at the temperature domain before solidification by means of IR [12], Raman [13], neutron diffraction [14] etc., it was found that the coordination number of cations in the melt is more near to that of the cation in the formed crystal with the decreasing of distance between the testing point and the interface. It suggests that the growth of a crystal accompanies the formation of coordination groups.…”

Section: Particle Size Of Non-oxide Powdersmentioning

confidence: 99%

Particle size of powders under hydrothermal conditions

Shi

Fukuda

2003

Cryst. Res. Technol.

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Various non-oxide (CuI, AgI, AgCl, PbS, CuS and ZnS) and oxide (ZnO, TiO 2 , SnO 2 , CeO 2 and ZrO 2 ) powders were prepared under hydrothermal conditions to investigate the effects of temperature, pH and precursors on the particle size of powders. It was found that the particle sizes of PbS, CuS and ZnS powders were much smaller than that of CuI, AgI and AgCl powders prepared under the same conditions. The particle sizes of TiO 2 , SnO 2 , CeO 2 and ZrO 2 powders are much smaller than that of ZnO powders prepared under the same conditions. It is concluded that the solution conditions have a certain effect on the particle size of powders under the hydrothermal conditions. The particle size of powders increased with the rising of temperature. Additional factors affecting the particle size were uncovered through studying the nucleation mechanism. The particle size was mainly related to the Madelung constant and the electric charge number of ions. Powders with smaller particle size resulted from systems that possessed the larger Madelung constant and ionic charge number.

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“…Un ensemble de paramètres est proposé pour assurer la croissance de la phase P, présentant les propriétés non linéaires requises. Cette méthode de croissance de p-BBO s'apparente à celle décrite par Kouta [1]. L'interprétation différente de la compréhension de la croissance dans un bain en surfusion nous permet de proposer des paramètres beaucoup moins extrêmes que ceux de l'équipe japonaise Ainsi les gradients de température sont divisés par deux, passant de 1200'/cum à 600'/cum.…”

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