Hydrothermal growth of quartz crystals in pure water

Hosaka, Masahiro; Taki, Sadao

doi:10.1016/0022-0248(81)90451-6

Cited by 20 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Authors usually attributed morphological changes to the random adsorption of the impurity on specific crystal surfaces. The results of our research clearly show that several morphological changes can be correctly interpreted in terms of 2D-epitaxially absorbed phases [1], [2] leading both to morphological and structural changes. In the case of potassium chloride crystals, both in-situ and ex-situ observations on growing and etched crystals were performed [3] in order to demonstrate that the appearance of the octahedron in the crystal morphology is due to the step bunching effect ascribable to the precipitation of PbCl 2 crystallites along the n steps on the {100} forms.…”

supporting

confidence: 53%

See 1 more Smart Citation

Tuning of micro α-quartz crystals morphology by low hydrothermal synthesis methods

Aquilano¹,

Pastero²,

Leinardi³

et al. 2012

Acta Cryst Sect A

View full text Add to dashboard Cite

supporting

confidence: 53%

“…Traditional hydrothermal methods are widely diffused for the synthesis of a-quartz [1], [2], [3]. As applied to quartz synthesis, the hydrothermal method requires high P,T conditions in order to dissolve the supply material.…”

mentioning

confidence: 99%

Tuning of micro α-quartz crystals morphology by low hydrothermal synthesis methods

Aquilano¹,

Pastero²,

Leinardi³

et al. 2012

Acta Cryst Sect A

View full text Add to dashboard Cite

“…-the purification of the nutrient (throught a multirecrystallization) [37] and -the reduction of the mineralizer concentration, even the use of pure solvents such as water [38].…”

Section: The Reduction Of the Chemical Impuritiesmentioning

confidence: 99%

Review. New Trends in Solvothermal Crystal Growth at theMacro- and Nanoscale

Demazeau

Largeteau

Darracq

2010

Zeitschrift Für Naturforschung B

View full text Add to dashboard Cite

Solvothermal processes, as compared to hydrothermal processes, enlarge the scope of the employed solvents from aqueous to non-aqueous media, the objective being to extend the possibilities for the preparation and/or the crystal growth of non-oxide materials. During the last fifteen years solvothermal crystal growth of materials has been investigated at two different levels: (i) the macroscopic scale, with the preparation of large single crystals of functional materials for specific applications, (ii) the nanoscale, involving the elaboration of single-crystalline nanocrystallites well defined in size and morphology, and particularly adapted to nanodevices. In the first domain, two main factors have been studied: (i) the influence of the thermodynamical parameters governing the solvothermal processes, and (ii) the purity of the components (nutrient, solvent, etc.), the main objective being to reduce drastically the density of defects inside the single crystals. In the second domain, strong efforts have been made: (i) to control the nano-size, but mainly, (ii) to induce specific morphologies, in particular 1D, appropriate to the relative nanotechnologies.

show abstract

“…(2) the reduction of the mineralizer concentration or the crystal growth with pure solvent (for example: only water in the case of α‐quartz but in this case, the pressure value is increased in order to improve the nutrient solubility‐ from 150 MPa to 320 MPa),13…”

Section: Recent Trends To Improve the Quality Of Bulk Single Crystalsmentioning

confidence: 99%

Remarkable Antiagglomeration Effect of a Yeast Biosurfactant, Diacylmannosylerythritol, on Ice‐Water Slurry for Cold Thermal Storage

Kitamoto

Yanagishita

Endo

et al. 2001

Biotechnology Progress

View full text Add to dashboard Cite

Antiagglomeration effects of different surfactants on ice slurry formation were examined to improve the efficiency of an ice-water slurry system to be used for cold thermal storage. Among the chemical surfactants tested, a nonionic surfactant, poly(oxyethylene) sorbitan dioleate, was found to show a greater antiagglomeration effect on the slurry than anionic, cationic, or amphoteric surfactants. More interestingly, diacylmannosylerythritol, a glycolipid biosurfactant produced by a yeast strain of Candida antarctica, exhibited a remarkable effect on the slurry, attaining a high ice packing factor (35%) for 8 h at a biosurfactant concentration of 10 mg/L. These nonionic glycolipid surfactants are likely to effectively adsorb on the ice surface in a highly regulated manner to suppress the agglomeration or growth of the ice particles. This is the first report on the utilization of biosurfactant for thermal energy storage, which may significantly expand the commercial applications of the highly environmentally friendly slurry system.

show abstract

Hydrothermal growth of quartz crystals in pure water

Cited by 20 publications

References 2 publications

Tuning of micro α-quartz crystals morphology by low hydrothermal synthesis methods

Tuning of micro α-quartz crystals morphology by low hydrothermal synthesis methods

Review. New Trends in Solvothermal Crystal Growth at theMacro- and Nanoscale

Remarkable Antiagglomeration Effect of a Yeast Biosurfactant, Diacylmannosylerythritol, on Ice‐Water Slurry for Cold Thermal Storage

Contact Info

Product

Resources

About