Use of capillary and pinch instability for dendritic crystal growing

Meyer, Erich; Rinderer, L.

doi:10.1016/0022-0248(75)90235-3

Cited by 12 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dendritic crystallization was also widely observed in metallurgical studies involving changes that occur when molten metal and alloys are cooled at different rates and under various conditions. [63][64][65][66] Until now most of the works demonstrating pattern formation can be clearly divided into exclusively colloidal particle self-assembly and into those which involve the crystallization of materials or mixtures of materials, as described earlier. The formation of salt assisted evaporation inducing a self-assembled pattern of colloidal sulfur is the novelty of this work.…”

Section: Introductionmentioning

confidence: 99%

Self-assembly of colloidal sulfur particles influenced by sodium oxalate salt on glass surface from evaporating drops

2012

View full text Add to dashboard Cite

Evaporation of sessile droplets containing colloidal particles induces outward flow within the drop, which produces the well-known ''coffee-ring'' effect or a dense ring-like deposition along the perimeter. In this work, the formation of a self-assembled structure during drying of microlitre drops on the glass surface, containing colloidal sulfur particles (synthesized in situ by the reaction of oxalic acid and sodium thiosulphate), is investigated experimentally with help of optical microscopy. Our results show that the particles are self-assembled into a tree-like structure after the evaporation of liquid drops taken from the reaction mixture. The sulfur particles alone cannot form similar self-assembly structures in pure water, but the sodium oxalate salt present in the reaction mixture helps to form the tree-like structure. The structure formation is also influenced by evaporative flux inside the liquid drop, and capillary and van der Waals attractive forces between the particles. The different parameters such as particle size, particle and salt concentration, acid to thiosulphate ratio, drop volume and addition of surfactants strongly influences the structure formation.

show abstract

Section: Introductionmentioning

confidence: 99%

Self-assembly of colloidal sulfur particles influenced by sodium oxalate salt on glass surface from evaporating drops

2012

View full text Add to dashboard Cite

show abstract

“…1 and it is composed in two complementary parts. spheres by the technique of capillary and pinch instability used previously by Meyer and Rinderer [5]. This technique involved a wire sample about 1 cm length, attached to electrodes inside a chamber filled with helium gas.…”

Section: Methodsmentioning

confidence: 99%

Supercooling measurement in W, Ta, Nb and Re liquid metals by stereophotocalorimetric method

Houch

Soares

Rinderer

1997

Journal of Thermal Analysis

Self Cite

View full text Add to dashboard Cite

The technique of crystal growth coupled with a stereophotocalorimetric method has been used in a series of supercooling measurements on pure refractory metals. The cooling history of these metals is recorded on photographic films which are calibrated as a function of the temperature. High absolute amounts of supercooling has been observed in W, Ta, Nb and Re liquid droplets. It is noted that the brightness traces of the solidification process for highly supercooled Re droplets evidence of two successive phase transformations (Re cfc to Re he) shows.

show abstract

“…Values obtained: I pk =29.1/-36.5/31.9 kA; I rms =18. In summary, after analyzing the remaining of the HBC fuses, the phenomena of unduloid formation on the fusible element have been observed, which propose that the mechanism of disintegration is dependent on the instability of the liquefied cylinder [17][18][19][20][21][22][23][24] and the evolution of the cylinder into stable spheres. Cylinder instability due to electromagnetic forces is questionable since in separate cases unduloids have been observed to form due to stored thermal energy.…”

Section: Vmentioning

confidence: 99%

Experimental Study of HBC Fuses with Aluminum Fuse Element at Minimum Rated Breaking Current, Maximum Rated Breaking Current and Transfer Current of Fuse-Switch Combination

Sălceanu¹,

Nicola²,

Ocoleanu³

et al. 2021

AUCEE

View full text Add to dashboard Cite

The article presents an experimental study of high breaking capacity fuses with aluminum fusible element with and without a eutectic point, at minimum rated breaking current, preceded by experiments at maximum rated breaking current. The paper shows that in the construction with aluminum fusible element, the fuse has no problem breaking the maximum rated breaking current, but real difficulties appears when it comes to the minimum rated breaking current. The experiments were made on a homogeneous series 6-20 A, with a focus on the 36 kV, 25 kA, 16 A fuse. The fuses suffered multiple construction changes and tests with and without a eutectic point. After several tests was found an acceptable constructive solution was, but the obtained value for the minimum rated breaking current is not a commercially attractive value. It was also tested the capacity of the fuse to transfer the breaking duty to a load break switch.

show abstract

Use of capillary and pinch instability for dendritic crystal growing

Cited by 12 publications

References 13 publications

Self-assembly of colloidal sulfur particles influenced by sodium oxalate salt on glass surface from evaporating drops

Self-assembly of colloidal sulfur particles influenced by sodium oxalate salt on glass surface from evaporating drops

Supercooling measurement in W, Ta, Nb and Re liquid metals by stereophotocalorimetric method

Experimental Study of HBC Fuses with Aluminum Fuse Element at Minimum Rated Breaking Current, Maximum Rated Breaking Current and Transfer Current of Fuse-Switch Combination

Contact Info

Product

Resources

About