In situ observation the interface undercooling of freezing colloidal suspensions with differential visualization method

The Review of Scientific Instruments
Jiaxue YouWeidong Huang

Abstract

Interface undercooling is one of the most significant parameters in the solidification of colloidal suspensions. However, quantitative measurement of interface undercooling of colloidal suspensions is still a challenge. Here, a new experimental facility and gauging method are designed to directly reveal the interface undercooling on both static and dynamic cases. The interface undercooling is visualized through the discrepancy of solid/liquid interface positions between the suspensions and its solvent in a thermal gradient apparatus. The resolutions of the experimental facility and gauging method are proved to be 0.01 K. The high precision of the method comes from the principle of converting temperature measurement into distance measurement in the thermal gradient platform. Moreover, both static and dynamic interface undercoolings can be quantitatively measured.

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Citations

Apr 6, 2016·The Journal of Physical Chemistry. B·Julia Mary Helen SchollickDirk G A L Aarts
Jan 5, 2021·Soft Matter·Jiaxue YouM Grae Worster
Jan 21, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Sergei V GermanDmitry A Gorin
Aug 25, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Tongxin ZhangJincheng Wang
Jul 13, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Jiaxue YouYaochan Zhu
Jan 19, 2021·The Journal of Physical Chemistry. B·Tongxin ZhangJincheng Wang

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