@inproceedings{0b8061f530c3416b8d55aad784802301,
title = "Melting characteristics of equiaxed NH 4Cl crystals settling in superheated NH 4Cl-H 2O melts",
abstract = "The influence of equiaxed crystal movements in a superheated environment on the melt kinetics of the equiaxed crystals was experimentally investigated by observation of the settling and melting behaviors of NH 4Cl equiaxed crystals in its aqueous solution. The experimental set-up composed of the settling tubes, water bath and video capture device, where NH 4Cl equiaxed crystals were acquired in a cooling zone and then introduced into the superheated settling tubes filling with NH 4Cl-H 2O model alloy, and the morphologies of the equiaxed crystals were video captured for further analysis. Two kinds of morphology evolution have been observed, and the difference was related with typical spinning movements of the equiaxed crystals during their sedimentation. Changes of the length of six primary dendrite arms have been measured; the results were compared with the calculated melting rate for equiaxed crystals without any convection. It has been shown that the convection induced by the sedimentation imposes a strong influence on the melting kinetics of the equiaxed crystals.",
keywords = "Ammonium chloride, Equiaxed crystal, Melting rate, Morphology, Settling",
author = "Peng Zhou and Meng Wang and Lei Chen and Feng Qiu and Weidong Huang and Jialiang Zhang",
year = "2012",
doi = "10.4028/www.scientific.net/AMR.538-541.2444",
language = "英语",
isbn = "9783037854471",
series = "Advanced Materials Research",
pages = "2444--2447",
booktitle = "Materials Processing Technology II",
note = "2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012 ; Conference date: 06-07-2012 Through 06-07-2012",
}