气候变化领域集成服务门户(CCPortal): The ice-vapour interface during growth and sublimation

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DOI	10.5194/acp-21-18629-2021
	The ice-vapour interface during growth and sublimation
	Cascajo-Castresana M.; Morin S.; Bittner A.M.
发表日期	2021
ISSN	1680-7316
起始页码	18629
结束页码	18640
卷号	21 期号:24
英文摘要	We employed environmental scanning electron microscopy (ESEM) in low-humidity atmosphere to study the ice growth, coalescence of crystallites, polycrystalline film morphology, and sublimation, in the temperature range of-10 to-20 ° C. First, individual ice crystals grow in the shape of micron-sized hexagonal columns with stable basal faces. Their coalescence during further growth results in substantial surface defects and forms thick polycrystalline films, consisting of large grains separated by grain boundaries. The latter are composed of 1 to 3 μm wide pores, which are attributed to the coalescence of defective crystallite surfaces. Sublimation of isolated crystals and of films is defect-driven, and grain boundaries play a decisive role. A scallop-like concave structure forms, limited by sharp ridges, which are terminated by nanoscale asperities. The motivation for this work is also to evaluate ESEM's ability to provide a clean and reproducible environment for future study of nucleation and growth on atmospherically relevant nucleators such as materials of biological origin and inorganic materials. Hence, extensive information regarding potential ESEM beam damage and effect of impurities are discussed. © 2021 Maria Cascajo-Castresana et al.
语种	英语
scopus关键词	coalescence; grain boundary; humidity; ice crystal; low temperature; scanning electron microscopy; sublimation
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246343
作者单位	Cic NanoGUNE (BRTA), Av. Tolosa 76, Donostia-San Sebastián, 20018, Spain; Department of Chemistry, York University, Toronto, ON M3J 1P3, Canada; Ikerbasque Basque Foundation for Science, Pl. Euskadi 5, Bilbao, 48009, Spain; Tecnalia Research and Innovation, Paseo Mikeletegi 2, Donostia-San Sebastián, 20009, Spain
推荐引用方式 GB/T 7714	Cascajo-Castresana M.,Morin S.,Bittner A.M.. The ice-vapour interface during growth and sublimation[J],2021,21(24).
APA	Cascajo-Castresana M.,Morin S.,&Bittner A.M..(2021).The ice-vapour interface during growth and sublimation.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(24).
MLA	Cascajo-Castresana M.,et al."The ice-vapour interface during growth and sublimation".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.24(2021).