THE GROWTH OF FACETS AND VICINAL INTERFACES ON CZOCHRALSKI-GROWN YAG SINGLE CRYSTALS | Zendy

MING NAI-BEN | Zendy; YANG YONG-SHUN | Zendy

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THE GROWTH OF FACETS AND VICINAL INTERFACES ON CZOCHRALSKI-GROWN YAG SINGLE CRYSTALS

Author(s) -

MING NAI-BEN,

YANG YONG-SHUN

Publication year - 1979

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.28.285

Subject(s) - vicinal , materials science , interface (matter) , crystallography , rod , faceting , crystal growth , czochralski method , facet (psychology) , morphology (biology) , crystal (programming language) , core (optical fiber) , surface (topology) , chemical physics , condensed matter physics , optics , geometry , computer science , chemistry , composite material , physics , geology , mathematics , organic chemistry , alternative medicine , capillary number , capillary action , pathology , psychology , social psychology , paleontology , big five personality traits , programming language , medicine , personality

In this paper, we studied the macro-morphology and micro-structure of crystal-molt interfaces, which was exposed by rapid separating the growing crystal from the melt. We have determined the indices of the facets revealed on the interface of Czochralski-pulled YAG single crystals with various orientations. The facets have been discovered on the concave interface as well as on convex interface of -oriented grown YAG single crystals. We have observed the micro-structure of vicinal interface, which is composed of sections of singular surface dispersed with steps. The experimental evidence for the step movement as well as the interaction of steps with inclusions on these interfaces is presented.The micro-structure of the interfaces and the correspondence between the facets and the core for concave interface growth are discussed, and it is implied that the macro-shapes of interface influence the micro-mechanism of growth. The growth mechanism for concave and convex interfaces based on these considerations is then developed.

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