학술논문

Synthesis and characterization of Zn-doped enstatite.
Document Type
Article
Source
Applied Physics A: Materials Science & Processing. Jul2015, Vol. 120 Issue 1, p175-182. 8p. 1 Color Photograph, 2 Black and White Photographs, 1 Chart, 3 Graphs.
Subject
*ENSTATITE
*SINGLE crystals
*X-ray powder diffraction
*ENERGY dispersive X-ray spectroscopy
*CATHODOLUMINESCENCE
Language
ISSN
0947-8396
Abstract
Single crystals of Zn-doped enstatite (MgZn)SiO have been synthesized by slow-cooling flux method using two different fluxes. The starting mixtures were first held at a temperature between 1350 and 950 °C and then slowly cooled to the final temperature (600-750 °C) at four different rates. The grown crystals were characterized by binocular microscope, X-ray powder diffraction, scanning electron microscopy with energy-dispersive spectrometry. When LiCO, MoO and VO were used as flux, Zn-doped enstatite crystals up to 3.5 mm in length grew successfully. They were transparent in color and showed the typical prismatic form. Chemical analyses on several Zn-doped enstatite crystals showed that the amount of Zn indicated as ZnO wt% ranges from 3.37 to 10.49 wt%. Further characterization by cathodoluminescence and by µ-Raman spectroscopy allowed us to study the effect of zinc dopant on the chemical/physical characteristics of the doped enstatite. [ABSTRACT FROM AUTHOR]