文献类型：期刊文献

中文题名：常压下籽晶诱导翡翠玻璃料晶化

英文题名：Crystallization of Jadeite Glass Material Induced by Seed Crystal UnderAtmospheric Pressure

作者：郭志超[1];藏金浩[2];王金龙[1];刘岩[1]

第一作者：郭志超

机构：[1]新乡学院物理与电子工程学院,新乡453003;[2]郑州大学物理工程学院,郑州450052

第一机构：新乡学院物理与电子工程学院

年份：2020

卷号：34

期号：S01

起止页码：94-96

中文期刊名：材料导报

外文期刊名：Materials Reports

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金青年基金(1170050821);高等学校重点科研项目(17A140026)。

语种：中文

中文关键词：翡翠;籽晶;玻璃质;矿物晶体;诱导晶化

外文关键词：jadeite;seed crystal;vitreous substance;mineral crystallin;induced crystallization

摘要：天然翡翠可能是形成于高温、高压条件,人工合成翡翠就普遍依此展开探索,但苛刻的制备条件使得人造翡翠成本较高,产品也都未商业化。合成翡翠的困难是实现翡翠玻璃质到硬玉矿物晶体的转化,这也是研究开发低成本合成翡翠的瓶颈。鉴于此,本工作针对常压下实现翡翠玻璃质晶化的难题,利用籽晶诱导促使翡翠玻璃料晶化的方法制备样品,并对制备产物进行分析测试,样品的X衍射分析表明,合成样品结晶物为硬玉(NaAlSi2O6),又用光学显微镜、扫描电子显微镜(SEM)和透射电子显微镜(TEM)分别对样品的形貌、介观和微观结构进行了测量及分析,样品的SEM结果显示晶体表面存在片状和片体团簇的花朵状结构,TEM结果显示样品内有完整的不同取向的晶格条纹。结果显示,样品中存在微观孔洞和微裂纹,质量达不到宝石级别,但实现了常压下由翡翠玻璃料到NaAlSi 2O 6矿物晶体的转化。
Jadeite maybe was formed in metamorphic rocks under high pressure and relatively high temperature conditions.According to this statement,the exploration of artificial synthesis jadeite was generally carried out under this harsh preparation conditions,which make the manufacturing cost higher,and the products were not commercialized.The core issue of the synthesis jadeite was the difficulty in the transformation from vitreous substance to jadeite mineral crystals,which was also the bottleneck in the exploration and development of low-cost synthetic jadeite.Aiming at the problem of crystallization of jadeite glass,the present paper we prepared jadeite sample by seed-induced crystallization under atmospheric pressure.The XRD results of the sample showed that the crystals of the synthesized samples were jadeite(NaAlSi2O6).Utilizing optical microscopy,SEM and TEM,mesoscopic and microstructure of the sample were investigated systematically.The flake structure and micro cracks were observed on the surface of the sample by optical microscopy,the SEM results show that the lamellar crystals and flower-like structure of lamellar clusters in sample,and the TEM results show that the samples have complete lattice fringes with different orientations.Due to the existence of micro-voids and macro-cracks in the samples,the prepared samples were unsatisfactory as gemstones.However,the transformation from jadeite vitreous to NaAlSi2O6 mineral crystals were realized under atmospheric pressure.