常压下籽晶诱导翡翠玻璃料晶化

材料导报

2020, Vol. 34

Issue (Z1): 94-96

无机非金属及其复合材料

常压下籽晶诱导翡翠玻璃料晶化

郭志超¹, 藏金浩², 王金龙¹, 刘岩¹

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

Crystallization of Jadeite Glass Material Induced by Seed Crystal UnderAtmospheric Pressure

GUO Zhichao¹, ZANG Jinhao², WANG Jinlong¹, LIU Yan¹

1 College of Physics and Electronic Engineering, Xinxiang University, Xinxiang 453003, China;
2 School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China

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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NaAlSi₂O₆矿物晶体的转化。

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关键词: 翡翠籽晶玻璃质矿物晶体诱导晶化

Abstract: 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.

Key words: jadeite seed crystal vitreous substance mineral crystallin induced crystallization

发布日期: 2020-07-01

ZTFLH:

O78

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

作者简介: 郭志超,新乡学院,讲师。2013年7月毕业于北京工业大学,材料学博士学位。2016年结束博士后研究,于同年进入新乡学院工作至今,主要从事无机材料制备工艺的研发。在SCI/EI期刊发表文章16篇,申请发明专利15项。

引用本文:

郭志超, 藏金浩, 王金龙, 刘岩. 常压下籽晶诱导翡翠玻璃料晶化[J]. 材料导报, 2020, 34(Z1): 94-96.
GUO Zhichao, ZANG Jinhao, WANG Jinlong, LIU Yan. Crystallization of Jadeite Glass Material Induced by Seed Crystal UnderAtmospheric Pressure. Materials Reports, 2020, 34(Z1): 94-96.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2020/V34/IZ1/94

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