高压合成翡翠微结构的研究

杜雁春; 贺端威; 胡艺; 刘银娟; 刘方明; 胡启威; 樊小琴; 杨淑雯; 谭立洁

doi:10.11858/gywlxb.2016.06.001

高压合成翡翠微结构的研究

doi: 10.11858/gywlxb.2016.06.001

杜雁春^{1, 2,},
贺端威^{1, 2,*, ,},
胡艺^{1, 2},
刘银娟^{1, 2},
刘方明^{1, 2},
胡启威^{1, 2},
樊小琴^{1, 2},
杨淑雯^{1, 2},
谭立洁^{1, 2}

1.
四川大学原子与分子物理研究所，四川成都 610065
2.
四川大学高能密度物理及技术教育部重点实验室，四川成都 610065

基金项目:

国家自然科学基金 11427810

国家自然科学基金 51472171

详细信息

作者简介:
杜雁春(1989—), 女，硕士研究生，主要从事大腔体静高压技术和高压材料物性研究.E-mail:d04y25c03@foxmail.com

通讯作者:
贺端威(1969—), 男，博士，教授，主要从事高压科学与技术、超硬材料及纳米材料研究.E-mail:duanweihe@scu.edu.cn

中图分类号: O521.2
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出版历程
- 收稿日期: 2016-02-24
- 修回日期: 2016-03-18

Microstructure of Jadeite Jade Synthesized under High Pressure

DU Yan-Chun^{1, 2
,},
HE Duan-Wei^{1, 2,*
, ,},
HU Yi^{1, 2},
LIU Yin-Juan^{1, 2},
LIU Fang-Ming^{1, 2},
HU Qi-Wei^{1, 2},
FAN Xiao-Qin^{1, 2},
YANG Shu-Wen^{1, 2},
TAN Li-Jie^{1, 2}

1.
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
2.
Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, China

摘要

摘要: 利用溶胶凝胶法制备高压合成翡翠的初级料，对初级料进行多次高温熔融处理以减少其内部的气泡，最后淬火得到具有翡翠化学成分(NaAlSi₂O₆)的透明玻璃料。采用带温加压及卸压的方法对玻璃料进行高温高压处理，以促进样品的塑性形变并减少残余应力，防止样品开裂。高压合成的翡翠样品块体完整，X射线衍射及扫描电镜检测表明，合成样品具有与天然翡翠高度一致的相组成与微结构。研究发现，影响高压合成翡翠样品品质的主要因素是初始玻璃料晶化后硬玉的微结构，即样品中硬玉晶粒的大小、形貌、排列取向和致密性等。
- 翡翠合成 /
- 高温高压 /
- 结晶编织 /
- 微结构
Abstract: In this work we prepared sample primary material for synthesis of jadeite jade adopting the sol-gel method, reduced the bubbles in it by melting it many times at high temperature and, after it, obtained bulk transparent glass materials containing the jade chemical component (NaAlSi₂O₆). In order to promote its plastic deformation, reduce its residual stress and prevent its cracking, we treated the sample by compression and decompression at high temperatures and under high pressures. The jadeite sample so synthesized maintains good forms as blocks, and its phase composition and microstructure are all highly close to those of natural jadeite judging by the analysis of X-ray diffraction (XRD) and scanning electron microscope (SEM). It is found that the major influence on the quality of sample jade synthesized under high pressure is the microstructure of the jadeite jade crystallized from the primary glass material, i.e. the volume, morphology, alignment, compactness, etc. of the crystalline grain.
- synthesis of jadeite jade /
- high temperature and high pressure /
- crystal knitting /
- microstructure

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图 1 实验组装示意图

Figure 1. Schematic of the experiment setup

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图 2 经高温烧结及淬火处理后的初始透明玻璃料

Figure 2. Images of primary materials after being sintered and quenched

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图 3 天然翡翠及不同温度和压力条件下合成的翡翠样品

Figure 3. Optical images of natural jadeite and jadeite samples sythesized at different temperatures and pressures

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图 4 天然翡翠、非晶翡翠玻璃料和不同温压条件下合成样品的XRD图谱

Figure 4. XRD spectra of natural jadeite, block of transparent glass and jadeite samples synthesized at different temperatures and pressures

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图 5 不同温压条件下合成翡翠及天然翡翠样品断面的SEM图像

Figure 5. SEM images of natural jadeite and jadeite samples synthesized at different temperatures and pressures

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