相关实验视频
Updated: Jul 7, 2026

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Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
在0.6GPa的压力诱导水合物中,在合成的加酸热酸盐中进行压力诱导水合
Yongjae Lee1, Joseph A Hriljac, Sun Jin Kim
1Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA. yollee@bnl.gov
Journal of the American Chemical Society
|June 6, 2003
概括
在氨酸酸中替代降低了水合和体积膨胀的压力值. 这种修改增强了主机网格的灵活性,使这些变化在较低的压力下成为可能.
科学领域:
- 地质化学 地质化学
- 材料科学 材料科学 材料科学
- 矿物物理 矿物物理
背景情况:
- 氨基酸盐纳托利特表现出压力诱导的水合和体积膨胀.
- 宿主格子的灵活性会影响矿物质对外部压力的反应.
研究的目的:
- 为了研究等态置换对压力诱导的水和纳托利特体积膨胀的影响.
- 确定用 (Ga) 取代 (Al) 是否会改变这些现象的压力值.
主要方法:
- 在氨酸酸盐纳特罗利特宿主格子中以更大的Ga替代Al的同型替代.
- 高压实验以诱导水合和体积膨胀.
- 在不同压力下分析结构变化.
主要成果:
- 在0.6 GPa的显著较低压力下观察到压力诱导的水合和体积膨胀的开始.
- 用Ga对Al的同型替代增加了宿主网格的灵活性.
- 这种增强的灵活性有助于降低压力下水化和体积膨胀.
结论:
- 的替代有效降低了水合和体积膨胀所需的压力在natrolite.
- 由于Ga的结合增加了主机网格的灵活性是关键机制.
- 这一发现对理解压力下的矿物行为有意义.
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