The quartz capsule : a new method to avoid alloying problems with noble-metal capsules in hydrothermal experiments
The quartz capsule : a new method to avoid alloying problems with noble-metal capsules in hydrothermal experiments
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石英胶囊：避免水热实验中贵金属胶囊合金化问题的新方法
DOI：
10.1127/0935-1221/2012/0024-2216
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发表时间：
2012
影响因子：
2.1
通讯作者：
Audétat A.
中科院分区：
文献类型：
--
作者：
Lerchbaumer L.;Audétat A.
专门设计的石英衬里可有效防止高温高压水热实验期间贵金属胶囊出现合金化问题。内衬由三部分组成：由单块石英晶体制成的圆柱形容器、SiO 2 玻璃塞和由单块石英晶体制成的圆形封闭盖。达到最终压力和温度后不久，SiO 2 玻璃塞的重结晶导致石英盖紧密密封到石英容器上，从而产生石英胶囊，该石英胶囊将电荷与周围的贵金属胶囊完全隔离。该方法的效率在含 Cu 和 S (±Fe, Ag)、以 NaCl-H 2 O 为主的流体的实验中得到了证明，所有常用的贵金属（和合金）都会与这些元素中的任何一种发生反应，这一事实使实验变得复杂。即使少量添加的银在运行后仍然存在，表明与外部金胶囊的相互作用微乎其微。新方法还可以研究涉及低熔点化合物（例如锡、铋、碲、铊和汞）的化学系统，并且在必要时允许用非贵金属制成的胶囊替换周围的贵金属胶囊。该方法的缺点是它不能与外部fO 2 缓冲剂结合使用，因为流体夹杂物在达到相对于外部fO 2 缓冲剂的平衡之前形成。
A specially designed quartz liner effectively prevents alloying problems with noble-metal capsules during hydrothermal experiments at elevated pressures and temperatures. The liner consists of three pieces: a cylindrical container made of a single quartz crystal, a SiO 2 glass plug, and a rounded closure lid made of a single quartz crystal. Soon after the final pressure and temperature have been reached, recrystallisation of the SiO 2 glass plug causes the quartz cap to be tightly sealed onto the quartz container, thus producing a quartz capsule that fully isolates the charge from the surrounding noble-metal capsule. The efficiency of the method is demonstrated on experiments with Cu and S (±Fe, Ag)-bearing, NaCl-H 2 O dominated fluids, which are complicated by the fact that all commonly used noble metals (and-alloys) react with either of these elements. Even small amounts of added Ag are still present after the run, showing that interaction with outer gold capsules was minimal. The new method makes it also possible to study chemical systems involving compounds with low melting points, such as Sn, Bi, Te, Tl, and Hg, and it allows the surrounding noble-metal capsules to be replaced by capsules made of non-noble materials if necessary. A disadvantage of the method is that it cannot be used in conjunction with external fO 2 buffers, as the fluid inclusions form before equilibrium with respect to an external fO 2 buffer is reached.
一种在受控时间和不利生长条件下合成石英中大型流体包裹体的方法
影响因子：
3.1
作者：
Yuan Li;A. Audétat
通讯作者：
A. Audétat
用于 X 射线吸收和散射技术的高压/高温池
影响因子：
1.6
作者：
D. Testemale;R. Argoud;O. Geaymond;J. Hazemann
通讯作者：
J. Hazemann