基于铰链式六面顶压机的二级6-8模超高压大腔体内置加热元件的设计与温度标定

陈晓芳; 贺端威; 王福龙; 张剑; 李拥军; 房雷鸣; 雷力; 寇自力

doi:10.11858/gywlxb.2009.02.004

基于铰链式六面顶压机的二级6-8模超高压大腔体内置加热元件的设计与温度标定

doi: 10.11858/gywlxb.2009.02.004

四川大学原子与分子物理研究所，四川成都 610065

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通讯作者:
贺端威

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出版历程
- 收稿日期: 2008-05-07
- 修回日期: 2008-08-11
- 刊出日期: 2009-04-15

Design and Temperature Calibration for Heater Cell of Split-Sphere High Pressure Apparatus Based on the Hinge-Type Cubic-Anvil Press

Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

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Corresponding author: HE Duan-Wei

摘要

摘要: 首次报道了一种新型的基于铰链式六面顶压机的二级6-8模大腔体静高压装置的内置加热元件的设计与温度标定。此加热组装结构简单，升温快，保温效果好，并有效地解决了国外基于两面顶压机构架下的二级6-8模内加热组装中热电偶在施加压力时易断的问题。以低成本的碳管为加热元件，采用直接和间接两种加热方式，用双铂铑（Pt6%Rh-Pt30%Rt）B型热电偶进行温度测量，并根据实验过程中加热功率与腔内实际温度的关系，对不同压力下腔体内的温度进行了标定。实验结果表明：此加热系统的油压达到40 MPa（腔体压力约10 GPa）时，温度可以达到1 700 ℃以上；在油压为30 MPa、样品室温度为1 000 ℃时，保温时间可达2 h，甚至更长；实验中获得样品的直径可达3 mm，高度可达7 mm，实现了在高温超高压条件下大样品的制备，满足了实验对产生高温超高压条件的需要。
- 铰链式六面顶压机 /
- 6-8模球分割大腔体高压装置 /
- 加热元件 /
- 温度标定
Abstract: A new type of heater cell for the split-sphere high pressure apparatus based on the hinge-type cubic-anvil press was reported. This heating apparatus has the advantages of being simple, low cost, fast temperature rising, good heat insulation, and the temperature signal can be easily extracted. Carbon tube was used as a heating element for side-heating in our experiments. The size of the sample in the cell can reach 3 mm in diameter, and 7 mm in height. The relationship between the heating electric power and cell temperature was calibrated with Pt6%Rh-Pt30%Rt thermocouples under different pressures. The experimental results indicate that the temperature can reach 1 700 ℃ under the oil hydraulic pressure of 40 MPa (cell pressure is about 10 GPa).The temperature can keep stable for more than 2 h under a fixed power.
- hinge-type cubic-anvil press /
- split-sphere large volume high pressure apparatus /
- heating element /
- temperature calibration

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参考文献(23)

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