二级6-8型静高压装置厘米级腔体内置加热元件的设计与温度标定

马迎功; 贺端威; 韩晶晶; 王强; 刘进; 王永华; 刘方明; 丁未; 寇自力

doi:10.11858/gywlxb.2017.01.009

二级6-8型静高压装置厘米级腔体内置加热元件的设计与温度标定

doi: 10.11858/gywlxb.2017.01.009

四川大学原子与分子物理研究所，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:
马迎功(1990—)，男，硕士，主要从事大腔体静高压技术、超硬材料合成和高压材料物性研究.E-mail:272145175@qq.com

通讯作者:
贺端威(1969—)，男，博士，教授，博士生导师，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: O521.3
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出版历程
- 收稿日期: 2016-01-25
- 修回日期: 2016-03-31

Design and Temperature Calibration for Heater Cell of Centimeter-Scale Sample Chamber for Two-Stage 6-8 Type Static High Pressure Apparatus

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

摘要

摘要: 最近研制的二级6-8型大腔体静高压装置可在15 GPa以上的压力条件下进行厘米级样品的高压合成，对此装置的高压腔内置加热元件进行了设计与实验测试，并标定了不同的腔体压力下加热功率和温度的关系，同时用六角氮化硼在没有触媒的情况下转化成立方氮化硼的合成实验验证了此装置所达到的温压条件。实验结果表明，所设计的加热组装在高压高温下运行稳定，可以在压力超过14 GPa、温度超过1 800 ℃的条件下进行厘米级样品的高温高压处理。
- 静高压装置 /
- 厘米级样品 /
- 加热组装 /
- 温度标定
Abstract: In the present study, we developed a two-stage 6-8 type multianvil high pressure apparatus, which is capable of pressurizing centimeter-scale samples above 15 GPa.We also designed and tested the heater cell for the apparatus.The relationship between the heating power and the cell temperature was calibrated under different pressures.With the successful experiment of directing transformation of hexagonal boron nitride to cubic boron nitride, the pressure and temperature in the heater cell was demonstrated.The experimental results indicate that the assembly can run stably under a pressure above 14 GPa and at a temperature above 1 800 ℃ for a centimeter size sample.
- static high pressure apparatus /
- centimeter-scale sample /
- heating assembly /
- temperature calibration

HTML全文

图 1 36/20加热组装示意图

Figure 1. Heating system of 36/20 assembly

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图 2 不同腔体压力下的加热功率与温度的关系

Figure 2. Heating power versus temperature under different pressures

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图 3 不同腔体压力下的加热功率与电阻关系曲线

Figure 3. Evolution of heating power versus resistance under different pressures

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图 4 不同厚度的金属加热体的加热功率与温度关系曲线

Figure 4. Evolution of heating power versus temperature for metal heater with different thicknesses

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图 5 高压高温实验前后样品X射线衍射图谱

Figure 5. X-ray diffraction spectra of samples before and after high-pressure and high-temperature treatment

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图 6 高温高压实验后的BN样品照片

Figure 6. Picture of BN sample after high-pressure and high-temperature treatment

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