Design and Temperature Calibration for Heater Cell of Split-Sphere High Pressure Apparatus Based on the Hinge-Type Cubic-Anvil Press
-
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。
-
关键词:
- 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. -
Xu J A, Huang E. Graphite-Diamond Transition in Gem Anvil Cells [J]. Rev Sci Instrum, 1994, 65(1): 204-207. Zhang B, Guo W L. Cracking Diamond Anvil Cells by Compressed Nanographite Sheets Near the Contact Edge [J]. Appl Phys Lett, 2005, 87: 051907. Jackson D D, Aracne-Ruddle C, Malba V, et al. Magnetic Susceptibility Measurements at High Pressure Using Designer Diamond Anvils [J]. Rev Sci Instrum, 2003, 74(4): 2467-2471. Wang Y B, Durham W B, Getting I C, et al. The Deformation-DIA: A New Apparatus for High Temperature Triaxial Deformation to Pressures up to 15 GPa [J]. Rev Sci Instrum, 2003, 74(6): 3002-3011. Zhao Y S, He D W, Jiang Q, et al. Development of High p-T Neutron Diffraction at LANSCE-Toroidal Anvil Press, TAP-98, in the HIPPO Diffractometer [A]//Chen J H, Wang Y B, Duffy T S, et al. Advances in High-Pressure Technology for Geophysical Applications [M]. Elsevier Science Technology Books, 2005: 461-474. Kanke Y, Akaishi M, Yamaoka S, et al. Heater Cell for Materials Synthesis and Crystal Growth in the Large Volume High Pressure Apparatus at 10 GPa [J]. Rev Sci Instrum, 2002, 73(59): 3268-3270. Cordier P, Rubie D C. Plastic Deformation of Minerals under Extreme Pressure Using a Multi-Anvil Apparatus [J]. Mater Sci Eng A, 2001(309-310): 38-43. Irifune T, Kurio A, Sakamoto S, et al. Ultrahard Polycrystalline Diamond from Graphite [J]. Nature, 2003, 421(6923): 599-600. Katsura T, Funakoshi K, Kubo A, et al. A Large-Volume High-Pressure and High-Temperature Apparatus for in Situ X-ray Observation, 'SPEED-Mk. II' [J]. Phys Earth Planet Interiors, 2004(143-144): 497-506. Wang F L, He D W, Fang L M, et al. Design and Assembly of Split-Sphere High Pressure Apparatus Based on the Hinge-Type Cubic-Anvil Press [J]. Acta Physica Sinica, 2008, 57(9): 5429-5434. (in Chinese) 王福龙, 贺端威, 房雷鸣, 等. 基于铰链式六面顶压机的二级6-8型大腔体静高压装置 [J]. 物理学报, 2008, 57(9): 5429-5434. He D W, Wang F L, Kou Z L, et al. A New Type Ultra-High Pressure Apparatus: China, 200710048839. 2 [P]. 2007-12-26. (in Chinese) 贺端威, 王福龙, 寇自力, 等. 用于产生超高压的新型装置: 中国, 200710048839. 2 [P]. 2007-12-26. Wang G Z, Zhai X Q, Luo M. The High Pressure and High Temperature Apparatus of the Hinge-Type Cubic-Anvil Press [J]. Diamond and Abrasive Tools Engineering, 2000, 120: 34-37. (in Chinese) 王光祖, 翟小青, 罗明. 铰链式六面砧高压高温装置 [J]. 金刚石与磨料磨具工程, 2000, 120: 34-37. Li J, Tan X. Study on Structure of Main Body of Large-Scale Cubic Press [J]. Mining and Metallurgical Engineering, 2006, 26(3): 61-64. (in Chinese) 李杰, 谭鑫. 大吨位六面顶压机主机结构的研究 [J]. 矿冶工程, 2006, 26(3): 61-64. Wang X C, Jia X P, Zhang T C, et al. cBN Synthesis in the System of hBN-Mg and Bonded Water [J]. Diamond and Related Materials, 2003, 12: 57-60. Ohtaka O, Ohnishi N, Kubo K, et al. High-Pressure and High-Temperature Generation Using Diamond/SiC Composite Anvils Prepared with Hot Isostatic Pressing [J]. High Pressure Research, 2005, 25(1): 11-16. Frost D J, Poe B T, Tronnes R G, et al. A New Large-Volume Multianvil System [J]. Phys Earth Planet Interiors, 2004(143-144): 507-514. Fang L M, He D W, Chen C, et al. Effect of Precompression on Pressure-Transmitting Efficiency of Pyrophyllite Gaskets [J]. High Pressure Research, 2007, 27(3): 367-374. Gou Q Q. The Transformation Mechanism of Graphite-Diamond Under the High Pressure and High Temperature [J]. Journal of Jilin University, 1974, (2): 52-63. 芶清泉. 高温高压下石墨变金刚石结构转化机理 [J]. 吉林大学学报, 1974, (2): 52-63.
点击查看大图
计量
- 文章访问数: 14878
- HTML全文浏览量: 850
- PDF下载量: 1187