帮助 关于我们

返回检索结果

活塞圆筒装置压力盘样品组装的温度测定和热结构分析
Temperature Determination and Thermal Structure Analysis on the Pressure Assembly of a Piston-Cylinder Apparatus

查看参考文献31篇

夏莹 1   丁兴 1 *   宋茂双 1   熊小林 1   邵同宾 1   李建峰 1   郝锡荦 2  
文摘 活塞圆筒是目前使用最广泛的固体介质高温高压装置,样品组装方式和组装件的材料类型决定了高压腔体内部的热结构特征。在0.5、1.0、1.5 GPa压力下、800~1400 ℃范围内,采用改进的双热电偶法、尖晶石反应测温法对QUICKpress型活塞圆筒的13 mm 压力盘的样品组装进行了温度测定,通过获得的实验数据并结合傅里叶热传导模拟结果进行了热结构分析。实验结果表明:(1)热峰位置均位于有效石墨炉中心以下,即靠近钢塞一侧,20 ℃温差范围的热点区轴向分布区域大小介于2.8~5.2 mm,其热梯度为7.7~13.0 ℃/mm,而非热点区热梯度为42~83 ℃/mm;(2)随着温度或压力升高,热峰倾向于朝有效石墨炉中心靠拢,同时伴随着炉内热梯度增大和热点区变小,温度的影响更为显著。还对活塞圆筒压力组装的热结构的影响因素及相关问题进行了探讨。
其他语种文摘 Piston-cylinder apparatus is widely used for high-pressure and high-temperature experiments.Its thermal structure in the pressure chamber depends mainly on design and materials of the sample assembly.Here we present a thermal structure analysis on the 13 mm pressure assembly of a QUICKpress piston-cylinder apparatus on the basis of the experimental temperature measurements using the double thermocouple determination,the spinel reaction progress thermometer,and heat conduction simulation by Fourier's law.The temperature measurements were conducted at 0.5 GPa,1.0 GPa and 1.5 GPa with the control thermocouple in a temperature range of 800-1400 ℃.The major results are summarized as follows:(1) the hot spot is always located at a position below the midpoint of effective furnace (this means that it is close to the steel base plug);(2) the hot spot region with a temperature variation within 20 ℃ possesses a width of 2.8 mm to 5.2 mm,showing a low thermal gradient of 7.7-13.0 ℃/mm while the region far from hot spot shows a much higher thermal gradient of 42-83 ℃/mm;(3) the position of hot spot moves toward the center or midpoint of effective furnace with pressure or temperature increasing,but the temperature profile is main determined by the temperature of hot spot,with the hot spot region becoming narrower and the thermal gradients for both the hot spot region and the region far from hot spot becoming larger with temperature increasing.On the basis of our experimental and numerical simulation results,effective factors controlling the thermal structure of pressure assembly of a piston-cylinder apparatus and other issues are further discussed.
来源 高压物理学报 ,2014,28(3):262-272 【核心库】
DOI 10.11858/gywlxb.2014.03.002
关键词 活塞圆筒 ; 尖晶石反应测温法 ; 双热电偶法 ; 热梯度 ; 热结构
地址

1. 中国科学院广州地球化学研究所, 同位素地球化学国家重点实验室, 广东, 广州, 510640  

2. 香港大学地球科学系, 香港

语种 中文
文献类型 研究性论文
ISSN 1000-5773
学科 物理学
基金 国家自然科学基金重大项目 ;  国家自然科学基金面上项目
文献收藏号 CSCD:5227301

参考文献 共 31 共2页

1.  Green D H. Water and its influence on the lithosphere-asthenosphere boundary. Nature,2010,467(7314):448-451 被引 50    
2.  Boyd F R. Apparatus for phase equilibrium measurements at pressures up to 50 kilobars and temperatures up to 1750 ℃. J Geophys Res,1960,65(2):741-748 被引 4    
3.  Watson E B. Mapping the thermal structure of solid-media pressure assemblies. Contrib Mineral Petrol,2002,142(6):640-652 被引 5    
4.  Kushiro I. Changes in viscosity and structure of melt of NaAlSi_3O_8 composition at high pressures. J Geophys Res,1976,81(35):6347-6356 被引 7    
5.  Walter M J. Characterizing experimental pressure and temperature conditions in multianvil apparatus. Canad J Phys,1995,73(5/6):273-286 被引 5    
6.  Takahashi E. Melting of dry peridotite KLB-1 up to 14 GPa:Implications on the origin of peridotitic upper mantle. J Geophys Res,1986,91(B9):9367-9386 被引 13    
7.  Walker D. Ureilite compaction. Meteoritics,1988,23(1):81-91 被引 2    
8.  Wark D A. Grain-scale channelization of pores due to gradients in temperature or composition of intergranular fluid or melt. J Geophys Res,2002,107(B2):2040-2045 被引 1    
9.  Walker D. Soret separation of lunar liquid. Proc Lunar Planet Sci. B,1981,12:991-999 被引 1    
10.  Lesher C E. Solution properties of silicate liquids from thermal diffusion experiments. Geochim Cosmochim Ac,1986,50:1397-1411 被引 6    
11.  Lesher C E. Cumulate maturation and melt migration in a temperature gradient. J Geophys Res,1988,93(B9):10295-10311 被引 4    
12.  Pickering J M. Off-center hot spots:Double thermocouple determination of the thermal gradient in a 1.27 cm (1/2 in.) CaF_2 piston-cylinder furnace assembly. Am Mineral,1998,83(3/4):228-235 被引 2    
13.  Watson E B. Diffusion of dissolved SiO_2 in H_2O at 1 GPa,with implications for mass transport in the crust and upper mantle. Contrib Mineral Petrol,1997,130(1):66-80 被引 1    
14.  Kyser T K. The effects of liquid immiscibility and thermal diffusion on oxygen isotopes in silicate liquids. Contrib Mineral Petrol,1998,133(4):373-381 被引 7    
15.  Yang X S. Experimental study on dehydration melting of natural biotite-plagioclase gneiss from high Himalayas and implications for Himalayan crust anatexis. Chin Sci Bullet,2001,46(10):867-871 被引 12    
16.  Richter F M. Magnesium isotope fractionation in silicate melts by chemical and thermal diffusion. Geochim Cosmochim Ac,2008,72(1):206-220 被引 24    
17.  Ding X. Different mobility of Nb and Ta along a thermal gradient. Geochim Cosmochim Ac,2007,71(15):A226 被引 2    
18.  Huang F. Chemical and isotopic fractionation of wet andesite in a temperature gradient:Experiments and models suggesting a new mechanism of magma differentiation. Geochim Cosmochim Ac,2009,73(3):729-749 被引 18    
19.  Huang F. Isotope fractionation in silicate melts by thermal diffusion. Nature,2010,464(7287):396-400 被引 22    
20.  Ding X. Natural and experimental constraints on formation of the continental crust based on niobium-tantalum fractionation. Int Geolog Rev,2009,51(6):473-501 被引 24    
引证文献 3

1 常翱飞 热扩散驱动的元素分异和同位素分馏: 一种不容忽视的硅酸盐成分分异机制 岩石学报,2020,36(1):99-112
被引 1

2 程志康 双向活塞圆筒装置19 mm外径样品组装的压强和温度标定 高压物理学报,2022,36(1):013301
被引 0 次

显示所有3篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号