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3GPa熔融盐固体介质三轴高温压力容器的轴压摩擦力标定

DOI: 10.11858/gywlxb.2013.01.002, PP. 19-28

Keywords: 摩擦力标定,压力容器,熔融盐,高温高压,轴压摩擦力

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Abstract:

在温度标定和围压标定的基础上,采用轴压循环方法,对3GPa固体介质三轴高温高压实验系统的轴压摩擦力进行了标定,分析了围压、温度、轴向位移速率、装样方式(盐套类型)等实验条件对轴压摩擦力的影响。结果表明:静摩擦力、挤压摩擦力和滑动摩擦力3种轴压摩擦力对轴向应力的影响不同,其中静摩擦力和挤压摩擦力对轴向应力的影响很小,影响应力精度的主要是滑动摩擦力。静摩擦力及滑动摩擦力与围压正相关;静摩擦力与轴向位移速率正相关,但受其影响较小,滑动摩擦力不受其影响;静摩擦力和滑动摩擦力与温度负相关,并且受其影响较显著;盐套类型对轴压摩擦力的影响较大,当实验条件接近盐套熔点时,轴压摩擦力显著降低,当样品周围的盐套处于熔融状态时,轴压摩擦力最小。基于此,确定了标定轴压摩擦力的具体步骤,并对角闪岩的应力-应变曲线进行了轴压摩擦力标定。对比轴压摩擦力校正前、后的应力-应变曲线发现,经过轴压摩擦力校正的应力-应变曲线能更好地反映样品的实际变形情况。

References

[1]  Rybacki E, Renner J, Konrad K, et al. A servohydraulically-controlled deformation apparatus for rock deformation under conditions of ultra-high pressure metamorphism [J]. Pure Appl Geophys, 1998, 152(3): 579-606.
[2]  Tullis T E, Tullis J. Experimental rock deformation techniques [J]. Geophys Monogr Ser, 1986, 36: 297-324.
[3]  Green H W, Borch R S. A new molten salt cell for precision stress measurement at high pressures [J]. Eur J Mineral, 1989, 1(2): 213-219.
[4]  Tingle T N, Green H W, Young T E, et al. Improvements to Griggs-type apparatus for mechanical testing at high pressures and temperatures [J]. Pure Appl Geophys, 1993, 141(2/3/4): 523-543.
[5]  Ingrin J, Doukhan J C. A Griggs deformation apparatus set up at Lille [J]. Terra Nova, 1991, 3(6): 603-606.
[6]  Gleason G C, Tullis J. A flow law for dislocation creep of quartz aggregates determined with the molten salt cell [J]. Tectonophysics, 1995, 247(1/2/3/4): 1-23.
[7]  Gleason G C, Tullis J. Improving flow laws and piezometers for quartz and feldspar aggregates [J]. Geophys Res Lett, 1993, 20(19): 2111-2114.
[8]  Holyoke I C W, Kronenberg A K. Accurate differential stress measurement using the molten salt cell and solid salt assemblies in the Griggs apparatus with applications to strength, piezometers and rheology [J]. Tectonophysics, 2010, 494(1/2): 17-31.
[9]  Zhou Y S, He C R, Song J, et al. An experiment study of quartz-coesite transition at differential stress [J]. Chinese Science Bulletin, 2005, 50(5): 446-451.
[10]  Han L, Zhou Y S, Dang J X, et al. Temperature calibration for 3 GPa molten salt medium triaxial pressure vessel [J]. Chinese Journal of High Pressure Physics, 2009, 23(6): 407-414. (in Chinese)
[11]  韩亮, 周永胜, 党嘉祥, 等. 3 GPa熔融盐固体介质高温高压三轴压力容器的温度标定 [J]. 高压物理学报, 2009, 23(6): 407-414.
[12]  Han L, Zhou Y S, He C R, et al. Confined pressure calibration for 3 GPa molten salt medium triaxial pressure vessel under high pressure and temperature [J]. Chinese Journal of High Pressure Physics, 2011, 25(3): 213-220. (in Chinese)
[13]  韩亮, 周永胜, 何昌荣, 等. 3 GPa熔融盐固体介质高温高压三轴压力容器的围压标定 [J]. 高压物理学报, 2011, 25(3): 213-220.
[14]  Dang J X, Zhou Y S, He C R. Pressure calibration for the solid medium vessel of piston-cylinder apparatus under high pressure and high temperature [J]. Seismology and Geology, 2007, 29(1): 133-143. (in Chinese)
[15]  党嘉祥, 周永胜, 何昌荣. 活塞-圆桶式固体介质高温高压实验容器的压力标定方法 [J]. 地震地质, 2007, 29(1): 133-143.
[16]  Liu P, Tong Y X, Yang Q Q. Molten salt systems and the new developments for the application of molten salts [J]. Electrochemistry, 2007, 13(4): 351-359. (in Chinese)
[17]  刘鹏, 童叶翔, 杨绮琴. 熔盐体系及有关应用的新进展 [J]. 电化学, 2007, 13(4): 351-359.
[18]  Stipp M, Tullis J. The recrystallized grain size piezometer for quartz [J]. Geophys Res Lett, 2003, 30(21): 2088.
[19]  Zhou Y S, Jiang H K, He C R. Experiments of brittle-plastic transition and instability modes of Juyongguan granite at different temperatures and pressures [J]. Earthquake Research In China, 2003, 17(2): 169-182.
[20]  Jiang H K, Zhang L, Zhou Y S. Correction of stress-strain relationship in triaxial compression tests with solid confining pressure medium [J]. Seismology and Geology, 2001, 23(3): 471-474. (in Chinese)
[21]  蒋海昆, 张流, 周永胜. 固体介质三轴实验中样品半延性-延性变形对应力曲线影响的修正 [J]. 地震地质, 2001, 23(3): 471-474.

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