典型文献
In-situ ultrasonic calibrations of pressure and temperature in a hinge-type double-stage cubic large volume press
文献摘要：
Here,simultaneous in-situ calibration of pressures and temperatures was performed in a hinge-type second-stage cubic large volume press(LVP)up to 15 GPa and 1400 K by an acoustic travel-time approach.Based on the recently reported P-tS and P-T-tp-tS equations for Al2O3 buffer rod,the cell pressures and temperatures in the chamber of LVP were in-situ determined,in comparison with those by conventional off-line(or fixed-points)pressure calibration method and direct thermocouple measurement,respectively.It is found that the cell pressures of the LVP chamber are significantly reduced after annealing at simultaneous high pressures and high temperatures,owing to the stress relaxation as accumulate in the LVP chamber.This acoustic travel-time method is verified to be a good way for precise determination of thermal(cell)pressures at high temperature conditions,and is of great importance and necessity to conduct in-situ physical property measurements under extreme high P-T conditions,especially when the precious synchrotron x-ray/neutron diffraction beams are not available.
文献关键词：
中图分类号：
作者姓名：
Qingze Li;Xiping Chen;Lei Xie;Tiexin Han;Jiacheng Sun;Leiming Fang
作者机构：
Key Laboratory for Neutron Physics,Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China
文献出处：
引用格式：
[1]Qingze Li;Xiping Chen;Lei Xie;Tiexin Han;Jiacheng Sun;Leiming Fang-.In-situ ultrasonic calibrations of pressure and temperature in a hinge-type double-stage cubic large volume press)[J].中国物理B（英文版）,2022(06):306-311
A类：
tS
B类：
In,situ,ultrasonic,calibrations,hinge,type,double,stage,cubic,large,volume,Here,simultaneous,pressures,temperatures,was,performed,second,LVP,GPa,by,acoustic,travel,approach,Based,recently,reported,tp,equations,Al2O3,buffer,rod,cell,chamber,were,determined,comparison,those,conventional,off,line,fixed,points,method,direct,thermocouple,respectively,It,found,that,are,significantly,reduced,after,annealing,high,owing,stress,relaxation,accumulate,This,verified,good,way,precise,determination,thermal,conditions,great,importance,necessity,conduct,physical,property,measurements,under,extreme,especially,when,precious,synchrotron,ray,neutron,diffraction,beams,not,available
AB值：
0.54394
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