Burnley P C, Getting I C
High Pressure Science and Engineering Center and Department of Geoscience, University of Nevada, Las Vegas, Las Vegas, Nevada 89154, USA.
Rev Sci Instrum. 2012 Jan;83(1):014501. doi: 10.1063/1.3677844.
An internal heater capable of 1400 K has been developed for use with a gas piston cylinder apparatus capable of achieving in excess of 3 GPa with an argon pressure medium. The heated gas piston cylinder produces a truly hydrostatic environment for samples up to 3 mm in diameter and 8 mm in length. The apparatus can be used to study systems that are sensitive to stress or samples that cannot withstand shear tractions. The gas piston cylinder apparatus was developed in an effort to reduce experimental uncertainty in the pressure scale and has been used to improve understanding of the Bi I-II transition at 298 K. We estimate that the pressure during a high temperature soak in the gas piston cylinder can be known to within ±0.01 GPa.
已开发出一种能达到1400 K的内部加热器，用于配备氩气压力介质、能够实现超过3 GPa压力的气体活塞圆筒装置。这种加热的气体活塞圆筒为直径达3 mm、长度达8 mm的样品营造出真正的静水压力环境。该装置可用于研究对压力敏感的系统或无法承受剪切力的样品。开发气体活塞圆筒装置是为了降低压力标度的实验不确定性，并已用于增进对298 K下铋I-II转变的理解。我们估计，在气体活塞圆筒中进行高温浸泡时的压力，其误差范围在±0.01 GPa以内。
