Development of small-sized high-pressure apparatus for synthetic studies

采用小型立方型多砧装置，产生4 GPa和500℃的高压高温条件，该装置最初是为高压低温实验而研制的。在夹紧压机的条件下，当温度从室温升高到300℃，温度为4.5GPa时，压降可以忽略不计。利用该装置在高压和高温条件下获得了能量色散模式和角度色散模式下的x射线衍射曲线。

High pressure and high temperature conditions of 4 GPa and 500℃ were generated using a small-sized cubic-type multi-anvil apparatus, which was originally developed for high-pressure and low-temperature experiments. The drop in pressure was negligible as the temperature was increased from room temperature to 300℃ at 4.5GPa under the condition when the press was clamped. X-ray diffraction profiles were obtained in situ at high-pressure and high-temperature conditions both in the energy dispersive mode and in the angle dispersive mode using the apparatus.