Fig. 1. Cross section of Paris-Edinburgh press type V(left) and type VX(right). ① Hydraulic fluid inlet; ② cylinder; ③ piston; ④ O-ring seal; ⑤ load frame; ⑥ anvils; ⑦ TC backing plates(seats); ⑧ breech; ⑨ front collimator; ⑩ nut; ⑪ top platen; ⑫ tie rod; ⑬ backing disc; ⑭ steel spacer.巴黎-爱丁堡压机V型(左图)和VX型(右图)的横截面示意图^[13].　①液压入口; ②油缸; ③油腔; ④O型密封圈; ⑤加压主体框架; ⑥压砧; ⑦底座; ⑧后座; ⑨光路通孔; ⑩螺母; ⑪上压块; ⑫螺杆; ⑬垫片; ⑭钢柱

Fig. 2. Top view schematic of the HPND at CMRR.高压中子衍射谱仪布局图

Fig. 3. Hydraulic pump and mobile platform.单缸柱塞泵与定位系统实物图

Fig. 4. The single toroidal anvil (left) and double toroidal anvil (right).单凹曲面压砧(左)与双凹曲面压砧(右)实物图

Fig. 5. The single toroidal (up) and double toroidal (down) assemblies with anvil, gasket, and sample.压砧、封垫和样品组装示意图

Fig. 6. Picture of the gasket before compression (a)−(c) and after compression (d)−(f): (a) Gasket of DT anvil before compression; (b) gasket of ST anvil before compression; (c) gasket of ST anvil before compression with sample; (d) gasket of DT anvil after compression; (e) gasket of ST anvil before compression; (f) gasket of ST anvil after blowing out.加压前封垫(a)—(c)与加压后封垫(d)—(f)实物图　(a) 加压前双凹曲面封垫组装; (b) 加压前单凹曲面封垫组装; (c) 加压前单凹曲面封垫与样品; (d) 加压后双凹曲 面封垫; (e) 加压后单凹曲面封垫; (f) 放炮后单凹曲面封垫

Fig. 7. Diagram of loading forces-times curve.加压曲线示意图

Fig. 8. Neutron diffraction spectra of different loading forces and different assemblies.不同压力下的中子衍射谱

Fig. 9. Sample pressures-loading forces curves.样品压力随负载压力的变化曲线

Fig. 10. Comparison of the thickness of gaskets before and after compression.加压前后封垫的厚度对比

Table 1. Types of Pairs-Edinburgh presses and principal characteristics^[13]. Capacity is the maximum load in tons. All dimensions are in mm.

Table 2. The lattice constant, volume, and sample pressures obtained by fitting diffraction peak at different loading force.

Table 3. The thickness of gaskets before and after compression. #1, #2 and #5 are the gaskets without blowing out during compression. #3, #4 are the gaskets with blowing out.