Research Progress of Static Ultra-High Pressure Device

Ultra-high pressure (UHP) technology, a core technique in manufacturing under extreme conditions, has expanded its scope from fundamental research in areas like condensed matter physics and geosciences to practical engineering applications such as superhard material synthesis and high-density energy storage device fabrication. Furthermore, UHP techniques are increasingly being used in cutting-edge fields such as the precise control of energy fields. Despite the surging demand for ultra-high pressure equipment in China, the market share of domestically produced ultra-high pressure equipment remains relatively low due to the technical barriers in large-size cemented carbide sintering. This study systematically reviews the design features and technical limitations of four mainstream static ultra-high-pressure devices: opposed anvil presses, belt-type presses, multi-anvil presses, and split-sphere apparatus. Finally, it presents an outlook on potential future advancements and technological pathways for UHP equipment.