Recently, the international research team led by researcher Zeng qiaoshi of Beijing high pressure science research center has invented a general "diamond nano ballast" composite material, which can realize permanent storage of materials under high pressure without the support of traditional pressure devices. This breakthrough has taken a key step for the practical application of high-pressure materials. This major innovative achievement was published in the international academic journal Nature on August 17. Zeng qiaoshi said: "in addition to gas, the concept of 'diamond nano high pressure chamber' can also be applied to various forms of initial target materials. We will try to encapsulate solid materials, such as high-temperature superconductors, in future research. Thus, the excellent properties of high-pressure materials are no longer limited to basic research in the laboratory, but can be widely used in daily life like atmospheric pressure materials." It is reported that materials are the cornerstone of modern science and technology. Therefore, the progress and innovation of science and technology often rely heavily on the development of new and advanced materials with special properties. For a specific material, only changing the external pressure it bears can often significantly change its properties, thus providing a broad space and possibility for exploring optimized or even brand-new material properties. However, it is regrettable that most of the excellent properties found under high pressure can only exist under high pressure. Therefore, the solid and thick pressurizing device required to generate and maintain pressure becomes an insurmountable barrier between high-pressure materials and practical applications. In the past century, scientists have made continuous efforts to overcome this difficulty. They have extensively studied different material systems and found that there is a special metastable material synthesized under high pressure that can be kept to normal pressure after pressure relief. A typical example is that diamond synthesized from ordinary carbon materials under high pressure can still exist under normal pressure after the external pressure is removed, and maintain its shiny appearance and various excellent properties. Unfortunately, there are few such lucky examples. Therefore, high-pressure materials are still important objects for basic research in the laboratory, but rarely can they be applied in industry on a large scale and play a wide role in people's daily life. A new method has been invented by the cooperative research team of Beijing high voltage Science Research Center, Stanford University and Argonne National Laboratory. Using this method, they succeeded in keeping the extremely high pressure state and its properties of the difficult to bind gas to the atmospheric environment. They first pressurized a carbon material called "glass carbon" rich in nano holes with argon to a high pressure of about 50 gigapascals (500000 atmospheres), and then heated the glass carbon to about 1800 degrees Celsius. Glass carbon under normal pressure is a kind of material with good air tightness. However, they found that under high pressure, glass carbon can absorb argon into its nano cavities like a sponge. High pressure and high temperature can promote the transformation of high-pressure glass carbon into the hardest natural substance - diamond. Then, when the pressure and temperature were removed and the sample was taken out from the pressure device, it was unexpected that the large number of nano holes contained in the diamond sample under normal pressure permanently sealed argon under extremely high pressure, forming a large amount of high-pressure nano argon embedded in the diamond matrix