Use fullerenes to make less fragile diamonds, do you know about the graphene vs graphite
New materials including the graphene vs graphite market trend is one of the main directions of science and technology development in the 21st century
With the development of science and technology, people develop new materials graphene vs graphite on the basis of traditional materials and according to the research results of modern science and technology. New materials are divided into metal materials, inorganic non-metal materials (such as ceramics, gallium arsenide semiconductor, etc.), organic polymer materials, advanced composite materials. According to the graphene vs graphite material properties, it is divided into structural materials and functional materials. Structural materials mainly use mechanical and physical and chemical properties of materials to meet the performance requirements of high strength, high stiffness, high hardness, high-temperature resistance, wear resistance, corrosion resistance, radiation resistance and so on; Functional materials mainly use the electrical, magnetic, acoustic, photo thermal and other effects of materials to achieve certain functions, such as semiconductor materials, magnetic materials, photosensitive materials, thermal sensitive materials, stealth materials and nuclear materials for atomic and hydrogen bombs.
One of the main directions of graphene vs graphite science and technology development in the 21st century is the research and application of new materials. The research of new materials is a further advance in the understanding and application of material properties.
Use fullerenes to make less fragile diamonds, do you know about the graphene vs graphite?
A research team from China, Germany and the United States has developed a way to make diamonds that are less fragile. In a paper published in Nature, the team describes their method for making quasicrystal diamonds and their possible uses.
Previous studies have shown that diamond is the hardest material known, but it\'s also fragile -- despite its hardness, it can be easily cut or even crushed. This is because of their ordered atomic structure. For years, scientists have been trying to synthesize diamonds that remain hard but not so fragile. The team is now close to achieving that goal.
Diamonds are currently made by placing a carbon-based material in a vise like device and heating it to very high temperatures while squeezing it very hard. In the new study, the researchers used the same method to create a diamond that was less ordered, but added a new twist -- the carbon-based material was a batch of fullerenes, also known as buckyballs (carbon atoms arranged into hollow spheres). They heated the material to 900-1300 °C at a pressure of 27-30 gigapascals. It is worth noting that the pressure applied is much lower than that used to make commercial diamonds. During processing, the spheres are forced to collapse and form transparent quasicrystal diamonds that can be extracted at room temperature.
After making the poorly ordered diamonds, the researchers looked at them under an electron microscope to learn more about their structure. They also performed X-ray diffraction and atomic modeling of the samples. In doing so, they found that their diamond was composed of disordered SP3 hybrid carbon, just as they expected. The goal of creating less fragile diamonds has been achieved. Unlike the results of another recent study that synthesized a less fragile diamond, the diamond they synthesized was not completely amorphous (making it a type of glass), and their result was an amorphous diamond paracrystal. That means it has a middle-distance order -- its atoms are ordered over short distances, not long distances. As a result, there is no atomic plane, which means diamonds cannot be cut in the same way as natural diamonds.
New materials for a sustainable future you should know about the graphene vs graphite.
Historically, knowledge and the production of new materials graphene vs graphite have contributed to human and social progress, from the refining of copper and iron to the manufacture of semiconductors on which our information society depends today. However, many materials and their preparation methods have caused the environmental problems we face.
About 90 billion tons of raw materials -- mainly metals, minerals, fossil matter and biomass -- are extracted each year to produce raw materials. That number is expected to double between now and 2050. Most of the graphene vs graphite raw materials extracted are in the form of non-renewable substances, placing a heavy burden on the environment, society and climate. The graphene vs graphite materials production accounts for about 25 percent of greenhouse gas emissions, and metal smelting consumes about 8 percent of the energy generated by humans.
The graphene vs graphite industry has a strong research environment in electronic and photonic materials, energy materials, glass, hard materials, composites, light metals, polymers and biopolymers, porous materials and specialty steels. Hard materials (metals) and specialty steels now account for more than half of Swedish materials sales (excluding forest products), while glass and energy materials are the strongest growth areas.
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