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Carbon is an element that seems to have infinite possibilities. This is because the electronic configuration of carbon allows for a large number of self-bonding combinations, resulting in a large number of materials of varying nature. For example, transparent super-hard diamonds, opaque graphite for pencil box industrial lubrication, etc. are all composed of only carbon.
In this international team, scientists seal and pressurize the glassy carbon in the form of a disordered structure. The glass-carbon raw material is heated to a temperature of about 1800 degrees Fahrenheit by a pressure of 250,000 times normal atmospheric pressure to form a new strong and elastic carbon. Their findings have been published in the advancement of science.
Scientists have previously tried to place glassy carbon at high pressure and room temperature (known as cold pressing) or at very high temperatures. However, the so-called cold synthetic materials cannot maintain their structure under ambient pressure, and nano-diamonds are formed under extremely hot conditions.
This newly formed carbon consists of a graphite-like and diamond-like binding motif that forms this unique combination of properties. Under high pressure synthesis conditions, the disordered layers in the glassy carbon are distorted, fused, and joined in a variety of ways. This process forms an overall structure that lacks a long-range spatial order but has a short-range spatial structure at the nanoscale.
Yansheng Zhao, a professor at Yanshan University, explained: “Similarly, such lightweight materials with high strength and robust elasticity are urgently needed for applications where weight of materials is more important than weight reduction. In addition, we believe that this synthesis can be The method is based on the creation of other special forms of carbon and completely different categories of materials."
Original paper: DOI: 10.1126/sciadv.1603213
This article was translated from phys and published by translator CliffBao based on the Creative Commons Agreement (BY-NC).
The new form of carbon is hard and elastic
Abstract A research team, including Yanshan University and the Carnegie Institution of Washington, developed an ultra-strength, lightweight carbon that is elastic and electrically conductive. This unique material can be used in a variety of applications, from aerospace engineering to military armor. Carbon is a kind of seemingly has no...
A research team, including Yanshan University and the Carnegie Institution of Washington, developed an ultra-strength, lightweight carbon that is elastic and electrically conductive. This unique material can be used in a variety of applications, from aerospace engineering to military armor.