by : cristhian
Materials science involves investigating the relationship between the structure and the properties of materials. From the perspective of chemistry, materials science develops synthesis processes for the manufacture of functional and structural materials, sets out the relationship between the structure and their properties, as well as evaluating the applications of the materials generated. Within the materials science, nanotechnology has sparked a deep interest in the scientific community because these materials have properties very different from those observed in macroscopic scale materials, including the electrical conductivity, magnetic properties, optical and catalytic activity, which makes the candidate materials for countless applications.
Solid carbon, springy and light (Areographen)
The graphene is a material known for its unique properties, including its weight, since it is a superlight material. Well, from the have succeeded in creating an aerogel that have called aerographen and is currently the lighter material of the world. With a density of only 0.16 milligrams/cm3, this material has been created by scientists at Zhejiang University in China.
The creators claim that one of their utilities would clean toxic waste dumping in the sea, thanks to the ability of this material to absorb up to 900 times its own weight, since it acts like a sponge, still its composition of a 99 percent, air, as a result also its lightness.
According to the researcher in charge of the project (Gao Chao), the aerographen is highly resistant and flexible, able to be compressed and return to their initial state multiple times. Aerogel is a gel-like material, which has a liquid component that is exchanged for gas, this results in a solid substance but very porous and light.
This is not the first time you use this technique, had already been created previously substances such as aerographite, which has been dethroned as the world's lightest, with a density of 0.18 mg/cm3, for the current aerographen, of 0.16 mg/cm3.
Titanium Foam
The foam of titanium is a material that acts as a series of implants made with the material of titanium and have foam way, hence the name of the new material. This was announced by a group of scientists from the "Fraunhofer Research Group" (Germany) and was known as "TiFoam". These new structures and have been created to replace the old titanium orthopedic implants.
Differences between the classic implant titanium and titanium foam:
Classic Implant: This implant is placed next to the affected bone and fulfills his mission. The bad thing that has this type of implant is that many times is more rigid than the bone by the titanium. This causes that the force on the extremity of the implant and not on the bone. This is going to be losing mobility and strength, and is gaining damage.
Titanium Foam: the best structure is clinging to the bone. From the beginning, the patient will be carrying out exercises to get force and so the bone is going to become accustomed to the level of the blood vessels and cells are fed from the structures of the sparkling implant. The bone is camouflaged with the foam.
