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A new method affects the self-crystalline of crystals


IMAGE CREATED: The illustration shows carrying a piece in the shape of a (hemisphere) cup pulling slowly back into ellipsoid when it is heated and returned to cup making when cooling. This item also shows …
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Credit: University of Luxembourg

In melting crystals, molecules destabilize their behavior. Researchers from Luxembourg University have found a way of fixing states, allowing new materials and new technical applications such as artificial muscles for soft robots. They published their findings in the scientific magazine Science Developments.

Professor Jan Lagerwall of Luxembourg University researches crystal crystal features, which may be in many places ranging from cell tops in the body to exhibitions in many electronic devices. The content includes movement and flexibility, as is irritability and a long-term order for molecules; the second thing is normal in hard crystals. This causes amazing features that make complex crystals so complex that the selection for important positions can be done with nature and billblazer companies.

Much property is dependent on the setting of molluscs. From the late 1930s, physics use a mathematical model to explain a liquid crystalline mollusc order. A parameter gives a order as to how many are called the molecules. This model uses a positive field to describe the melting crystals that we were used to. It can also specify a negative area that describes a "pre-ordered" state, where the molecules will avoid a particular route rather than linking it to it.

So far, this negative range was still non-barbarous, because a loud crystal didn't create a state that caused out in use. Typical vibrations for fluorine crystals show that such a situation is achievable, but not sustainable. "You can compare this to a slide with a large light lump in. You can be slower when you reach the lump, in our case the unstable state unstable, but that's not enough until you stop, so you go down the road to a stable stable, the smallest of energy power, where you think you're ready to stop it slowly.

This is exactly what V.S.R. Jampani, the lead author of the paper, won colleagues for the first time in their survey. "The trick to stop the system from reaching minimum power level is to slow down the net in a connected network while it is dispersed. a normal separation ', said Professor Jampani. "This network was then stretched into either side within a plane, or then piled out onto a single track just outside the plane, until the molecules that are present are connecting the network to the aircraft, but without specific direction in that aircraft. "The loader is conditioned with the Lion crystal level forms and, as a result of the current, In a different aircraft, it shall accept the condition of a negative parameter of the atmosphere where the molecules avoid the normal direction of the aircraft. "This crystal option has no choice but to stay with the minimum energy level, as the network is reaching minimum energy power," said Lagerwall.

When the network is strengthened with a second round of polymerization, they can be carried as a temperature inspection. "Crystal flow networks interesting for a parameter are a positive and a negative order, with the arrangement – or subdivision – in combination with the polymer network allowing them to naturally change their shape in response. T Changes in temperature, effectively rubber, that stretches or relaxes independently, without anyone using force, "said Professor Lagerwall. Liquid crystal rubber rollers are likely to be in direct contrast to those of ordinary liquid crystal rubber. "Strangely, when a typical liquid crystal rubber shows a special color between the suspended poles, the final order parameter shows the uniform color: a rubber ordering a parameter extending on the first road and its width. fall in the rectangular plane, "Lagerwall tells.

Researchers created crystalline rubber rubbings of a negative size fragments of a spiral shell, then cut into small pieces with different shapes. Depending on the way in which the cutting has been made, various movements can be made to bring about a shape, showing that the system can work as an "actuator" softly, effectively the artificial feasts. Because the negative and renal crystal rubbers work in different ways, this opens for interesting ways to bring both together, for example, an actor to compare more effectively, for example robots soft. When the actuator slowly responds slowly, the negative order is moved quickly, and vice versa. From a basic viewpoint of intelligence, the physical state of a molecular crystalline state as previously reported is opened for many interesting experiments and the development of theory for the conduct of self-organized soft objects.


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