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What has the author Watts written?

Watts has written: 'Point defects in crystals' -- subject(s): Crystals, Defects


Why defects in crystals are called thermodynamic defects?

Defects in crystals are called thermodynamic defects because they influence the overall energy or thermodynamic properties of the crystal lattice. These defects can affect the stability, entropy, and other thermodynamic properties of the crystal structure. They are considered in the context of thermodynamics as they impact the equilibrium state and behavior of the crystal material.


What are crystals with line defects thermally unstable?

Crystals with line defects are thermally unstable as its ethalpy change increases more than its entropy change. This leads to an increased in Gibbs free energy.


Which point defect lowers the density of crystals?

Any change in the configuration of the lattice of the crystal which causes the crystal structure to deviate from the ideal structure is called a crystal structure. It is of the following types - Point defects Line defects Surface defects volume defects


What has the author Lewis T Chadderton written?

Lewis T. Chadderton has written: 'Nucleation of damage centres during ion implantation of silicon' -- subject(s): Crystals, Defects, Nucleation, Silicon crystals 'Fission damage in crystals' -- subject(s): Crystals, Effect of radiation on, Nuclear fission


Where defects can occur in crystal structures?

Within a crystal there are point defects and line defects; point defects are missing or extra lattice points within the crystal lattice (vacancies or interstitials), line defects may be due to an 'extra' half lattice plane within the crystal. The end of a line defect plane is known as an edge dislocation, screw dislocations occur where part of a crystal is displaced over one lattice direction and is therefore twisted. Dislocation loops can occur where an edge and a screw dislocation intersect.


Why real crystal have more entropy than ideal crystal?

Real crystals have more entropy than ideal crystals because they have imperfections such as vacancies, dislocations, and grain boundaries that introduce disorder in their structure. These defects provide more ways for atoms or molecules to arrange themselves, increasing the disorder and thus the entropy of the system. Ideal crystals, on the other hand, have a perfect and orderly arrangement of atoms with no defects, resulting in lower entropy.


Why do different crystals have different colors?

Different crystals have different colors due to variations in their chemical composition and atomic structure. The way light interacts with these properties leads to the absorption and reflection of certain wavelengths, resulting in the observed colors. Impurities and defects in the crystal lattice can also influence its color.


What has the author A P Zhernov written?

A. P. Zhernov has written: 'Metally s nemagnitnymi primesnymi atomami' -- subject(s): Defects, Metal crystals, Physical metallurgy


Why should Recrystallization cool slowly?

Recrystallization should cool slowly to allow the crystals to form and grow gradually, producing larger and more pure crystals. Rapid cooling can lead to the formation of small crystals or impurities being trapped within the crystal lattice, affecting the purity of the final product.


Malachite specimen a cooled more rapidly than malachite specimen b when it formed what can you predict about the crystals in spicimen a?

Malachite specimen A likely has smaller, more numerous crystals due to its quicker cooling rate. Rapid cooling can restrict crystal growth, resulting in finer crystals being formed. Additionally, the crystals in specimen A may be more prone to imperfections or defects compared to those in specimen B.


How do crystals need to be grown to insure the least amount of defects?

well crystals like quartz grow under extreme pressure and heat but impurities like other colors are caused by trace impurities of other elements such as zinc, copper, aluminium, titanium and a couple others.