Anisotropic effects include molecular orientation and filler particle alignment induced by shear stress during the injection molding process.
When anisotropic effect is observed in which Bond?
The anisotropic effect depends upon the orientation of the molecule with respect to the applied field. In fact, a proton experiences three different fields, the applied field, the induced magnetic field generated by σ-electrons and the induced magnetic field generated by π-electrons.
What is the meaning of anisotropy?
noun. Physics. the fact of having unequal physical properties along different axes :Even crystals with a simple cubic lattice structure, such as salt, display optical anisotropy; that is, the light propagates differently in different directions. Botany.
What is magnetic anisotropic effect?
Magnetocrystalline anisotropy is the energy necessary to deflect the magnetic moment in a single crystal from the easy to the hard direction . The easy and hard directions arise from the interaction of the spin magnetic moment with the crystal lattice (spin-orbit coupling).
What is anisotropic behavior?
Anisotropic behaviour is another common challenge of AM , which results in different mechanical behaviour under vertical tension or compression compared to that of the horizontal direction.
What is anisotropy example?
anisotropic: Properties of a material depend on the direction; for example, wood . In a piece of wood, you can see lines going in one direction; this direction is referred to as “with the grain”. The wood is stronger with the grain than “against the grain”.
Why is anisotropy important?
Because strength anisotropy accompanies nearly every production process and material, it is prudent to consider the effects of a material’s directional variations on a design. ... Material anisotropy was the significant factor in determining the fracture path .
Is Deshielded upfield or downfield?
It is often convienient to describe the relative positions of the resonances in an NMR spectrum. For example, a peak at a chemical shift, δ, of 10 ppm is said to be downfield or deshielded with respect to a peak at 5 ppm, or if you prefer, the peak at 5 ppm is upfield or shielded with respect to the peak at 10 ppm.
What does Deshielding mean?
Deshielding is the opposite of shielding. When we say that an atom is deshielded, we mean that “ A nucleus whose chemical shift has been increased due to removal of electron density, magnetic induction, or other effects .”
Why are aldehydes so Deshielded?
Just like in hydrocarbon benzene, in aldehyde, the induced magnetic field (by the π electrons) in the region where protons are located is oriented in the same direction as the applied field . A smaller field is, therefore, required for resonance resulting in their deshielding.
What is anisotropic field?
The anisotropy field represents the hypothetical field that would be able to align the magnetization perpendicular to the easy direction, the c-axis . It is defined by H a = 2 K 1 / J s 0 , where the anisotropy constant characterizes the associated anisotropy energy.
What is hysteresis explain with diagram?
A hysteresis loop shows the relationship between the induced magnetic flux density B and the magnetizing force H . It is often referred to as the B-H loop. ... This is referred to as the point of retentivity on the graph and indicates the remanence or level of residual magnetism in the material.
What is magnetostrictive used for?
Magnetostrictive materials are used to convert electromagnetic energy into mechanical energy and vice versa . This effect can be used to create sensors that measure a magnetic field or detect a force. The magnetic field or force applied would create a strain in the material, which can be measured.
What is anisotropic stress?
Anisotropic stress in the context of in-situ stress refers to the stresses in a formation that are not isotropic or are directionally dependent . ... The magnitude and direction of these stresses depend on tectonic conditions and influence rock failure.
Is Bone anisotropic?
1. Basic material properties. The material behavior of cortical bone is anisotropic . The strength and tensile/compressive moduli of cortical bone along the longitudinal direction (the direction aligned with the diaphyseal axis) are greater than those along the radial and circumferential directions (Table 1).
Is light anisotropic?
Anisotropy (/ˌæn. ... An example of anisotropy is light coming through a polarizer . Another is wood, which is easier to split along its grain than across it.
