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Pole figures displaying crystallographic texture of gamma-TiAl in an alpha2-gamma alloy, as measured by high energy X-rays. [1] In materials science and related fields, crystallographic texture is the distribution of crystallographic orientations of a polycrystalline sample. A sample in which these orientations are fully random or is amorphous ...
Coquille board, also known as stipple board, is a type of drawing paper with a pebbled texture. The grain is impressed into the uncoated paper during manufacture. [ 1 ] Used with a soft lithographic crayon or carbon pencil , coquille produces a shading effect similar to hand stippling in a fraction of the time. [ 2 ]
By definition, the syntax (hkℓ) denotes a plane that intercepts the three points a 1 /h, a 2 /k, and a 3 /ℓ, or some multiple thereof. That is, the Miller indices are proportional to the inverses of the intercepts of the plane with the unit cell (in the basis of the lattice vectors).
Phengite is a series name for dioctahedral micas of composition K(Al,Mg) 2 (OH) 2 (Si,Al) 4 O 10.It is common for Mg or Fe 2+ to substitute for Al on the Y site and a corresponding increase in Si on the Z site in the mica group formula X 2 Y 4–6 Z 8 O 20 (OH, F) 4.
This is based on the fact that a reciprocal lattice vector (the vector indicating a reciprocal lattice point from the reciprocal lattice origin) is the wavevector of a plane wave in the Fourier series of a spatial function (e.g., electronic density function) which periodicity follows the original Bravais lattice, so wavefronts of the plane wave ...
In computer graphics, a texel, texture element, or texture pixel is the fundamental unit of a texture map. [1] Textures are represented by arrays of texels representing the texture space, just as other images are represented by arrays of pixels. Texels can also be described by image regions that are obtained through simple procedures such as ...
This angle may be calculated from the dot product of the two vectors, defined as a ⋅ b = ‖ a ‖ ‖ b ‖ cos θ where ‖ a ‖ denotes the length of vector a. As shown in the diagram, the dot product here is –1 and the length of each vector is √ 3 , so that cos θ = – 1 / 3 and the tetrahedral bond angle θ = arccos ...
Change the filename extension to “.svg” or choose the file type Scalable Vector Graphics / SVG (*.svg *.svgz), and click Save. Set the Scale value to 112. Check the Use Alpha Channel box and, finally, click Save.