Search results for keyword: symmetry
roundness
Roundness is a mathematical concept in two-dimensional geometry that indicates the level of smoothness of a shape. Roundness is also known as curvature or curvature arc. Basically, when you examine a circle, you can see that it has a perfect roundness because it follows a precise set of mathematic......
22/06/2023 
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Sophie
Crystallographic Characteristics of (Mn,Fe)S Single Crystals
MnFeS Single Crystal Crystallography
MnFeS is an iron-manganese sulfide with a nominal formula of MnFe2S4, which has orthorhombic crystal structure. This type of mineral is often found in nature, with abundant occurrences in the Western United States. Because of its ideal crystal structure, MnFeS......
The style of dendrite
Amethyst is a beautiful, shimmering crystal that has been used by people for thousands of years. Initially prized by the ancient Greeks and Romans, the mesmerizing crystal is said to hold spiritual properties and healing powers, used both for its beauty and its healing abilities. It often comes in......
A brief introduction to the metallographic structure of lower bainite (lower B)
Lower B Field
Lower B field is a type of grain boundary microstructure that can be observed in alloys. It is generated when an alloy solidifies in a directional cooling process and the grains are stretched and parallel or nearly parallel. The lower B field has a linear boundary pattern consistin......
Basic Principles of Phase Contrast Microanalysis and Its Application in Metallographic Analysis
Background
X-ray diffraction (XRD) is a powerful tool used in the fields of chemical and physical analysis, crystallography, and mineralogy. XRD is a powerful and well-developed technique used to characterize the crystal structure, atomic and molecular arrangement, and other structural and chemic......
Observation of deformation twins
Observations of Polymorphism in Crystals
Crystallography is the study of the structure and behavior of crystals. Crystals are solids whose atoms, molecules or ions are arranged in an ordered pattern that repeats itself in three dimensions. This repeating pattern results from the laws of symmetry,......
Single-phase polycrystalline equiaxed grain structure
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Polycrystalline materials consist of many single crystals or grains of various sizes and shapes. Grains are the unitary regions of a polycrystalline material, where the crystal lattice is continuous and the arrangement of atoms remains unchanged. An aggregate of grains constituting a real materi......
Analysis of Longitudinal Crack of 195 Connecting Rod Along Parting Surface
Fatigue Analysis of Longitudinal Crack on the Split Module of a Crank Shaft of A 155/195 Models
Abstract
The 155/195 models of a crank shaft used an 169 split module to create an open-ended mating surface between two connecting arms. This split module was used to reduce overall manufacturing tim......
off square, off torque
The Difference between Trapezoids and Parallelograms
A parallelogram is a four-sided polygon with two pairs of parallel opposite sides. A trapezoid is a four-sided polygon with two sides parallel and two sides not parallel. Both shapes belong to the family of quadrilaterals. While they share cert......
Uneven wall thickness of extrusion products
Uneven Wall Thickness of Extrusion Products
Extrusion is a metalworking process in which high temperature, pressure and speed are applied to metal alloys to conduct plastic deformation. It is widely used in metalworking, as it is cheaper and can produce components with greater complexity and stre......
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