The term "indentation size effect" refers to the phenomenon observed in materials, especially in the field of materials science and mechanical engineering, where the hardness and mechanical properties of a material depend on the size of the indentation made by a hard indenter. This effect is particularly significant in small-scale testing methods such as nanoindentation.
Industrial computed tomography (ICT) is a non-destructive testing (NDT) technique that utilizes X-rays or gamma rays to create detailed 3D images of the internal structures of an object. This technology is widely used in various industries, including manufacturing, aerospace, automotive, and medical devices, to inspect, analyze, and evaluate the integrity of components and materials without causing any damage to them.
Infrared non-destructive testing (NDT) is a technique used to evaluate the properties of materials and structures without causing any damage. This method primarily utilizes infrared (IR) radiation to detect variations in temperature and thermal properties of the materials being inspected. Here are some key aspects of infrared NDT: ### Principles - **Thermal Radiation**: All objects emit infrared radiation based on their temperature. By measuring this radiation, one can infer surface temperatures and identify thermal anomalies.
The Institut für Kunststoffverarbeitung (Institute for Plastics Processing), often abbreviated as IKV, is a research institution in Germany that specializes in the study and advancement of plastics processing technologies. Located in Aachen, the IKV is part of the RWTH Aachen University and serves as a hub for research, development, and education in the field of plastics engineering. The institute focuses on various aspects of plastics processing, including injection molding, extrusion, thermoforming, and additive manufacturing, among others.
Integrated Computational Materials Engineering (ICME) is an interdisciplinary approach that combines materials science, engineering, and computational modeling to design and optimize materials and their processing. The goal of ICME is to achieve a more efficient and innovative materials development process by integrating simulations and computational techniques at various stages of the materials lifecycle, from design to manufacturing to performance assessment.
An interstitial defect refers to a type of point defect in a crystalline structure where an atom or ion occupies a position in the crystal lattice that is not normally occupied by an atom of that kind. In simpler terms, it occurs when extra atoms are inserted into the spaces or "interstices" between the regular lattice sites of a crystal structure. Interstitial defects can occur in various types of materials, including metals, semiconductors, and ionic compounds.
An interstitial site refers to a position or space within a crystal lattice structure that is not occupied by the primary atoms or ions that make up the crystal. Instead, these sites are located between the regular lattice points and can accommodate smaller atoms or ions. Interstitial sites are significant in various fields, including material science, solid-state physics, and chemistry, as they can affect the properties of materials.
Ion Beam Analysis (IBA) is a set of analytical techniques that utilize ion beams to investigate the composition and structure of materials. It involves bombarding a sample with high-energy ions, which can induce various interactions with the atoms in the sample. These interactions can produce secondary particles, X-rays, or backscattered ions, which can be detected and analyzed to provide information about the material's elemental composition, thickness, and structural properties.
Ion implantation is a technique used in materials science and semiconductor manufacturing to introduce impurities, or dopants, into a solid substrate, typically silicon or other semiconductor materials. The process involves the following key steps: 1. **Ion Generation**: Ions of the desired dopant material (such as boron, phosphorus, or arsenic) are created using an ion source. These dopants can alter the electrical properties of the semiconductor.
Isothermal microcalorimetry is an analytical technique used to measure the heat changes associated with physical and chemical processes at constant temperature. It provides insights into various thermodynamic properties of systems, including binding interactions, reaction kinetics, and phase transitions. ### Key Aspects of Isothermal Microcalorimetry: 1. **Principle**: The technique relies on the principle that when a reaction occurs (e.g.
Kagome metal is a type of material known for its unique structural properties, which is often related to its application in various fields, including electronics and materials science. The term "Kagome" originates from a traditional Japanese basketweaving pattern that features a geometric, honeycomb-like structure. In materials science, Kagome structures typically refer to materials that have a two-dimensional lattice arrangement, resembling the Kagome pattern.
The Kaiser effect is a phenomenon observed in materials science and engineering, specifically in the context of the mechanical behavior of certain materials under loading conditions. It refers to the observation that a material, particularly a rock or a similar brittle material, exhibits a characteristic change in its acoustic emission response when subjected to repeated loading and unloading cycles. When a material is subjected to compressive loading, it may initially emit a certain level of acoustic signals due to micro-cracking and other deformation mechanisms.
A Kelvin-Voigt material, also known as a Kelvin-Voigt solid, is a type of viscoelastic material characterized by its combination of elastic and viscous behavior. It is typically modeled as a spring and dashpot in parallel. In the Kelvin-Voigt model: - **Spring (Elastic Element)**: Represents the material's ability to recover its shape after a stress is removed. It obeys Hooke's law, meaning the stress is proportional to strain.
The Kopp–Etchells effect refers to a phenomenon observed in the field of materials science and condensed matter physics, particularly related to the behavior of certain magnetic materials. It describes the interaction between magnetic fields and the electronic states of materials, leading to unique changes in their physical properties, such as electrical conductivity or magnetic susceptibility.
LIGA, which stands for "Lithographie, Galvanoformung, Abformung" in German, is a microfabrication technology used for producing high-precision microstructures. The term translates to "lithography, electroforming, and molding" in English. This technique combines several processes to create complex three-dimensional structures at the microscale.
Landolt–Börnstein is a comprehensive series of reference works that provide data on the physical and chemical properties of materials. It is published by Springer and is part of the "New Series" of Landolt–Börnstein, which has its roots in earlier works initiated by Hans Landolt and Richard Börnstein in the early 20th century.
The Langmuir adsorption model is a theoretical framework used to describe the adsorption of molecules onto solid surfaces. Developed by Irving Langmuir in the 1910s, this model is especially applicable for monolayer adsorption, where it is assumed that adsorption sites on the surface are uniform and that each site can hold only one adsorbate molecule.
The lanthanum aluminate-strontium titanate (LaAlO₃/STO) interface refers to the boundary between the two materials lanthanum aluminate (LaAlO₃) and strontium titanate (SrTiO₃). This interface has gained significant attention in materials science and condensed matter physics due to its interesting electronic properties, particularly in the context of oxide heterostructures.
The Larson-Miller parameter is an important concept in materials science and engineering, particularly for evaluating the time-to-rupture of materials at high temperatures. It is commonly used to assess the creep behavior of metals and alloys, especially in pressure vessels, turbine components, and other high-temperature applications.
The Larson–Miller relation is an empirical relationship used in materials science and engineering to estimate the high-temperature creep life of a material, particularly metals and alloys. It is particularly useful in predicting the time-to-fracture under conditions of both high temperature and stress.