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Transient liquid phase diffusion bonding (TLPDB) is a joining process that has been applied for bonding many metallic and ceramic systems which cannot be bonded by conventional fusion welding techniques. The bonding process produces joints with a uniform composition profile, tolerant of surface oxides and geometrical defects.
A molecularly imprinted polymer (MIP) is a polymer that has been processed using the molecular imprinting technique which leaves cavities in the polymer matrix with an affinity for a chosen "template" molecule. The process usually involves initiating the polymerization of monomers in the presence of a template molecule that is extracted ...
Liquid phase sintering is a sintering technique that uses a liquid phase to accelerate the interparticle bonding of the solid phase. In addition to rapid initial particle rearrangement due to capillary forces, mass transport through liquid is generally orders of magnitude faster than through solid, enhancing the diffusional mechanisms that drive densification. [1]
Direct bonding, or fusion bonding, is a wafer bonding process without any additional intermediate layers. It is based on chemical bonds between two surfaces of any material possible meeting numerous requirements. [1] These requirements are specified for the wafer surface as sufficiently clean, flat and smooth.
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The diffusion bonding method can be used widely, joining either similar or dissimilar materials, and is also important in processing composite materials. The process is not extremely hard to approach and the cost to perform the diffusion bonding is not high. [14] The material under diffusion is able to reduce the plastic deformation.
The bonding temperature can be lowered using a higher applied pressure and vice versa, considering that high pressure increases the chances of damage to the structural material or the films. [8] The bonding process itself takes place in a vacuum or forming gas environment, e.g. N 2. [10]
Host–guest chemistry encompasses the idea of molecular recognition and interactions through non-covalent bonding. Non-covalent bonding is critical in maintaining the 3D structure of large molecules, such as proteins and is involved in many biological processes in which large molecules bind specifically but transiently to one another.
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