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What is the shape factor for a cylinder in terms of powdered materials used in the sintering process?
The general form for the shape factor of any shape is:
Ks = (DeA) / V
where
Ks : Shape Factor
De : Equivalent Diameter of a sphere with a volume equal to the volume of the non-spherical particle
A : Area of the shape
V : Volume of the shape
By setting the equation for the volume of a sphere and the volume of the shape in question (in this case a cylinder) we can find De.
De = ((3/4) r2 h)(1/3)
De : Equivalent Diameter
D : Diameter of the cylinder
h : height of cylinder
Substituting the formula for the area and volume of a cylinder and the De into the general form will give us the shape factor for a cylinder.
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What is the bonding process for powdered metals?
The process is called sintering and is based on atoms diffusion.
Sintering of carbides?
Tungsten carbides are generally called as carbides. Cobalt with Tungsten carbide acts as a binder. When Cobalt added with other elements like Ni / Cr / Mo / Ti are called as cemented carbides. Sintering is a thermal treatment given to these carbides so as to eleminate the porosities and densify them. During this treatment cobalt binds the WC particles and we get high density.
What is the difference between sintering and annealing?
Sintering is a process of compacting and forming a solid mass of material using heat without reaching its melting point, while annealing is a heat treatment process that involves heating a material to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility. Sintering is used to form objects, while annealing is used to improve a material's properties.
What is meant by selective laser sintering?
Selective laser sintering is the process of using an additive in a manufacturing technique that uses an ultra high powered laser and is used for prototype models and functional components.
What has the author Udom Techakijkajorn written?
Udom Techakijkajorn has written: 'Sintering of fume deposits in kraft recovery boilers' -- subject(s): Fume control, Sintering, Sulphate pulping process, Paper industry
What is sinter?
Sintering is a process used when manufacturing ceramic or steel objects. The method of sintering is when objects are made from small particles being heated in a furnace below their solid state, which cause the particles to weld to each other.
What is the difference between calcination temperature and sintering temp?
calcination - basically is a single step heating process where it determines either further heat treatment (sintering) is necessary or not. For example, let say BaTiO3. the reaction between BaO and TiO3 definitely will produced BaTiO3 without having intermediate phase. Although, secondary phase might presence, however, it may decrease with increasing calcination temperature. By the way, if the intermediate phase is a must for next reaction, then calcination has to be followed by sintering process (to provoke further reaction). Sintering is well-known in whiteware as to produce solid body by particle diffusion. However, regards to the calcination process which is formation of intermediate reaction need to be undergo sintering process to ensure all those reaction occur in calcination process are completely reacted to form another a very stable phase.
What is the furnace method?
The furnace method refers to a process where materials are heated in a furnace to high temperatures for purposes like melting, sintering, or calcining. This method is commonly used in industries such as metalworking, ceramics, and glass manufacturing.
What is the process when powdered limestone reacts with the acid in the lake?
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Is graphite a ceramic material?
No, graphite is not a ceramic material. Graphite is a form of carbon with a layered structure, while ceramics are non-metallic materials made through the process of firing, sintering, or other methods.
What is pressure sintering in ice?
When pressure is applied to 2 ice cubes in contact with each other, bonds form between the particles in contact at the molecular level by the motion of individual atoms via either solid state or liquid state events. This results in the ice cubes "sticking" together when left undisturbed in the freezer.
What is binder burnout and sintering?
In ceramic processing, polymers are often added to ceramic particles to allow for higher densities and sufficient green strength. The green body, or pre-fired ceramic, must have sufficient strength to hold its shape after being pressed. Binder burnout is a processing step performed before sintering, where the green body is heated until the polymer binder is burned out of the ceramic. Sintering is the process by which ceramics are densified. Sintering is done because ceramics have very high melting temperatures and reactive melts. In sintering, the green ceramic is heated to a high temperature, below the melting point of the ceramic, where high rates of diffusion are possible. The ceramic particles are joined into a solid monolith through diffusional movement of atoms.
