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Explain Sommerfeld theory
Sommerfeld theory: The theory was originally proposed in 1900 to define and correlate the electrical and thermal properties of metals. Later, quantum mechanics became the basis for the theory of most of the common properties of simple metals like as sodium, with one free electron per atom, magnesium with two, and aluminum with three. Transition metals, like as iron, have partially filled electronic d states and are not treated by the free-electron model
What is Spheroidsing Spheroidsing is the method that applies more to the hypereutectoid steels (above 0,8% C). The process includes heating the metal to between 600oC and 65
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Polarization of Dielectric If a material having polar molecules, they will usually be in random orientations when no electric field is applied. An applied electric field will p
What is Metallisation Metallisation : metalizing is the procedure of evaporating a film of metal onto products. Normally the same is done in vacuum, therefore called vacuum m
Ionic bonding. An ionic bond (or electrovalent bond) is a type of chemical bond that can often form among metal and non-metal ions (or polyatomic ions like as ammonium) throug
Spelling resistance: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelli
petrolium
the chemical reaction taking place in the kiln?
what is proportion of austenite present at 724 centigrade
Zinc has hcp structure. In a unit cell of zinc, the zinc atoms occupy 74% of volume of unit cell.
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