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Nitrides, Silicides and Sulfides
Nitrides contain very high melting point but initiate to oxidize at low temperature. They have poor resistance also to chemicals. Boron nitride have a graphite structure and thus exhibit lubricating properties. A type of boron carbide identified as Borazon produced via compressing beneath high pressure of 68000 atmospheres at a temperature above 1700oC has hardness equivalent to such of diamond. Borazon also has a excellent resistance to oxidation and can withstand a temperature of 1950oC.
An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg. Calculate the pressure at the bottom of the test tube if the atm
Equation for principal stresses and principal planes: Derive equation for principal stresses and principal planes for the element subjected to compound stresses. Sol.:
Find out bulk modulus: A steel bar of 25 mm diameter was tested on a gauge length of 250 cm in tension and in torsion. A tensile load of 50 kN generated an extension of 0.13 m
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what is principle of gyroscope
full explaination
Q. Process of Steam generation unit? BFW from water treatment area is sent to the BFW Booster pumps at temperature around 105°C. The BFW is then heated and fed to the HP BFW Pu
A simply supported beam ABC with supports at A and B , 6m apart and with an overhang BC 2 metres long takes uniformly distributed load of 1.5 KN/metre length over the entair length
(a) Reduce expression for the net pressure and depth of centre of pressure in case of an inclined plan surface submerged in a fluid. (b) Derive Euler's equation of motion along
Q. Patching touch up stick? Pipe requiring limited coating repair resulting from scars, slivers, holidays, etc. shall be repaired by an OWNER approved patching system. The amou
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