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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.
(a) Describe and calculate i) Humidity Ratio ii) DPT iii) Relative Humidity iv) Density v) Enthalpy of atmosphere air when DBT is 35 0 C, WBT is 23 0 C and the ba
EQUIPMENT FOR RESISTANCE WELDING-Measurements Measurement of the parameters are important while fixing the parameters or testing a machine. Resistance welding instrumentation s
what is the working princile of high preesure die casting process
Hinged Support: Hinged (Pin) Support: At hinged end, beam cannot move in any direction support will not develop any resisting moment, but it can develop reaction in any of t
In ME1, you are beginning to develop knowledge of design, materials, and basic machine elements (e.g., power screws, bolted joints, bearings, gears). In addition, you are becoming
A steel pipe with 50 mm OD is covered with a 6.4 mm asbestos insulation followed by a 25 mm layer of fiber-glass insulation [K = 0.0485 Wmk]. The pipe temperature is 393 K and the
Determine the enhance in volume of the vessel: A thin spherical vessel of diameter 800 mm and thickness 6 mm is filled through a liquid at an internal pressure of 1.5 N/mm 2 .
Compute the ratio of the torque: Compute the ratio of the torque transmitted by a hollow & a solid shaft of the similar material, length & weight. Solution d i = inte
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Direct and Bending Stresses: defined neutral axis, introduced the influence of axial force and bending moment on different sections, attained the core or kernel of di
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