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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.
Explain Gauge Pressure (P gauge ) Gauge Pressure is the pressure of a fluid contained in a closed vessel. It is all time more than atmospheric pressure. It is calculated by an
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Tessellated Modellers Solid Modeling This describes a class of simplified boundary-representation modellers which approximate to curved faces by a number of plane faces. Sin
Q. Leak Repair Torquing Procedure? Attempt to tighten only the bolts contained within an arc that includes the leak area plus one or two bolts either side of the leak to the or
Classification Two categories of plastics are identified. Those are: thermosetting plastics and thermoplastics. Plastics generally cannot stand higher temperatures. They becom
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Evaluate mechanical work in different steady flow process: Work done by steady flow process and work done in non flow process, 1. Constant Volume Process; W 1-2 = V
what is crippling load in column and strut
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Second Gear Position: When gear M2 on the main shaft is in mesh with gear C2 on the countershaft then this is known as second gear position. To rotate free gear M2 with the m
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