what is a rate controlling step ? how is it dependent on reaction path ? explain with an example.

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Where is iron ferite used?

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What are the materials used to manufacture Aeroplane Wings?

0 Answers   NIC,

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The Hardness of wheel(or)grade of wheel refers to the

0 Answers   NIC,

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Define boring.

0 Answers   Essar,

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Upto what negative temperature below zero degree we can use IS 2062 Structural material?

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Define what is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbine blades etc. When both are used in the lost-wax method?

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What happens to the microstructure during service exposure?

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I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

0 Answers   Novellus,

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i need manual solution of diffusion in solid(shewmon) if you have plz send for me. tank you my email : alloymail@gmail.com

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what is the composition of grey cast iron grade 20?

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Why cutting fluid is used in machining?

0 Answers   NIC,

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