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Materials Engineering: Flow control: A novel use for porous metal
. During orbits they handle orbit trim maneuvers, control spin, and maintain three-axis stability of the probe. A static-flow-control device feeds the mission-critical thrusters a discrete volume of compressed monopropellant hydrazine at a precise flow rate and time. This so-called flow restrictor is made
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Kori Nuclear Power Plant Uses Liqui-Cel(R) Membrane Contactors for Liquid Degassing (.pdf)
of C14 and Replacing. Hydrazine Injection. Liqui-Cel Membrane. Kori unit 1 is a Pressure Water Reactor (PWR). The reactor is. Contactor for Degassing. continuously fed boronated water which is used to control the neutron. flux inside the reactor. The boron is continuously consumed and is. replenished
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Wolsung Nuclear Power Plant Uses Liqui-Cel(R) Membrane Contactors for Dissolved Oxygen Removal to Prevent Corrosion (.pdf)
technologies in an effort to. overcome some of the limitations of using hydrazine. Hydrazine reacts with dissolved oxygen to form water and. nitrogen. Unreacted hydrazine decomposes to produce ammonia,. nitrogen, and at high temperatures, hydrogen. The formation of. hydrogen gas is a potential hazard
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DuPontTM Krytox(R) Lubricants Chemical Stability (.pdf)
, Krytox lubricants do not mix well with most chemicals and other hydrocarbon-based lubricants and will separate out. Krytox oils and greases are completely insoluble in water. Microsoft Word - K-20564 Chem reactivity profile V7.doc DuPontTM Krytox® Lubricants. Chemical Stability. DuPontTM
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Power: Dissolved Oxygen and ORP Measurements
) is needed when there are copper alloys in the feed-. Research Institute and two key measurements used to. water train. It uses deaeration and a reducing agent. monitor them: dissolved oxygen (DO) and oxidation reduc-. (hydrazine or other reducing amine) to lower DO content to. tion or redox
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DOWEXTM MONOSPHERETM Ion Exchange Resins (.pdf)
The Dominion Engineering Millstone Nuclear Power Station has undergone a significant performance improvement in water quality and operational efficiency of the deep-bed condensate polishers in Unit 2. The use of DOWEXTM MONOSPHERETM 650C and 550A gel resins (now in service for more than 6 years
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Chemical Reactivity with Brush Materials
). Acetyl Nitrile. Acetyl Salicylic acid. Acetylene. Acid Chloride 104 F. Acid Fluoborate Bath R.T. Acid Fluoborate Bath R.T. Acid fumes. Acid Sulfate Bath 150 F. Acrylic Acid. Acrylic Acid. Acrylonitrile. Adipic Acid. Adipic Acid; sat. in water. Alcohol, Allyl. Alcohol, Amyl. Alcohol, Benzyl. Alcohol
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Polyurethane Material Properties
urethanes can also be affected by bacteria. and fungi. On the flip side you have polyether-based materials. Inside of the polyether family, you have two. distinct groups, which will be discussed next. As a family of materials, polyether-based urethanes are not. as effected by water as polyesters