EFFECT OF TEMPERATURE ON CORROSION OF CERMETS ALLOY ABSTRACT Tungsten carbides (WC) are widely used as wear resistant components such as seal‚ valves‚ rings‚ nozzle and bearings. But in some processing operations‚ the environment necessarily includes severe corrosion or extremes of temperatures. In this research‚ commercially cobalt tungsten carbide (WC-6%Co) and nickel tungsten carbide (WC-9%Ni) was examined in seawater (3.5% salinity) to know the effect of temperature on corrosion for both
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Water as a Universal Solvent * Because of its high polarity‚ water is able to dissolve most substances. * In a solution‚ the positive hydrogen side of water is attracted to the negative parts if the compound it is dissolving while the negative oxygen is attracted to the positive parts * “Like dissolves like” – describes whether one substance will dissolve in another. Water for example can’t dissolve nonpolar substances Concentrations on Solutions * Solvent: The liquid in which
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250 cm3 Beaker6). Measuring Cylinder7). Thermometer (-10 to 110 oC)Hypothesis:By adding glucose to a solution of KMnO4 and H2SO4‚ the solution will turn colourless and it will take a specific time for the reaction to complete. By increasing the temperature‚ the time it takes (the rate) for the solution to completely change to colourless will be increased. Thus it can be said‚ that it is being hypothesized that an increase in temperature will cause an equal increase in the rate of the reaction. Method:1)
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substances across a semipermeable membrane to gain a better understanding of how cells move materials across cell membranes. The experiment was designed to exhibit Brownian Motion; the random movement and tendency of particles of a substance to move from an area of greater concentration to lower concentration via diffusion until equilibrium has been attained. In addition to observing the passive process of diffusion‚ the experiment demonstrated how a semipermeable membrane will only allow certain substances
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MT2 Eis 28 Nov 14 Integrity‚ what does it mean to me? How does it apply to the world around me? How does it affect the lives of everyone if integrity is not held to a certain standard? Why is integrity important? Those are some of the questions I am going to answer. The word Integrity has many different meanings and it cannot just be summed up into just one person’s definition. And I will capture my definition of integrity and what it means to me. By definition the word Integrity is the quality of
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investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity‚ between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis‚ the diffusion of water. Osmosis is the movement of water molecules (H20) from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as
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Cell Phones Are Here To Stay Today cell phones have become like an accessory that accents our wardrobes. Cell phones are used for far more than just phone calls anymore. Some may even argue that they have become a distraction‚ a nuisance‚ or annoying even. At the end of the day‚ most of the people that would make this claim prove to be hypocrites and own a personal cell phone their own. Almost anything needed is virtually at fingertips. This one device has brought communication to your fingertips
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My Journey Through the Human Body My name is Ruby; I am a red blood cell. I am a dazzling ruby red color (hence my name) with a small area of inner pallor and I am very small: only about 6 µm in diameter. I get my red color from a protein chemical called hemoglobin‚ which is bright red. Hemoglobin not only gives me my beautiful color‚ it also contains the element iron‚ which makes it a good vehicle for transporting oxygen and carbon dioxide. I have a very important role in the circulatory system
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Biology Lab #5: Cell Respiration | | | | | | Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Introduction To be able to carry on metabolic processes in the cell‚ cells need energy. The cells can obtain their energy in different ways but the most efficient way of harvesting stored food in the cell is through cellular
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Integrity A goal that everyone hopes to reach‚ a quality that many falsely claim to have‚ and a way of life that is seemingly difficult to live by. I’m not even sure people really know what the word means‚ yet I personally hear it used all too often. It is to have a firm adherence to a code of especially moral or artistic values. It is to be unimpaired in everything. Some would say to have this they must be perfect. It is something that is almost unattainable yet talked about and used so carelessly
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