The present work investigates the mechanical properties and tribological behavior of Al-B4C composites. Attempts were made to overcome the wetting problem between B4C and liquid aluminium at lower temperatures for promising the mechanical and tribological behaviour of the Al -B4C composites. AA6061-B4C particle reinforced composites were produced through casting route at 850ºC with K2TiF6 added as flux to overcome the wetting problem between B4C and liquid aluminium metal. The Aluminium B4C composite
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296 HANDOUT: CONTINUOUS FLOW (PRODUCT ORIENTED LAYOUT) AND BOTTLENECK ANALYSIS Reference: Operations Management by Mark A. Vonderembse and Gregory P. White. The Product Layout and System Capacity The capacity of a product-oriented system can be visualized as a series of pipes of varying capacity‚ with the smallest diameter or capacity holding back the entire system. Exhibit 9.3 illustrates five pipes (departments or machines) with different diameters (capacities). The output
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which is toxic by all routes of exposure and is also a lung irritant. To avoid harm and ensure safety‚ eye protection and skin protection must be used. Equipment: * Metal tongs * Bunsen Burner * Zinc * Lead * Magnesium * Iron * Tin * Aluminium * Copper * Splint * 50 Ml Hydrochloric acid solution * 8 Test tubes * Measuring Cylinder * Beaker Method: Part A: Reaction of Metals with Oxygen 1. Hold each metal under a Bunsen flame and wait
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studies show that people who eat on an all plant based diet run the same risk of iron deficiency than people who eat meat. "Vitamins A‚C and E intakes were higher in vegetarians than no vegetarians the same with iron intake." Also the iron found in meat is heme iron which is not the kind of iron you want and decreasing your intake on heme iron reduces your risk of metabolic syndrome. Dietary iron found in plants is the iron that you want in your body."(Greger Micheal‚ M.D. June 5 2015 Volume 25). So
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Noah Stewart-Maddox Chem 121 10/12/11 Synthesis of Potassium Ferric Oxalate Trihydrate and The Determination of Oxalate Ion in Ferric Oxalate Trihydrate using Titrimetry Abstract: In this two-part lab‚ we will learn about coordination compounds and their uses with stoiciometry. We will also find out about how theoretical yield is calculated from a reaction we will create. We will also synthesize Potassium Ferric Oxalate Trihydrate (K_3 [〖Fe(C_2 O_4)〗_3]•3H_2 O) using a two step reaction. In
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Chinese invention is the development of iron and steel. The development of iron and steel led to other advances. In the 4th century the Chinese had developed blast furnaces to obtain cast iron from iron ore. The Chinese had access to large amounts of clay; clay was the most important ingredient in making blast furnaces. The Chinese also figured out that by adding a substance they called "Black Earth‚" they could lower the melting point of iron. Today iron and steel are used in many things from clocks
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three of the five most commonly consumed food vehicles as reported by the National Food Consumption Survey. The National Food Consumption Survey reported that for South African children as a whole‚ the average dietary intake of energy‚ calcium‚ iron‚ zinc‚ selenium‚ vitamin A‚ vitamin D‚ vitamin C‚ vitamin E‚ riboflavin‚ niacin‚ and vitamin B6 was less than 67% of the Recommended Dietary Allowances (RDA)‚ and in many cases below 50% of the Recommended Dietary
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when they are in contact with salt water‚ and acid rain. We chose to see what would happen to various metals when they contacted with salt water. When the electrons move around in the salt water‚ it causes the metals to rust. The metals we chose were iron‚ copper‚ lead‚ zinc‚ and aluminum. Those are some of the most commonly used industrial metals. We got the salt water directly from the beach‚ so that we would get the same reaction if this happened in real life. The chemicals that are
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Julia Supangan blk. 2-4 The Reaction of Various Metals with Ionic Salts Purpose: To examine the reaction of various metals with ionic salts Materials: * 4 test tubes * test tube racks * 10mL measuring cylinder * 4 metals (in containers)- Zn‚ Sn‚ Mg‚ Fe * copper (II) sulphate solution Safety: 1. Be careful with copper (II) sulphate solution it is poisonous and corrosive. handle with care 2. Do NOT BREATH in any gases produced 3. If you touch any of the
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CHEMICAL WEATHERING Chemical weathering is a process of alteration of rocks of the Earth’s crust. is a chemical decomposition process. is brought out by atmospheric gases and moisture. End product has a different chemical composition and poorer physical constitution. The process: Chemical change in the nature of rock takes place in the presence of moisture containing many active gases such as CO2‚ N2‚ H2‚ and O2. Rocks are made up of minerals. All the minerals in a rock are not in
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