PrFan Blades Rolls Royce is unique for its patented manufacturing process of its hollow wide-chord titanium fan blades. To make these fan blades light and strong the fan blades are made from titanium 6-4 alloy with a hollow internal “Warren–Girder” structure. This is done using 2 processes namely Superplastic forming and Diffusion bonding. The manufacture process starts with 3 sheets of forged titanium. A material called stop-off is printed onto 2 of the sheets which will stop them from joining
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Material can be made to withstand extreme temperatures limits. * Used for switches and keyboards. Thermochromic Ink * These materials change colour when there is a change in temperature. * Thermochromic ink comes in two forms: Liquid crystals and Leuco dyes. * Leuco dyes are easier to work with and allow for a greater range of applications. * Applications of thermochromic ink include: flat thermometers‚ battery testers‚ clothing. Mr
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LABORATORY REPORT 4 PREPARATION OF ALUM FROM ALUMINUM METAL Huy Nguyen October 2nd‚ 2012 The objective of the laboratory is to synthesize alum (KAl(SO4)2.xH2O) from aluminum powder and to determine the proportion of water in the alum crystals. Alum is a product from the reaction between potassium hydroxide and sulfuric acid. The reaction include several steps‚ as followed: Aluminum powder reacts with potassium hydroxide to generate Al(OH)4- ions and release hydrogen. 2 Al(s) + 2 KOH(aq)
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microstructural behavior (Scanning electron microscopy)‚ Dielectric property (Permittivity analyzer) and crystal lattice vibration (Fourier-Transform Infrared Spectroscopy). In the X-Ray diffraction spectra‚ it is expected to observe the presence of a doublet peak from the reflection of (002) and (200) planes in tetragonal BT and an increase in its diffraction angle due to shorter distance between crystal planes. SEM image of doped BT will show smaller grain size due to substitution of Ca ions
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SMART GREEN HOUSE SYSTEM BY CHUNG SOON ZHI January 2013 Session Introduction Smart Green House System is systems that can control the speed of fan depend on the temperature or the humidity of the surround environments detected. Besides that‚ it also can control the on/off of the curtain depend on the light intensity detected. Furthermore‚ this system also can control the intensity of house lamp with the related sensor. This idea is come from the GO GREEN Concept. As we know‚ our
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Brittany Gecik Dr. Sowa Experimental Foods Lab February 13‚ 2013 Crystallization‚ Sugar‚ and Fudge Lab Report Introduction: Controlled crystal formation is important to acquire a certain texture in crystalline candy. Crystalline candies are smooth‚ creamy‚ and easily chewed with a definite structure of small crystals that resemble tiny snowflakes. Examples of crystalline candies are fondant‚ fudge‚ and penuche. When a concentration of sugar is higher than 121 degrees Celsius‚ it is
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the α- phase‚ and in the β phase the lattice symmetry is hexagonal. As for SiO2‚ the lattice symmetry is trigonal. The lattice symmetry of FePO4 in the α- phase and SiO2 is similar as 2 silicon atoms can replace 1 iron and 1 phosphorus atom in the crystal structure. Looking at this stoichiometric equation‚ Fe3+ + P5+ 2Si4+‚ we can see that there are 2 atoms on both side of the equation and total charge on both sides is equal‚ therefore both SiO2 and FePO4 in the α- phase have a similar lattice symmetry
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material changes color. They are used to determine whether a drug is present at the scene. 4.) Microcrystalline tests involve exposing the substance to a reagent and then examining the color and morphology of the crystals that form. This can provide the shape‚ color‚ size‚ and crystal formations of the specific drug. 5.) Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution. It is
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definite characteristic geometrical shape b. They have a long range order. c. They have a sharp melting point. d. They are anisotropic in nature i.e. their physical properties show different values when measured along different directions in the same crystal. e. When cut with a sharp edged tool‚ they split into two pieces and the newly generated surfaces are plain and smooth. f. They have a definite and characteristic heat of fusion g. They are called true solids 5. Polymorphic forms or polymorphs: The
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Q1. General System Theory General System Theory accounts for similarities in the functioning of diverse phenomena such as living organisms‚ machines‚ galaxy and organizations. All forms‚ from atomic particles through atoms‚ molecules‚ crystals‚ planets‚ solar system‚ and even galaxies may be regarded as ’system’. ’System’ may be referred as ’complexes of elements standing in interaction. (Definition by Bertalanffy). The closed system is system that neither takes in nor emits matter. (only
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