A PAPER ON “SMART MATERIALS:A NEW TREND IN TECHNOLOGY” PRESENTED BY‚ SAHIL G. GOVINDWAR. govindwar.sahil@gmail.com Contact No: 7709575108. BABASAHEB NAIK COLLEGE OF ENGINEERING‚ CIVIL ENGINEERING DEPARTMENT. PUSAD. . CONTENTS . Sr. No. | Title | Page No. | 1 | Abstract | 1 | 2 | Introduction | 1 | 3 | Classification | 2 | 4 | Advantages and Disadvantages |
Premium Metallurgy Materials science Crystal
Effects of curing condition of solution cast Nafion® membranes on PEMFC performance Korean J. Chem. Eng.26(3)‚ 679-684 (2009) Thickness of membrane ~ 50µm There are some disadvantages of the solution casting method that the cold cast films are generally mechanically weak‚ susceptible to crack formation and soluble in many polar solvents‚ especially in water at room temperature. Generally‚ the annealed films undergo morphological changes when heated above the glass transition temperature (Tg=109oC
Premium Solubility Solvent Crystal
Marriott Corporation Evaluating the cost of capital 1. What is the weighted average cost of capital for Marriott Corporation? 1 (a) What risk-free rate and risk premium did you use to calculate the cost of equity? R (f)‚ or risk free rate used for calculating cost of equity was the Geometric Mean (GM) for LT US govt. bond returns (Exhibit 4). We used the overall GM of 1926-1987 of 4.27%. This is because this is the period that Marriott has been in operation and would be a good reflection
Premium Weighted average cost of capital Finance Interest
and give their Miller indices. You should specify a positive sense on your direction with help of an arrow and make your Miller indices consistent with that direction. 12 3 First three peaks in a powder x-ray diffraction pattern from a cubic crystal appears at Bragg angle =13.63‚ 22.63 and 26.82 when CuK radiation with a wavelength of 1.54 Å is used. Determine the structure and lattice parameter of the material. 12 4 Iron changes from a low temperature BCC phase to a high temperature
Premium Crystallography Crystal Crystal system
MATSE 259 Solutions to homework #2 1. For the HCP crystal structure‚ show that the ideal c/a ratio is 1.633. We are asked to show that the ideal c/a ratio for HCP is 1.633. A sketch of one third of an HCP unit cell is shown below. a c M L J K a Consider the tetrahedron labeled as JKLM‚ which is reconstructed as M L H J K The atom at point M is midway between the top and bottom faces of the unit cell __ that is MH = c/2. And‚ since atoms at points J‚ K‚ and
Premium Crystal Volume Length
K-feldspars will seperate from the albite in a process called exsolution. The albite will form layers inside the k-feldspars crystals. Some times these layers are discernable to the naked eye and the stone is referred to as perthite. Albite by definition must contain no less than 90% sodium and no more than 10% of either potassium and/or calcium in the cation position in the crystal structure.. Albite is the last of the feldspars to crystallize from molten rock. The process of crystallization from
Premium Feldspar Crystal Mineral
the message is more then what the words say. The idea of modularity gave rise to the letterpress technology and also influenced the shape of graphic design‚ establishing principles that were crucial to later industrialization. Beatrice Warde’s Crystal Goblet‚ through extraneous metaphors‚ proposes the idea the good typography is typography that is invisible‚ in that the type should adhere to the readers expectation so as not disrupt their immersion in the content. The basis of this idea is that
Premium Mind Fiction Literature
Crystal jellyfish The Crystal jelly fish is a very unique marine animal. Known as the crystal jellyfish its scientific name is well known to be the Aquarium Victoria. The Aquaria Victoria is a saucer shaped Hydromedusa with a well developed velum‚ its size ranges within five to twelve centimeters in diameter. It has eighty or more narrow unbranched radial canals witch can extend to the margin of the bell. All tentacles extend from the margin of the bell‚ making the slender gonads run along most
Premium Jellyfish
scientists like Dr Sivaramakrishna Chandrashekhar and Dr Subramaniam Chandrashekhar won laurels and recognition abroad and not in India. A typical example of bureaucratic interference in India is regarding the technology of growing ultra pure silicon crystals to make solar and other silicon cells that convert light into electricity. Two Indian Institute of Science scientists had developed the technology. In the early 80s‚ Mettur Chemicals (MetChem) in Mettur near Salem tried to install a pilot plant to
Premium Liquid crystal Indira Gandhi Silicon
pattern. • Such as glass‚ plastic‚ gel Question 1. X rays from a copper X-ray tube (λ = 154) were diffracted at an angle of 14.22 degrees by a crystal of silicon. Assuming firstorder diffraction (n= 1 in the Bragg equation)‚ What is the interlunar spacing of silicon? nλ = 2d sin θ 1(154) = 2d sin 14.22 154 = 2d (0.245) 2d = 626.92 d = 313.46 2. A topaz crystal has an interplanar spacing (d) of 1.36 Å (1 Å = ). Calculate the wavelength of the X ray that should be used if θ = 15.0° (assume n = 1) nλ
Premium Crystal Solid Glass