increase their hardness. Currently‚ there are 2 processes of applying this coating‚ i.e. Dip coating and Spin coating. The current scratch resistant (Hard) coating on plastic and polycarbonate lenses available in the industry has a scratch resistant property of 4H as per Pencil hardness test. Titan Lens lab has tried improving the hardness of the coating in the past but was able to achieve greater hardness up to 6H‚ but as soon as we apply Antireflection coating on this surface‚ the hardness again drops
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JOMINY TEST Design & Manufacturing Plan of a Jominy Testing Device Bachelor ’s thesis Mechanical Engineering & Production technology Riihimäki 2012 James Alison Orivri ABSTRACT Unit Name of degree programme Option Author Jominy Test James Alison Orivri Year 2012 Design & Manufacturing Plan of a Jominy Testing Device ABSTRACT The purpose of this work is to make one of the many heat treatments devices- Jominy end quenching testing machine of manufacturing processes. In the process
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MATERIALS DEPARTMENT OF CIVIL ENGINEERING Strength Of Materials Department of Civil Engineering STRENGTH OF MATERIALS List of Practical 1) To Study The Universal Testing Machine (U.T.M.) 2) To determine Tensile test on a metal. 3) To determine Hardness of Mild Steel. 4) Torsion test on mild steel rod. 5) To determine Impact strength of steel. (By Izod test ) 6) To determine Impact strength of steel.( By Charpy test) 7) To determined Young’s Modulus of Elasticity of different materials of
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Metalografi is the discipline to learn all types of microstructures of metals and its alloys and the nonmetals. Nonmetals that are included are polymers‚ composites and ceramics. In metalografi‚ the range of structures that can be observed. From large to very small. We can use our eyes for observing the rust‚ cracks and holes. In addition we can also identify any atoms and dislocations by using electron microscopy and x-ray analysis with the right techniques and accurate. Grain size and shape‚ porosity
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Complexometric Determination of Water Hardness by EDTA Titration Bonnie Abella Dr. Asmita Kane Budruk 2/09/2014 Abstract: the complexometric EDTA titration was used to determine the salt substance in the water. This technique for the unknown sample 154 produced a water hardness of 8.43 x105=mg/L CaCO3 from the collected data which corresponds to the typical value from the city of Tempe. Introduction When the water from the rain collects impurities by dissolving the
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Complexometric Determination Of Water Hardness By Angelica Aquino CHM 152 LL January 5‚ 2013 METHODS: 1. Prepare an approximate 0.004 M disodium EDTA solution. To prepare this solution‚ weigh about 0.7-0.8 g of Na2EDTA and dissolve in 500 mL deionized water in your plastic bottle. Make to to shake the bottle to dissolve the salt. 2. Obtain a 250-mL Erlenmeyer flask and transfer a 10 mL of CaCO3 using a buret into the flask. 3. Measure 30 mL of deionized water and add it into
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Hardness of Water by EDTA Titration Introduction Water hardness is caused by natural minerals that are dissolved into the water‚ predominantly calcium and magnesium‚ and is measured as the equivalent concentration of calcium carbonate (in milligrams per litre). Water hardness is usually noticed because of difficulty in lathering soap and the formation of a scum in the bathtub. Ca2+ and Mg2+ form insoluble salts with soaps causing precipitation of the soap scum. Another effect of hard water
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The Importance of Setting Goals Setting goals is the most important thing you can do in your life. Without goal’s you are going to have no direction‚ no ambition to be successful‚ no drive to stay in school‚ and trouble finding a career that will provide for you. Without these three things‚ achieving your goals is going to be one of the toughest tasks in the years to come. When setting direction to success you must make good choices on the path you are going to choose. The wrong path will put
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Why I Decided to Return to School By Samantha Handley Ashford University ENG121 ~ Professor Hale Week 2 Assignment 2 ~ Narrative Essay Why I Decided to Return to School I have many reasons for returning to school‚ to prove the nay sayers in my life wrong‚ running my own domestic violence safe haven‚ earning my Bachelors or law degrees or most importantly‚ showing my daughter that no matter what your circumstances it’s never too late or too
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ate Amanda Moore Period 1 We Should Not Give Participation Awards I want to start this off with a little hypothetical story. There are two kids‚ one who trained his hardest; working out everyday‚ physically‚ and even mentally for a big soccer game. The other‚ did nothing of the sort to prepare himself for the match. The boy’s team who trained really hard won‚ and was awarded a medal for first place; along with a sense of pride that he trained hard and deserved what
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