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Optical Microscopy

Optical Microscopy¬† Microscopy studies the enlargement of the image of the objects which are too small to be properly seen by the unaided eye. Microscopy fulfills its task by making use of the radiations (Fig 1) emitted, absorbed, transmitted, or reflected by the sample which is to be observed. The nature of the radiation specifies …

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Hadfield Manganese Steel

Hadfield Manganese Steel Hadfield steel also known as Hadfield steel or Hadfield austenitic manganese steel was invented by Sir Robert Hadfield in 1882. The first British patent for this steel, number 200 was granted for this steel in 1883. The first US patents, numbers 303150 and 303151, were granted in 1884. Fig 1 shows the …

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