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Aviation History
1943
1943 - 0029.PDF
JANUARY 7TH, 1943 FLIGHT Advertisements. 17 Crystal Analysis A">RYSTAL analysis is the scien- \^j tific approach to the atomic structure of substances. The apparatus employed is an X-ray spectrographic camera which enables photographs of X-ray diffraction by ;rystals of magnesium to be made. The axis of the arm shown in the illustration continues down into the centre of a cylindrical chamber and on it is mounted the crystalline specimen. This is bathed in a monochromatic X-ray beam and a photograph of the diffraction pattern made by the reflected rays is taken on a film which lines the chamber wall. The application of the science of crystallography to the metallurgy of magnesium and its alloys has led to our present knowledge of the struc- ture of the magnesium crystal, the number of phases which exist in the alloys, the orientation of crystals in worked material and the measure- ment of internal stresses. The results of this research are constantly applied in practice to maintain for MAGNUMINIUM magnesium alloys their position in the forefront of the light alloy industry. MAGNUMINIUM MAGNESIUM CASTINGS & PRODUCTS LTD'SLOUGH
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