Information for Contributors to Journal of Materials Research

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must accompany each illustration. Captions must be typed double-spaced on a sheet of paper at the end of the manuscript. Drawings should be planned with oversize lettering and widespaced coordinates to be reproduced satisfactorily within single-column width (85 mm, or 3 % in.). Principal letters on figures are reduced to approximately 1.5 mm or 1/16 in. or, if a Leroy lettering device is used, to #060, regardless of the overall size of the drawing. For best results, draftsmen should be given a recent copy of this or any other journal published by the American Institute of Physics to familiarize themselves with the proportions to be followed. Line drawings are preferable to photographs and must be made with India ink on plain white paper or tracing cloth. Coordinate paper is not acceptable. Illustrations must be held, with rarestexceptions, to 8'/2X 11 in. High-qualityglossy prints with sharp even lines and lettering may be submitted in place of original drawings when these are of exaggerated size and awkward to handle. Photographs of standard apparatus in a laboratory setup are not instructive and should not be included. No heavy writing should be made on the backs of photographs nor should they be clipped or stapled so as to mar the picture. The figure number and the author's name should appear on the back of each illustration. All photographs, including micrographs, should be good quality, continuous tone black-and-white prints. Micrographs should contain a fiducial mark which indicates explicitly the scale length being shown. Specification of the reduction ratio in the caption is not adequate. Any arrows or lettering in the micrograph must satisy the same scaling restrictions as those indicated above for line drawings. Unless otherwise indicated, all photographs will be reduced to single-column width. Any special instructions regarding the scaling or placement of photographs should be written on the back of all the photographs involved. Authors must assume responsibility for the quality of computer-generated graphs or charts. It is necessary to exercise control over the computer-driven printer so that the lines of a graph are dark enough for reproduction. If the labeling on a computer-generated plot is of poor quality, professionally hand lettered charactersshould be superimposed on the plot. Computergenerated plots made up of small horizontal and vertical line segments may be rejected if the segments are not short enough. 8. Mathematics. Mathematical expressions should be type written as completely as possible, with unavailable symbols being carefully inserted in ink. Special care should be given to make equations and formulas clear to the typesetter, and each letter or symbol inserted in the manuscript in handwriting should be identified in the margin the first time it occurs in the text. Capital and lower-case letters should be distinguished clearly where there could be confusion. Fractional exponents should be used to avoid root signs. Extra symbols should be introduced to avoid complicated exponents or wher