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金属学报  1983, Vol. 19 Issue (2): 79-158    
  论文 本期目录 | 过刊浏览 |
硫化物相光学常数的测定
吴维(山文);I.Aydin;H.E.Bühler
中国科学院金属研究所;西德化工协会DECHEMA研究所;西德化工协会DECHEMA研究所
THE OPTICAL CONSTANTS OF SULPHIDES
WU Weitao (Institute of Metal Research; Academia Sinica; Shenyang); Irfan AYDIN; Hans-Eugen BUHLER (Dechema-Institut; Frankfurt/M.)
引用本文:

吴维(山文);I.Aydin;H.E.Bühler. 硫化物相光学常数的测定[J]. 金属学报, 1983, 19(2): 79-158.
, , . THE OPTICAL CONSTANTS OF SULPHIDES[J]. Acta Metall Sin, 1983, 19(2): 79-158.

全文: PDF(5523 KB)  
摘要: 首次用干涉涂层金相显微镜测定一些硫化物相的光学常数并将之用于定量金相术。 测定了各相的折射系数和吸收系数,还指出使金相组织呈现尽可能高的黑白衬度和满意的色衬度的条件。报道了能使多种硫化物相的光反射率近乎消失的涂层材料和按德国工业标准DIN6164标定各相颜色的结果。 当采用不吸收光的涂层时,对每一个相而言,其干涉极小的光反射率与涂层的折射系数之间有简单的数学关系,据此提出一个新方法,以准确地判断满足各种相、包括硫化物相的振幅条件的涂层折射系数值。 硫化物是一组颇复杂的相,常用的涂层材料ZnS或ZnSe可能欠或过满足它们的振幅条件,为此提供必要的数据也是本文的目的之一。
Abstract:For the first time the optical constants of different sulphides were measuredusing interference layer microscopy to enable them to be utilized for quantitativemetallography. In addition to the measurement of the refractive index and absorp-tion coefficient it was also possible to give the conditions that enable the maximumpossible light-dark contrast as well as a good colour contrast to be achieved in thepolished specimen. The layer materials that almost completely extinguish thereflectivity of the different phases are reported together with the exact colouraccording to DIN 6164. A method of presentation was found for all phases, notonly the sulphides, that enabled the refractive index at which the amplitudecondition was fulfilled to be exactly determined. There is a mathematical relation-ship that can be simply derived for all phases between the reflectivity at theinterference minimum of a phase and the refractive index of the layer providingnon-absorbent layer materials are used.The sulphides represent a very complicated phase group for the metallographer as the amplitude condition can be over- or under- fulfilled by coating with the layer materials under discussion e.g. ZnS or ZnSe. One of the aims of this work was to provide the necessary data.
收稿日期: 1983-02-18     
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