本文讨论如何应用“滴液盖片法”制造胶质代替膜来代替不透明的金属样品使能直接利用生物显微镜观察金属内结构,同时亦可利用金相显微镜观察而得到同一结果。
The“Drop-and-Cover”method developed by us for preparing replicas is carriedout by applying first a few drops of an organic solvent on a prepared surface of a me-tal specimen and then covering with a sheet of dellulose acetate or similar materials.Through the softening action of the solvent on the plastic sheet and the exclusion ofair between the metal surface and sheet,atmospheric pressure will bring intimate contactof the two together,thus producing a“negative”replica.A“positive”replica may bemade from this when required.These replicas can be used directly for metallographicstudies either on a biological or a metallurgical microscope without any furthermodification.
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