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Research about Obtaining Porous Sintered Multilayer Materials from Stainless Steel Powders

机译:由不锈钢粉末获得多孔烧结多层材料的研究

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Porous samples under the form of disc tablets, 23 mm in diameter and approximately 2 mm thick, were made by freely spreading and then sintering stainless steel powder (316 L). The powder fraction used and the sintering time are the parameters that were varied in order to study their influence on the main structural characteristics. Different powder size ranges were used. The multilayer structure was obtained by freely spreading different particles size ranges -40μm and 100 -125μm in alternative layers. The narrow range (-40μm) of particles was used to obtain a thin layer (0,5mm) intended for small pores size and to maintain the permeability of samples in acceptable limits. The sintered structure was investigated by electron microscopy and mercury porosimetry.
机译:通过自由散布然后烧结不锈钢粉末(316 L),制成直径23毫米,厚约2毫米的圆盘片剂形式的多孔样品。为了研究它们对主要结构特征的影响,使用了不同的粉末分数和烧结时间。使用了不同的粉末尺寸范围。通过在替代层中自由散布-40μm和100-125μm的不同粒径范围来获得多层结构。窄范围(-40μm)的颗粒用于获得旨在用于小孔尺寸的薄层(0.5mm),并将样品的渗透性维持在可接受的范围内。通过电子显微镜和水银孔率法研究了烧结结构。

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