在离子减薄制备的电镜样品中，孔的边缘往往有一些无颗粒区。
Some small grain free regions (GFR) near the hole in the transmission electron microscopic specimen of this material prepared by ion milling was observed.
钴熔化并粘结碳化钨颗粒从而形成密集的、无孔的结构。形成密集的、无孔的结构。
The cobalt melts and binds the tungsten carbide grains into a dense, nonporous structure.
采用普通干燥法制备得到的复合氧化物具有较低的孔体积和比表面积，颗粒间团聚较严重，但无“孤岛”状大颗粒，晶相为无定型结构。
But the CeO2-TiO2 mixed oxides prepared by conventional drying method show lower pore volume and surface area with serious aggregation, and amorphous phase compared to the corresponding aerogels.
应用推荐