A novel non-destructive space-resolved method for studying binder burnout is presented. Debinding of dry pressed zinc oxide green bodies was analyzed by neutron imaging. Neutrons in contrast to X-rays allow penetrating samples with large dimensions up to 80 mm and at the same time detecting variations in the organics content as small as 0.1 wt%. We used neutron radiography (2D) and tomography (3D) to investigate with a spatial resolution in the order of 100 μm the distribution of binder during burnout under three different conditions. First a reference case with green bodies placed on a plate in a lab furnace. Second, a configuration with a reduced volume of air with green bodies enclosed in a sagger and third a green body placed on an improved supporting structure. The method is extendable to other particulate materials and green bodies shaped by processes involving organic binder such as casting, extrusion and injection.

提出了一种新型的无损空间分解方法，用于研究粘结剂的燃耗。通过中子成像分析干燥压制的氧化锌生坯的脱脂。与X射线相反，中子可以穿透高达80 mm的大尺寸样品，并同时检测有机物含量低至0.1 wt％的变化。我们使用中子射线照相（2D）和断层扫描（3D），以空间分辨率为100μm的顺序研究了在三种不同条件下烧尽过程中粘合剂的分布。首先是一个参考案例，生坯放在实验室炉子的盘子上。第二，具有减少的空气量的构造，其中生坯被包围在匕首中，第三生坯被放置在改进的支撑结构上。