Radiation Enhanced Sintering of Ceramics

该项目涉及陶瓷的辐射增强烧结。 的 方法是中子辐照陶瓷粉末，以增加 缺陷浓度，这反过来又会导致辐射增强 扩散（RED）。 实验将在接收时进行， 辐照AlN和Al2O3以测量辐射增强烧结（RES） 从收缩率和微观结构观察，并研究 使用放射性示踪剂切片的RED的潜在基本现象 法 将对结果进行分析，以确定参数 对RED和RES更重要。 烧结是陶瓷材料加工的关键步骤。 陶瓷的强度和韧性取决于此。 校长 研究人员提出了一种新的方法，改善烧结纯 共价陶瓷（例如，氮化物和碳化物）。

This project deals with radiation enhanced sintering of ceramics. The approach is to neutron irradiate the ceramic powders to increase the defect concentration which in turn would lead to radiation enhanced diffusion (RED). Experiments will be conducted on the as received and irradiated AlN and Al2O3 to measure radiation enhanced sintering (RES) from shrinkage rates and microstructural observations, and to study the underlying basic phenomenon of RED using the radiotracer sectioning technique. The results will be analyzed to identify the parameters more critical to RED and RES. Sintering is the critical step in the processing of ceramic materials. The strength and toughness of ceramics depend on this. The Principal Investigator proposes a novel method of improving the sintering of pure covalent ceramics (e.g., nitrides and carbides).