公开(公告)号：US20230059151A1

公开(公告)日：2023-02-23

申请号：US17790086

申请日：2021-01-21

申请人： THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK

发明人： Lance SNEAD ,  David SPROUSTER ,  Jason TRELEWICZ

IPC分类号： G21C3/64 ,  G21C21/02

摘要： Composite structures are provided whose composite matrix is a fully-dense (greater than 95%) magnesium oxide-containing phase and whose entrained phase, by virtue of its' decomposition temperature or chemical reactivity, would otherwise not be fabricable. Notably, a methodology is provided whereby a range of composite structures are formed by applying an advanced manufacturing technique and a blend of ceramic powder whose sintering is enhanced by small amounts of a metal halide sintering aid. This methodology and process significantly lowers the processing temperature of refractory ceramics such as magnesium oxide allowing formation of ceramic bodies incorporating phases such as metal hydrides, fragile ceramic phases, and highly reactive species such as beryllides. In all cases, the final product is substantially-free, or even devoid, of the metal halide sintering aid, resulting in a phase-pure ceramic matrix composed of the host phase and the entrained phase.