Porous TiC/Ni composites were prepared by combustion synthesis under high gravity. In TiC/Ni composites, hollow spheres of 50–200 μm were produced, and their walls were composed of large TiC grains and small Ni particles. A larger average size of the spheres was observed in the samples prepared under high gravity compared with those obtained under normal gravity. Phase segregation was observed under high gravity, and Ni was enriched in the lower part of the samples. It is proposed that the mobility and collision frequency of liquid droplets will increase, and thus, the agglomeration of primary droplets can be enhanced under high gravity.
