SiC Membrane Sintering for One-Step Pore and Surface Control

The patent applies preliminary action by incorporating surface modification agents into the green body before sintering. The green body is prepared with agents such as silane coupling agents or surface treatment powders mixed into the ceramic powder, so that surface modification occurs during the sintering process itself rather than requiring separate post-treatment steps. This integrates the surface modification function into the main fabrication process, eliminating additional processing steps while achieving the desired surface properties.

The patent merges the surface modification function with the sintering process. By combining the addition of surface modification agents into the green body preparation step with the subsequent sintering operation, the patent achieves both pore structure formation and surface property modification in a single integrated process flow, rather than requiring separate post-treatment operations.

The patent applies parameter changes by controlling sintering temperature and holding time to regulate pore structure without adding pore formers. By adjusting sintering parameters (temperature profile, duration), the patent achieves precise control over pore size distribution and porosity while maintaining the structural integrity and mechanical strength of the ceramic matrix, avoiding the weakness introduced by pore-forming additives.

The patent extracts the pore structure regulation function from the addition of pore formers and achieves it through control of sintering parameters and green body preparation. The pore structure is controlled by the formulation and molding method of the green body itself, combined with optimized sintering conditions, eliminating the need for separate pore-forming additives that would compromise mechanical strength.

The patent merges multiple functions (pore structure formation, surface property modification, and mechanical strength optimization) into a single sintering process. By incorporating surface modification agents into the green body and controlling sintering parameters, the patent achieves multiple objectives simultaneously in one operation, eliminating the need for multiple separate treatment steps and reducing overall production cost.

The patent applies multi-functionality by designing a single sintering process that simultaneously achieves pore structure regulation, surface property modification, and mechanical strength optimization. The green body formulation and sintering conditions are optimized to perform multiple functions concurrently, making the process universally applicable for producing ceramic membranes with diverse properties without requiring multiple specialized treatment steps.