US Patent 8974717 Method for producing ceramic stereolithography parts

In addition to working curves, other equally important, but previously not understood, relationships exist for both the green strength and the cured line width of ceramic-loaded resins. These characteristics of cured parts are strongly affected by the dose rate, a parameter usually controlled with laser power. Multiple smaller doses are used to produce a total integrated dose. Multiple exposures benefit from using high power to produce a fast process. However, since the dose for a given layer is broken into several smaller doses, the negative effect of high power on strength and cured linewidth is reduced.