Achieving optimal results in porcelain sculpture production relies heavily on precise firing schedules. The most common techniques include bisque firing and glaze firing, each serving a distinct purpose in the ceramic process.

Bisque Firing:

This initial firing stage removes physical and chemical water from the clay, hardening it into a porous state ideal for glazing. Typically, bisque firing occurs between 1650°F (900°C) and 1940°F (1060°C) at a slow rate to prevent cracking.

Glaze Firing:

The second firing melts the glaze onto the bisque-fired piece, creating a glassy surface. Depending on the glaze type, temperatures range from 1830°F (1000°C) for low-fire glazes to 2370°F (1300°C) for high-fire porcelain. A controlled cooling phase is critical to avoid thermal shock.

Alternative Schedules:

Some artists use single firing (combining bisque and glaze stages) or reduction firing (limiting oxygen) for unique effects. However, these methods require advanced kiln control.

By mastering these schedules, artists ensure durability, vibrancy, and consistency in porcelain sculptures.