2023 Volume 70 Issue 2 Pages 89-99
The establishment of a carbon-neutral society has reached a stage when it is economically and industrially realistic. Based on this background, research on "non-firing ceramics" has attracted attention from the perspective of environmentally friendly manufacturing, such as energy conservation, low cost, and reduction of greenhouse gas emissions, because high temperatures and high pressures are not required. This technology involves a method to grind the surface of a ceramic raw material powder to obtain a chemical activity and solidify it. This paper provides an overview of non-firing ceramics, the mechanism of the surface activation of ceramic raw materials, and its application to porous materials. Although this method is not a substitute for all sintered ceramics, I hope that it will contribute to providing a new direction of manufacturing.
