The densification mechanism was discussed based on dynamic analysis of the densification process and experimental observations of the structure formation.

The processing technique and densification mechanism of TiAl based alloy sheet manufactured by elemental P/M method are summarized, and the factors influencing densification during reactive synthesis are analyzed.

The experiment has revealed that particle rearrangement is the domain densification mechanism during powder warm pressing and the plastical deformation of powder particle, which offers accommodate deformation for the particle rearrangement and also directly contributes to densification of powder compacts, is another important one.

In order to utilize the electrolytic layer for the solid oxide fuel cells (SOFC) deposited by atmospheric plasma spraying, a densification process with metallic inorganic salt solution to plasma sprayed YSZ electrolytic layer was conducted to aim at improving the gas permeability of the electrolytic layer.

The bonding strength between copper core and silver shell would be increased because of densification process.

The densification process of spray deposited GCr15 alloy were studied by using Gleeble-1500 thermal simulator.

Since the publication of The Peasant Family and Rural Development in the Yangtze Delta, 1350-1988 in 1990s, Philip Huang’s involution theory has been enjoying its broad academic influence all over the world.