If it is well admitted that pressur

If it is well admitted that pressure is beneficial for densification via particle sliding andrearrangement, plastic deformation, and pore shrinkage, the high temperatures required by these processes create several technological barriers: (i) advanced materials need to be produced by energy- and cost-efficient processes to ensure the feasibility of industrial scalability, (ii) materials that are metastable or that decompose at low temperature are difficult to sinter with such processes and (iii) co-sintering of multimaterials is hindered by differences in thermal stability, the rate and the onset temperature of shrinkage, and the physical and/or chemical compatibilities between the components [7,8].