High pressure (HP) is an integral part of various domains of science. The combination of temperature with pressure results in applications in several already existing fields, such as steam sterilization by autoclave in medicine, single crystal of a-quartz SiO2 by hydrothermal crystal growth in inorganic chemistry, polymerization by reactor in organic chemistry, Pascalization of biologic materials by high hydrostatic vessel in organic chemistry or pharmacy. In inorganic materials chemistry, pressure allows, in addition to temperature, to sinter/consolidate/densify for obtaining solid material in the form generally as ceramic (sintering phenomena) or as monoliths (consolidation phenomena) with dense (by densification) or porous (by interparticle bridging) form. Innovative HP processes were designed for the high pressure syntheses related to: high pressure structural phase (e.g., diamonds instead of graphite) or low temperature structural phase (e.g., for SiO2: quartz instead of the other polymorphs, or amorphous instead of crystallized), consolidation of porous or dense biocomposites, sintering at temperature higher than their thermal decomposition, preservation of hydrates from the raw precursor, initiating a new finer microstructure, higher densification, improvement or driving the chemical reaction, assembling of materials with different thermal stability (e.g., multimaterials). Recently, innovative high pressure processes have emerged by the combination of different technologies opening new possibility for obtaining these advanced functional inorganic materials such as: high pressure & spark plasma sintering, cold isostatic pressure & minus temperature, hydrothermal synthesis & sintering.Michał Bembenek andAndrzej Uhryński, Analysis of the Temperature Distribution on the Surface of Saddle-Shaped Briquettes Consolidated in the Roller Press, Materials 2021, 14(7), 1770; https://doi.org/10.3390/ma14071770 - 03 Apr 2021érémy Guignard,Mythili Prakasam and Alain Largeteau, A Review of Binderless Polycrystalline Diamonds: Focus on the High-Pressure–High-Temperature Sintering Process, Materials 2022, 15(6), 2198; https://doi.org/10.3390/ma15062198 - 16 Mar 2022Yann Le Godec andAlexandre Courac, In Situ High-Pressure Synthesis of New Outstanding Light-Element Materials under Industrial P-T Range, Materials 2021, 14(15), 4245; https://doi.org/10.3390/ma14154245 - 29 Jul 2021Javier Gainza,Federico Serrano-Sánchez,João Elias F. S. Rodrigues,Norbert Marcel Nemes,José Luis Martínez and José Antonio Alonso, Metastable Materials Accessed under Moderate Pressure Conditions (P ≤ 3.5 GPa) in a Piston-Cylinder Press, Materials 2021, 14(8), 1946; https://doi.org/10.3390/ma14081946 - 13 Apr 2021Read less <