Low temperature sintering: hydro/solvothermal sintering process


Low temperature process assisted by pressure under liquid phase (hydro/solvothermal reaction) suitable for technical ceramic making or multimaterials assembly (ceramic-ceramic or metal-ceramic).

This process allows to produce materials with a large scale of compactness
and porosity customisation (from <50% to ≥95%).

  • A wide range of applications with a high market growth 6,5% of CAGR* for technical ceramic
*CAGR: compound annual growth rate


Graziella GOGLIO
Institute for Solid State Chemistry Bordeaux (ICMCB, UPR 9048)


Nom : Benoît Philippeau Titre : Business Developer / Project Manager Engineering Sciences Mail : b.philipeau@ast-innovations.com


Low temperature hydrothermal sintering process for technical ceramic making and multimaterials assembly

  • Appropriate for a wide range of ceramics: oxide, sulfate, carbonate, phosphate, silicate, non oxide
  • Ceramics and/or metals can be crystallized or amorphous
  • Suitable for materials subject to transition at low temperature or metastable ones or nanometric materials
  • Suitable for multimaterial assembly without interphase creation
  • Low temperature and pressure process (from 25°C to 500°C and from 50 to 350MPa)
  • Sintering duration : from 1 to 60 min


Quantitative benefits

  • Energy and cost efficency of the process
  • Environment friendly process (no waste and green solvent)
  • Heating process independent from material conductivity
  • No need for a conductive mould nor a binder

Qualitative benefits

  • New advanced ceramics or assemblies
  • High flexibility for sintering criteria (temperature, pressure, material, solvent, duration…)
  • Same high performance of the ceramics than the classical ones (light, resilient, corrosion or shock resistant, …)


This technology is protected by a patent application

By | 2018-02-09T11:47:46+00:00 février 9th, 2018|