Mechanochemical route

Materials and Process Design through Mechanochemical Routes, /. Mater. Synth. Processing, 2000, 8 (3-4), 235. 

Senna M. Incipient chemical interaction between fine particles under mechanical stress -a fearsibility of producing advanced materials via mechanochemical routes. Solid State Ionics 1993 63-65 3-9. 

Fig. 7.9 shows the temperature dependence of the dielectric constant and dielectric loss at 1 kHz for the PMN-PT ceramics obtained by sintering the calcined powders from a soft-mechanochemical route at 1200°C for 2 h. A diffuse phase transition, being typical for a relaxor, is observed for each ceramics. As x increases from 0 to 0.2, the maximum dielectric constant, K, , increases from 13000 to 27000. The temperature correspondent to K ,... 

Here, a new method for the preparation of an aqueous, well-dispersed sol of HAp nano particles directly via a mechanochemical route is described. It should be noted, that such products are very suitable for usual ceramic purposes as well. 

Merit of the present in situ preparation of HAp via a wet mechanochemical route is at least two-fold, i.e,... 

A new fabrication technique for perovskite ceramics via a soft-mechanochemical route. J. Am... 

Baek J.G., Gomi K., Isobe T., Senna M. Better ferroelectric ceramics starting from a soft-mechanochemical route. Chem. Sustainable Development 998 6 171-74. 

Reproduced from Oliveira PFM, Baron M, Chamayou A, Andr4-Barr4s C, Guidetti B, Baltas M. Solvent-free mechanochemical route for green synthesis of pharmaceutically attractive phenolhydrazones. RSC Adv 2014 4 56736-42, with permission from the Royal Scxiety of Chemistry. 

Beckert F, Trenkle S, Thomann R, Miilhaupt R. Mechanochemical route to functionalized graphene and carbon nanofillers for graphene/SBR nanocomposites. Macromol Mater Eng 2014 12 1513-20. 

Aidong T, Huaming Y, Chao ZX. Mechanochemical route to synthesize C03O4-CUO composite nanopowders. Int J Phys Sci 2006 l(2) 102-5. 

To elaborate the techniques of monoliths extrusion, the batches of powdered perovskites (up to 100 kg) were synthesized via mechanochemical route. In contrary to ceramic jierovskite powders, MA samples can be formed as rings without any addition of binder or peptizers into water-based pastes. However, after calcination at 500-900°C these rings have a rather low mechanical strength, which reaches an acceptable (ca 10 kg/cm ) level only after annealing at 1000°C. Any attempts to extrude micromonoliths without binders were imsuccessful. 

Kole GK, Koh LL, Lee SY et al (2010) A new ligand for metal-oiganic framework and co-crystal synthesis mechanochemical route to rctt-l,2,3,4-letrakis-(4 -carboxyphenyl)-... 

S. Yoshimoto, F. Ohashi, and T. Kameyama. Characterization and thermal degradation studies on polyaniline-intercalated montmorillonite nanocomposites prepared by a solvent-free mechanochemical route. Journal of Polymer Science Part B Polymer Physics, 43 (2005), 2705-2714. 

Memoto, R., Nakamura, S., Isobe, T., and Senna, M. (2001). Direct synthesis of hydroxyapatite-silk fibroin nano-composite sol via a mechanochemical route. J. Sol. Gel. Sci. Tech. 21 7-12. 

---