Titan composition

Y. Ou, F. Yang, J. Chen, Interfacial interaction and mechanical properties of nylon 6-potassium titanate composites prepared by In-situ polymerization, Journal of Applied Polymer Science, vol. 64, pp. 2317-2322,1998. 

For most particulate composites the mismatch between the particles and the matrix is more important than the anisotropy of either component (though alumina/aluminium titanate composites provide a notable exception and are described below). The main features of the stresses can therefore be understood in terms of a simple elastic model assuming thermoelastic isotropy and consisting of a spherical particle in a concentric spherical shell of matrix with dimensions chosen to give the appropriate volume fractions. The particles are predicted to be under a uniform hydrostatic stress, ap after cooling. If the particles have a larger thermal expansion coefficient than the matrix, this stress is tensile, and vice versa. For small particle volume fractions the stress... 

Plot of strength versus indentation load for alumina with various grain sizes and alumina/aluminium-titanate composite. The data points and solid line are from the composite. The other lines are for alumina with various grain sizes A, 2.5 pm, experimental B, 6 pm, interpolated C, 80 pm, experimental (reproduced from Bennison et al. [7] by kind permission of Taylor and Francis Ltd (http // www.tandf.co.uk/journals). 

Padture, N.P., Bennison, S.J. and Chan, H.M. Flaw-tolerance and crack-resistance properties of alumina-aluminum titanate composites with tailored microstructures ,... 

Low, I.M. (1998a) Processing of an in-situ layered and graded alumina-aluminium titanate composites. Mater. Res. Bull. 33, 1475-1482. 

Manurung, P. (2001) Microstructural design and characterisation of alumina/aluminium titanate composites. Ph.D Thesis, Curtin University of Technology, Perth, Australia. 

Piezoelectric relaxation and Kramers-Kronig relations in a modified lead titanate composition... 

The PTC effect is distinguished from the majority of other critical temperature effects in the ease with which the critical temperature can be shifted by altering the composition. The replacement of barium in BaTiC>3 by strontium lowers the critical temperature by 4°C per percentage atomic replacement, whilst replacement by lead raises the critical temperature by 4.3 °C per percentage atomic replacement (see Fig. 2.47). Since the critical temperature for BaTiC>3 is 120-130 °C, it is a simple matter to prepare ceramics with PTC regions anywhere between -100 °C and +250 °C, although the highest temperature coefficients are found in barium titanate compositions without major quantities of substituents. 

Figure P-2 TEM images of (a) titanate (KxH2-xTi307) nanotubes used as the template, and (b) VOx/titanate composite nanorods prepared by hydrothermal treatment of the template. (Reprinted ftom L. Yu et al. Materials Chemistry and Physics, 2004, 87, 168. Copyright (2004) Elsevier. With permission.)...

In Russia, besides the Radium Institute, research on the synthesis of crystal ceramics is carried out mainly for the immobilization of actinide-containing wastes at the RPA Radon , the Bochvar VNIINM, and some other organizations. The research activities are at the stage of laboratory experiments with a use of simulators of actinides. As a rule, ceramics of the titanate composition of the SYNROC type are synthesized, or some other phases (for example, monazite). Two methods of synthesis used are the cold crucible or hot pressing. 

Q. Cheng, V. Pavlinek, Y. He, C. Li, P. Saha, Electrorheological characteristics of polyaniline/titanate composite nanotube suspensions. Colloid Polym. Sci., 2009, 287, 435. 

J.Y. Fu, Z. Zhu and L.E. Cross, Experimental studies of the converse flexoelectric effect induced by inhomogeneous electric field in a barium strontium titanate composition, J. Appl. Phys. 100(2), 024112/1-6, (2006). 

Figure 12.1 Effect of the barium titanate to strontium titanate ratio on the dielectric properties of barium titanate-strontium titanate composites. (After Reference 14.)...

Aluminum titanate composition Cordierite composition Silicon carbide... 

---