Linear shrinkage rate

Figure 7.12 Shrinkage curves (dropping from left to right) and temperature schedules (rising from left to right) for sintering under a linear temperature control of 15°C/min (solid line) and under a linear shrinkage rate control of 0.005 in/min (dotted line). [14]...

Specimen code Density (g-cm O Relative density %) Linearity shrinkage rate Length (%) Weight loss (%) Hv (GPa) Kic (MPam ) Bending strength (MPa)... 

Figure 2-1 Curves for linear shrinkage rate (a) and curves for activation energy (b) in alumina/lead borosilicate glass composites at different programming rates [Ref. 10, 11].

AL/Lq linear shrinkage rate, T absolute temperature, a programming rate, Q sintering apparent activation energy, R gas constant... 

Figure 2. Linear shrinkage versus temperature at l°C/min heating rate for silica gels prepared by three different methods a) two-step acid hydrolysis, b) two-step base hydrolysis, c) colloidal process. (Reproduced with permission from Ref. 4. Copyright 1984 Wiley- Interscience.)...

The effect of the particle size distribution on shrinkage rates has been considered previously for the initial stage sintering [46]. The problem was treated for the linear shrinkage of a pair of different size spherical particles in contact. These results were extended to distributions of a few discrete sizes by a weighting of all possible contacts. For a continuous distribution in size, this pairwise interaction can be... 

Figure 5.29 Linear shrinkage versus temperature during constant heating rate sintering at 2°C/min for an acid-catalyzed sUica gel (A), a base-catalyzed silica gel (B) and a colloidal siUca gel. The acid- and base-catalyzed gels were prepared with a water concentration of 4 mol H2O per mole of TEOS. (From Ref. 43.)...

Figure 5.30 Linear shrinkage and weight loss for a borosilicate gel during heating at a constant rate of 0.5°C/min. (From Ref. 41.)...

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