Sintering Mechanisms Maps

Any of the various mechanisms for sintering identified in Table 16.1 may contribute to the sintering rate. Which of the mechanisms contributes most to sintering depends on, among other things, particle size and temperature. Sometimes certain 

Heady and J.W. Cahn. An analysis of capillary force in liquid-phase sintering of spherical particles. Metall. Trans., 1(1) 185—189, 1970. 

Cahn and R.B. Heady. Analysis of capillary force in liquid-phase sintering of jagged particles. J. Am. Ceram. Soc., 53(7) 406 -409, 1970. 

Carter. The forces and behavior of fluids constrained by solids. Acta Metall., 36(8) 2283-2292, 1988. 

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Figure 16.10 Sintering mechanism map for silver powder of radius 100 pm plotted...

G. D. Quinn and W. R. Braue, Fracture Mechanism Maps for Advanced Structural Ceramics, Part 2, Sintered Silicon Nitride, /. Mater. Sci., 25, 4377-4392 (1990). 

The dominant mechanism and transport path—or combinations thereof—depend upon material properties such as the diffusivity spectrum, surface tension, temperature, chemistry, and atmosphere. The dominant mechanism may also change as the microstructure evolves from one sintering stage to another. Sintering maps that indicate dominant kinetic mechanisms for different microstructural scales and environmental conditions are discussed in Section 16.3.5. 

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