Melt Technique Bridgman-Stockbarger

The crucible is lowered (typically at a rate of 1 to 30 mm/h) so that the tip enters the colder zone causing the nucleation of crystals. The crystals grow fastest in particular crystallographic directions and crystals growing at angles greater than half the cone angle terminate at the 

The Bridgman-Stockbarger method has been used primarily in the growth of alkali halides and alkaline-earth halides (e.g., LiF and CaF2). Table 29.5 summarizes some 

TABLE 29.5 Typical Conditions for Bridgman-Stockbarger Growth  

FIGURE 29.9 Illustration of the heat-exchange (Schmid-Viechnicki) method. 

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The Bridgman-Stockbarger technique is illustrated in Figure 29.8. The powdered charge is melted in a crucible, which is often a refractory metal Pt, Ir, or Mo. This technique necessitates that the melt does not significantly react with the crucible. The furnace is designed such that there is a sharp drop in temperature just below the bottom tip of the crucible in its initial position. 

The Bridgman-Stockbarge melt growth technique. This method is named after P.W. Bridgman (United States) and D.C. Stockbarge (Germany) with the collaboration of three... 

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