A visualization and computational study of horizontal Bridgman crystal growth

Interface shape control using localized heating during Bridgman growth

“…There have been several papers which have considered methods to control the meltcrystal interface shape [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Jasinski et al [2] analyzed how the position of the melt-crystal interface within the furnace gradient zone can affect its shape.…”

“…The entire interface became convex as the surface heating was increased. Lan et al [13] used a booster heater at the interface during the horizontal Bridgman growth of sodium nitrate. They obtained a convex interface shape which significantly improved the yield of single crystals.…”

The Role of Marangoni Convection in Crystal Growth

“…Lan et al [84] observed the flow patterns in the melt, heating profiles, and melt/ crystal interface shape during the crystal growth of NaNO 3 using an HB furnace, where the crucible was made of a half of a Pyrex glass tube. Lan et al [84] observed the flow patterns in the melt, heating profiles, and melt/ crystal interface shape during the crystal growth of NaNO 3 using an HB furnace, where the crucible was made of a half of a Pyrex glass tube.…”

Rapid Growth of a Yb:YAG Slab Crystal with Superior Laser Properties by the Edge-Defined Film-Fed Growth Method

“…13 However, the current iridium crucible used in the Cz method is costly and has a long growth cycle. Another method suitable for growing large-sized Yb:YAG plates is the horizontal directional solidification method (HDS), 14 which is characterized by no spin stripes, a free upper surface of the melt, and low processing volume. 15−17 mm × 25 mm Al 2 O 3 /YAG:Ce eutectic by the HDS method and studied the effect of Ce ion concentration on the microstructures of eutectics.…”

“…However, the current iridium crucible used in the Cz method is costly and has a long growth cycle. Another method suitable for growing large-sized Yb:YAG plates is the horizontal directional solidification method (HDS), which is characterized by no spin stripes, a free upper surface of the melt, and low processing volume. − Since 2015, Zhang’s group of Harbin Institute of Technology had successively obtained 170 mm × 150 mm × 30 mm Yb:YAG crystals and 170 mm × 160 mm × 25 mm Al 2 O 3 /YAG:Ce eutectic by the HDS method and studied the effect of Ce ion concentration on the microstructures of eutectics. , Nevertheless, the current HDS crystal quality is poor and insufficient to meet application needs. Therefore, it is urgent to break the bottleneck of existing growth methods and develop low-cost and rapid growth techniques for large-diameter Yb:YAG crystal plates.…”