MTI corporation provides the high-quality Alumina (Al₂O₃ ) foam block for high-temperature tubing furnaces in universities, companies, and national labs. It comes with the specifications as the following:

• Max. working temperature:  < 1700ºC
• Diameter:  70 mm (2.76") ± 2mm (0.08")
• Length:     50 mm (2") ± 2mm (0.08")
• The blocks must be put between the sample the and flange.
• Fit MTI's GSL1600-80X Bench-top High-Temperature Tubing Vacuum Furnace and GSL1700-80X Bench-top High-Temperature Tubing Vacuum Furnace.

• To prevent dust falling issue and ensure a cleaning process, it is suggested to apply a thin layer of alumina adhesive material on the surface of the foam block. Please click underline to order.
• For direct delivery of precursor gasses over the heating zone, customer may drill a hole in the alumina block for sticking a 1/4" O.D. quartz (<1200ºC) or alumina (<1700ºC) tube to deliver gas into the furnace tube center. Porous alumina block is very soft and it can be hand-drilled through easily.
• Click to Watch the video “How to insert and remove foam block for MTI furnaces”.
• Click to Watch the video "How to modify the thermal blocks".