US2018334411A1PendingUtilityA1
Alumina body having nano-sized open-cell pores that are stable at high temperatures
Assignee: SUPERIOR TECHNICAL CERAMICS CORPPriority: Jan 29, 2016Filed: Jul 28, 2018Published: Nov 22, 2018
Est. expiryJan 29, 2036(~9.5 yrs left)· nominal 20-yr term from priority
Inventors:Tariq Quadir
C04B 38/0054B01D 71/025C01F 7/02C04B 38/0041C04B 38/0058C01F 7/023C01P 2006/16B01D 2325/02B01D 67/0041B01D 67/00411B01D 2325/0283B01D 61/027C01F 7/025B01D 61/145B01D 2325/22C04B 35/6264C04B 35/18C01P 2002/88C04B 35/111C04B 2235/5445C04B 35/6261C01P 2004/62C01P 2004/61C04B 2235/6567C04B 2235/5436C04B 2235/3218C04B 38/067C04B 35/62695B01D 69/02C01P 2004/51C04B 2111/00793C04B 2235/3217B01D 2325/02832B01D 67/00041
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Claims
Abstract
An alumina body having nano-sized open-cell pores, the alumina body is formed from α-Al 2 O 3 and Al(OH) 3 . The alumina body has porosity of greater than 36-percent by volume and a mean pore flow diameter less than 25-nm. The alumina body retains porosity of over 20-volume percent for temperatures up to 1510° C. for 1-hour. The nano-sized open-cell porous body can be scaled to any 3-dimensional structure.
Claims
exact text as granted — not AI-modified1 . A ceramic body, comprising:
α-Al 2 O 3 having a porosity of greater than 36 percent by volume and a mean open pore flow diameter less than 25 nanometers.
2 . A ceramic body as recited in claim 1 , wherein said porosity stays above 20 percent by volume at an annealing temperature of 1510° C. for 1 hour.Cited by (0)
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