US 12,319,623 B2
Process for improving flash sintering of ceramics and improved ceramics
Alan Weimer, Niwot, CO (US); Bola Yoon, Boulder, CO (US); Rishi Raj, Boulder, CO (US); and Rebecca O'Toole, Boulder, CO (US)
Assigned to The Regents of the University of Colorado, a body corporate, Denver, CO (US)
Appl. No. 17/434,719
Filed by The Regents of the University of Colorado, a body corporate, Denver, CO (US)
PCT Filed Feb. 27, 2020, PCT No. PCT/US2020/020234
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/176805, PCT Pub. Date Sep. 3, 2020.
Claims priority of provisional application 62/811,478, filed on Feb. 27, 2019.
Prior Publication US 2022/0127198 A1, Apr. 28, 2022
Int. Cl. C04B 35/628 (2006.01); C04B 35/117 (2006.01); C04B 35/488 (2006.01); C04B 35/563 (2006.01); C04B 35/565 (2006.01); C04B 35/581 (2006.01); C04B 35/64 (2006.01); C23C 16/40 (2006.01); C23C 16/44 (2006.01); C23C 16/455 (2006.01); C23C 16/56 (2006.01); H01M 8/12 (2016.01); H01M 8/1253 (2016.01)
CPC C04B 35/62884 (2013.01) [C04B 35/117 (2013.01); C04B 35/4885 (2013.01); C04B 35/563 (2013.01); C04B 35/565 (2013.01); C04B 35/581 (2013.01); C04B 35/6281 (2013.01); C04B 35/62813 (2013.01); C04B 35/62815 (2013.01); C04B 35/62836 (2013.01); C04B 35/62889 (2013.01); C04B 35/62894 (2013.01); C04B 35/62897 (2013.01); C04B 35/64 (2013.01); C23C 16/403 (2013.01); C23C 16/4417 (2013.01); C23C 16/45555 (2013.01); C23C 16/56 (2013.01); H01M 8/1253 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/3865 (2013.01); C04B 2235/66 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01); H01M 2008/1293 (2013.01); H01M 2300/0077 (2013.01); H01M 2300/0094 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of flash sintering, comprising:
providing particles comprising a first phase of boron carbide and having a surface;
using ALD to grow a film of a second phase on the surface of the particles to form a coated powder composition; and
flash sintering the coated powder composition.