US 11,873,544 B2
Compositional variations of tungsten tetraboride with transition metals and light elements
Richard B. Kaner, Pacific Palisades, CA (US); Sarah H. Tolbert, Encino, CA (US); Reza Mohammadi, Los Angeles, CA (US); Andrew T. Lech, Los Angeles, CA (US); and Miao Xie, Los Angeles, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Jun. 25, 2020, as Appl. No. 16/912,396.
Application 16/912,396 is a continuation of application No. 16/142,607, filed on Sep. 26, 2018, granted, now 10,731,236.
Application 16/142,607 is a continuation of application No. 14/112,903, granted, now 10,125,412, issued on Nov. 13, 2018, previously published as PCT/US2012/034685, filed on Apr. 23, 2012.
Claims priority of provisional application 61/478,276, filed on Apr. 22, 2011.
Prior Publication US 2020/0325561 A1, Oct. 15, 2020
Int. Cl. C22C 27/04 (2006.01); C22C 1/02 (2006.01); C23C 30/00 (2006.01); C22C 29/14 (2006.01); B22F 9/04 (2006.01); C22C 1/04 (2023.01); C22C 1/10 (2023.01); B22F 5/00 (2006.01)
CPC C22C 27/04 (2013.01) [B22F 9/04 (2013.01); C22C 1/02 (2013.01); C22C 1/045 (2013.01); C22C 1/1084 (2013.01); C22C 29/14 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); B22F 2005/001 (2013.01); B22F 2009/041 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A tool comprising a surface or body, wherein the surface or body comprises a composition of formula W1-xMxBy,
wherein
W is tungsten;
B is boron;
M is at least one element selected from the group of elements consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), ruthenium (Ru), hafnium (Hf), tantalum (Ta), rhenium (Re), osmium (Os), iridium (Jr), lithium (Li) and aluminum (Al),
x is at least 0.001 and less than 0.999;
y is about 4.0; and
the composition of formula W1-xMxBy is a crystalline solid characterized by at least one X-ray diffraction pattern reflection at 2 theta=24.2±0.2.