CPC C04B 35/58071 (2013.01) [C01B 35/04 (2013.01); C04B 35/58 (2013.01); C04B 35/626 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/3258 (2013.01); C04B 2235/3272 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3279 (2013.01); C04B 2235/405 (2013.01); C04B 2235/42 (2013.01); C04B 2235/425 (2013.01); C04B 2235/52 (2013.01); C04B 2235/5292 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/6586 (2013.01)] | 14 Claims |
1. A method, comprising:
(a) preparing a precursor mixture, wherein the preparing comprises adding at least one additive to a plurality of reagents;
(i) wherein the plurality of reagents comprise titanium dioxide, a boron source, and a carbon source;
(ii) wherein the at least one additive is intentionally added and selected from the group consisting of:
(A) a salt of elements of Fe, Ni, Co, W, and Cr;
(B) a pure metal of elements of Fe, Ni, Co, W, and Cr;
(C) an alloy of elements of Fe, Ni, Co, W, and Cr; and
(D) combinations of (A)-(C); and
(b) carbothermically reacting the precursor mixture to form a titanium diboride particles, the titanium diboride particles defining a titanium diboride powder;
(i) wherein, at least partially due to the at least one additive, the titanium diboride particles realize a morphology selected from the group consisting of irregular, equiaxed, plate-like, and combinations thereof; and
(ii) wherein, at least partially due to the at least one additive, the titanium diboride powder produced by the titanium diboride particles realizes a fine particle size distribution, wherein the D50 of the titanium diboride particles is less than 3 micrometers;
wherein the preparing step (a) comprises adding from 0.001 to 0.75 wt. % of the at least one additive to the plurality of reagents based on a total weight of the titanium diboride powder.
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