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Disclosed is a method of fabricating a preceramic polymer for making a ceramic material including a metal boride. The method includes providing a starting preceramic polymer that includes a silicon-containing backbone chain and first and second reactive side groups extending off of the silicon-conta

Disclosed is a method of fabricating a preceramic polymer for making a ceramic material including a metal boride. The method includes providing a starting preceramic polymer that includes a silicon-containing backbone chain and first and second reactive side groups extending off of the silicon-containing backbone chain, reacting a boron-containing material with the first reactive side group to bond a boron moiety to the silicon-containing backbone chain, and reacting a metal-containing material with the second reactive side group to bond a metal moiety to the silicon-containing backbone chain such that the preceramic polymer includes the boron moiety and the metal moiety extending as side groups off of the silicon-containing backbone chain. Also disclosed is a preceramic polymer composition and a metal-boride-containing ceramic article fabricated from the preceramic polymer.

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1. A method of fabricating a preceramic polymer for making a ceramic material including a metal boride, the method comprising: providing a starting preceramic polymer that includes a silicon-containing backbone chain and first and second reactive side groups extending off of the silicon-containing b

1. A method of fabricating a preceramic polymer for making a ceramic material including a metal boride, the method comprising: providing a starting preceramic polymer that includes a silicon-containing backbone chain and first and second reactive side groups extending off of the silicon-containing backbone chain;reacting a boron-containing material with the first reactive side group to bond a boron moiety to the silicon-containing backbone chain, wherein the starting preceramic polymer is selected from the group consisting of polysilazane, polysilane, polysiloxane and combinations thereof; andreacting a metal-containing material with the second reactive side group to bond a metal moiety to the silicon-containing backbone chain such that the preceramic polymer includes the boron moiety and the metal moiety extending as side groups off of the silicon-containing backbone chain. 2. The method as recited in claim 1, wherein the boron-containing material is a borate compound. 3. The method as recited in claim 1, wherein the metal of the metal-containing material is a refractory metal. 4. The method as recited in claim 3, wherein the metal of the metal-containing material is selected from the group consisting of refractory metals. 5. The method as recited in claim 4, wherein the refractory metal is titanium. 6. The method as recited in claim 4, wherein the refractory metal is zirconium. 7. The method as recited in claim 1, wherein the boron-containing material is a borate compound and the metal-containing material is a metal alkoxide. 8. The method as recited in claim 1, wherein the first reactive side group is a N—H moiety and the second reactive side groups is a Si—H moiety. 9. The method as recited in claim 1, wherein the boron moiety and the metal moiety are bonded off of silicon atoms in the silicon-containing backbone chain. 10. A preceramic polymer composition comprising: a silicon-containing backbone chain including a boron moiety and a metal moiety extending as side groups off of the silicon-containing backbone chain, wherein the silicon-containing backbone chain is selected from the group consisting of polysilazane, polysilane, polysiloxane and combinations thereof. 11. The composition as recited in claim 10, wherein the boron moiety is a borate compound. 12. The composition as recited in claim 10, wherein the metal of the metal moiety is selected from the group consisting of refractory metals. 13. The composition as recited in claim 12, wherein the refractory metal is titanium. 14. The composition as recited in claim 12, wherein the refractory metal is zirconium. 15. The composition as recited in claim 10, wherein the boron moiety and the metal moiety are bonded off of silicon atoms in the silicon-containing backbone chain.