??? ????? ?????? ??????? ?????? ??? ????? ??? ?? ??? ???? ????? ?????? ???????? ?? ??????? ????????. ???? ??? ??? ?????? WC ?? ??????? ????? ???? ????? ?????? ???? ?????? ??????? Co ????? ???? ????? ???? ???????.

????? ??? ????? ??? ?????? WC ??? ????? 100 ???????? ????? ???? ???? ???? ?? ?????? ?????. ???? ???? ??? ????? ??? ??????? ????? ?? ????? ?????? ???? ????? ????? ??????? ?????? ???????? ???? ???? ??????? ??? ??????? ???? ??????? ?? ???? ???????? ???? ????? ??????? ???????? ?? ????? ????????????? ??????? ???????? ??????? ????????? ?????? ???????? ???????? ?????? ?????? ??????? ???? ?????????.

?? ??? ???????? ???? ?????? ????? ?????? ????? ??????.

????? ????? ????? ??????

????? ????? ?????? ?????? ????? ???????? ?? ??? ????? ????? ??????? ??????? ?? ??????? ????? ????? ?????? ????? ?????? ??????? ???. ????? ???????? ???????? ????????? ????? ?? ???:

????? ????? ?????? ?????????? ?????? ??? ????? ??????

??????? ?????????? ?? ????? ?????? ?????? ??? ???? ????? ?????? ???????? ??? ????? ????????? ????? ??????. ??? ??????? ????? ?????? ???? ?????? ???? ???? ???? ????? ?????????. ?? ????? ??????? ????? ??????? ???????? ?????? ?????? ????? ?????? ?? ???? ????? ??????? ??????????? ?????? ???????:

???????? ????? ????? ?????????? ?????? ????? WC ?????? ?????? W ?C? ??? ??? ??????? ???? W ?C ?Co ???? 100 ???? ?????? ????? ???? ?? 11.3 ??????? WC-Co. ???? ????? ???? ??? ????? ????? ???? ?????? ???????? ????? ????? ?????????? ?????????. ???? ??? ??????? ???? WO ?Mg ?? ????? C ?? ????? ????? ??? ?? ????? N ?? H-Ar? ????? ????? ????? ????????? ?????? W ?MgO. ??? ???? ???? W ?????? ???????? ?? C ?????? WC ?WC. ??? ?????? ????? 4-20 ???????.

??? ??? ?????? WC ?Co ?? ????? ????? ??? ?????? ?????? ???????? ????? ?????? ???? ??????. ?????? ??????? ???????? ??? ??????? ?????? ??? ????? ??? ?????? WC ???? 10 ??????? ?? ???? ????? ?????? WC-10%Co ???? 40 ????? ?? ??? ?????? WC ???????? ?? Co. ?????? ??????? ??????? ??? ??????? ???? ?????? ????? 55 ???? / ????? ???? 300 ????? ?????? ??? ????? ??? ?????? ????? ???? 7 ???????.

????? ????? ????? ????? ?????? ???????? ????? ?????????? ????? ??????? ???????? ?????? ?? ??? ?????? ????. ??? ???? ???? ????? ?? ???? ???? ??????? ???? ???????? ?? ??????? ???????.

????? ????? ????

?? ????? ????? ????? ???? ?? ??? ???????? ?? ????? ???????? ?? ???????? ??????? ?????? ????? ???? ???? WC-Co. ?????? ??? ??????? ?????????? ????? ???? ?? ???????????? ????????? (CH4)6(H2W12O40)·4H2O ??????? ???????? CoCl2nH2O ?? ????? ???? Co(en)3WO4 ?H2WO4? ????? ??????? ?????? ?????? ?????? ???????? ?????? ??????? ?????? ???? 20-50. ??????? ????? ??? ??????.

????? ????? ???????

????? ???????? ?????????? ????? ?? ????? ?????? ?????? ???????????? ????? ??????? ?? ?????? ??? ?????? ??? ????? ??????? ?? ????? ??????. ??? ????? ??? ????????? ?????? ???????? ?? ????? ???? ????????????? ????? ??? ??? ??? ???? ??? ??? ??? ??? ???? ????? 800-900 ???? ????? ???? ??????? ?????? ??? ????? WC-Co ???????? ??? ????? 90%Ar-10% H2. ???? ??? ??????? ?????? ????? 50-80 ???????.

????? ?????? ???????

?????? ??? ??????? ??????? ???????? ?? ??????? ????????? (CH4)6(H2W12O40) ???????? ??????? ??????? ???????? ?????? ??? ????? ????? WC-Co ???? ????? ??? ??? ??? H2Co2W11O40. ??? ???? ?? ???? ????? ?????? H ?????? ???????? ??? ????? ????? WC-Co ???? 50 ???????. ??? ???? ??? ??????? ?????? ??? ??????? ???? ???? ???? W/Co ?????? ??? ?? ???? ?? 5.5. ??? ?? ????? (NH4)(H12W12O42) ?????????? ???????? ????? ????? ????? ?????? ?????? ?? W/Co? ????? ?????? ??? ???? ???? ?? ???????? ???????.

 

????? ????? ??????

????? ?????? ??????? ?? ????? ???????? ?? ?????? ??????? ??? ???? ??????? ?????? WC-Co ??????? ??????? ????? ?? ???? ????? WC-Co ?????? ???? ?????? ????? ?????? ????? ????? ?????? ???????? ????? ???????? ????? ??????? .

???? ????? ???????

????? ?? ???? ????? ????????? ??????? ??? ???? ????? ???????? ?? WC-Co? ????? ???? 1320 ???? ????? ????? ????? ????? ??????. ??? ???? ??? ???? ????? ????? ??????? ??? ?? ???? ????? ????????? ????? ?? ???? ????? 1280 ???? ?????? ???? ???? ????? ????? ????? ????? ?????.

??? ??????? ??????? WC-Co ??????? ??? ???????? ??????? ????? ???????? ????????? ??? ???? ????? ??????? ????? ???? ????. ??? ???? ??????? 0.4 ???????? ?? ????? ?? ???? ??? ?????? CrC? VC? TaC ?????? ???? ?? ???? ???? ???? ?? ???? ????? ??????? ???? ????????? ????? ???? ????? ????? ??????? ??? 770-850 ???? ?????. ???? ????? ????? ??????? ?? WC-15Co ???? ?????? 30 ??????? ?? 600 ???? ?????? ???? ????? ???? ?????? ??????? ??? 1200 ???? ?????. ???? ????? ????? ???????? ?????? WC-Co 30 ??????? ???????? ?????? ????? ???? ?? 580 ???? ?????.

?? ??????? ?????? ?????? ?? ??? ?? ????? ????? ?????? ???? ?? ?????? ?????? ????? ?????? ???? ????? ??? ???? ??????? ???? ????? ????? ????? ????? ????? ????? ??? ????? ?? ????? ????? ?????? ???? ?? ?????? ?????? ????? ????? ????.

??? ?????? ?? ????? ?????? ???????? ??????

???? ??? ??? ??? ??? ???????? ????? ???? ??? ??? ???????. ??? ????? ??????? ?????? nano WC-Co ???? ????? ?? ??? ???? ?????? ??? ??????? ??????. ?????? ??? ????? ??? ?????? ?? ????? WC-Co ????.

????? ????? ??? ??????. ??? ??? ?? ??? ?????? ?? ??? ?? ??? 5 ????? ?? ??????? ??? ????? ????? ????? ?????? WC-Co. ??????? ????? ???? ????? ???????? ???? ?????? ???? ????? ???????? ??? ??? ??????? ??? ?? ???? ?? ????? 1. ???????? ??? ???? ???? ????? ?????? ??????? ???? ??? ??? ?????? ???????. ??? ?? ???? ?? ????? ??????? ??? ???? ??? ???????? ????? ?? 0.2 ????????? ???? ??? ??????? ?????? ????? ??? ??? ?????? ??? ??????? ??? ???? ????? ???? ??????.

????????? ??? ??? ??? ?????? ????? ????? ??????? ?? ?????? ?????? ????? ?? ?????? ??? ????? ??????. ?? ?????? ?????? ????? ?????? ??? ?????? ??? ????????? ??? VC? Cr3C2? TaC? NbC ??????? ??? ???? ????? WC/Co ?????? ?????? ????? WC ?? ????? ?????? Co? ???????? ????? ??? ?????? WC. ?? ????? ????? ???? ?????? ?? ??? ?????? ?? ???? ?????? ?? ????? ??????? ?? ????? ?? ??? ????? ?????. ???? ?????? ????? ???????? ?????? (HIP) ?? ???? ??? ????? ?????? ????? ?????? ???? ??? ??????. ???????? ??? ???? ????? ??????? ???????? ????? ??????? ??????? ????? ????? ???????? ?? ??? ????? ????? ???? ?????? ??????. ?????? ?????? ????? ?????? ?????? ?????? ????? ?????? ??????? ?????? ?????? ??? ??????.

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??????? ???????? ???? ??????? ?????? ?? ????? ?????? ?? ??? ?????? ????? ???????. ??? ????? ?? ???? ?????? ?? ?????? ????? ??????? ??? ?? ????? ???????? ?????? ?? ???? ??? ?? ??? ?? 100 ???????. ????? ????? ??? ??????? ??? ????? ???? ??????? ??? ????? ??????? ???????? ?????? ???? ?? ?????? ??????? ??? ???? ??????? ?????? ?????? ?????? ??? ????? ???? ???? ??????.