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?????? ?? ???? ??????? ???? ??? ??? ????? ???????? ???? ?????? ??????, ??? ??????? ????? ?????? ????? ??????? ?? ????????? ??????? ???? ???, ???? ?????, sintering, ?????. ??? 70-80% ???????? ????? ??????? ??????? ???? ????? ???? ???? ??? ???? ??. ????, ??????? ??????????? ???? ???? ??? ????????? ?? ??????? ???????? ???, ??? ?? ?? ???? ??? ?? ????? ????? ????. ????? ???? ?? ????? ???????? ?????, ??????? ????? ????? ???? ??? ?????? ??? ?????? ??????? ?? ?????? ???????? ??? ??? ???? ?? ????? ?????.
????? ???????? ???? (????), ????? (???? ????, ??????? ????, ????, ????, ??? '), ????????? ?????????? (??????, ?????? ?????, ???'), ??? ??????? ?????? ?????? ???????? ????? ????? ????? ??????, ?? ??? ???????? ?? ??????.
????, ????? ?? ???? ??????? ???? ???? ???? ?? ??? ?? ??? ????? ????? ?? ??????? ??????? ???? ????. ????? ?? ??????? ??? ????, ???? ????? ???????? ?? ????? ????, ????? ???? ?? ?????? ??????? ????? (carburization ?????).????? ????? ?? ?????? ??????? (????? ?'????? ????) ?? ???? ???? ???? ???? ????.
????? ????? ??????? ?? trioxide ??????? (WO3) ??????? ??????? ?????? (WO3-X), ?????? ????? ????? ?????? ???? ?????. ????? Tungstic (H2WO4) ????? ?? ?????? ???? ??????.
????? ??????, APT ???? ?? ????? ????? ????? ???? ??? ?? ??? calcinations ??????.?????? ?? ????? ????? ??? ???????? ?? ?????? ??? ?? ????????, ??? ???? ?????? ?? ????? ?????? ????? ?? ????? ?? ??? ????. ?????? ???, ??? ???, ??? ?????? ??????, ?????? ???? ??????, ???? ?????? ?? ??????.
????? ?????? ?????? ???? ?????? ????? ????? ?????? ?? ??????? ???????? (??? ????). ????? ????? ???? ?? ?????? ?? ????? ????? ??????? ?????? ??????? ????? ????. ???? ???? ????? ????? ?? ?????? ?????, ??? ?????? ?? W nanophase ?? ????? / ????? ???? Co. ?????? ??????? ?? ??? ????? ???????? ??????? ??? 600 ? 1100 ℃.???? ???? ?? ???? ????, ??? ?????? ????? ???? ?????.?????? ?? ???? ??? ???? ??? ?????? ????, ?????? ????? ?????? ????.????? ???? ?? ?? ????? ?????, ??? ?? ???? ???? ???? ??????.
?????? ?? ??????? ??????? ?? ??? ???? ????? ??????? ???, ????? ?????, ????? ??????. ??? ???? ?? ??????? ????? ???? ??????? ??? ???? ???? ????? ????? ??? 0.1 ?10 ???????? (?????? ?? ??????? ???????, ????? ?? 100μm), ??? ????? ???? ??????. ?????? ??????? ??? ????? ????? ????? ?????? ??????? ???? ??????? ?? ??????? (????? ?????? ????? /), ??????? ?? ??????? ????? ???????.
?? ??? ????? ???????? ??????, ??????? ???? ??? ???? ????? ?????, ??????? ???? ??????, ??? '?????? ????? ???????. ???????? ????? (?????, ??? ??? ??? ??????? ????? ??????) ?? ??? ???????? ??????? ?????? ????? ?????? ???? ???? W, ??????? ???? ????? ?? ?????? ??????? ??????? ?????? ??? ????? ?????. 5.19 ??? ????? ?????.????? ?????? ????? ?? ????? ?? ???? ???? ???? ?????? ????? ????? ?? ???? ?? ??? ????????? ?? ??? ????? ???????? ?????? ?? ??????? ??? ??????? ?? ???? ?????? ??????? ([WO2 (OH) 2 ]).????? ????? ????, ???? ???? ????? ????????? (????? ????? ??????) ???? ????? ????.
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