??? ?????? ????? ??? ???? ????? ???? ????, ?????? ?? ???? ?????? ????? ?????? ?????, ????????? ??????? ???????? ?????, ??????? ?????? ?????, ????? ?????? ????? ?? ????-SI ?????????????? ?????, ??? ?????? ???? ?? ??????? ?? ????? ?????? ?? ???????? ?????, ??? ??????? ???? ?? ?????? ???????? ????? ?????? ?????, ???-?? ????? ?? ????????? ??????? ???????? ?????, ?? ??, ???, ??????? ??? ????? ?????????? ??????? 5-150 ????, ?? ????????? ??? ???? ????, ????????? ???????? 1080 oC ??????? ??? ????? ????????? ??????? 5 ????? ????? ??? ????? ?????? ??? 25% ???? 40%? ??? ??????? ??? ?????????? ?????-???????? ??? ?????? ?????????? ???? ???? ?????????? ??????? ???????? ???? ??? ?????????? ??? ??? ??? ?????????? ???????????? ??????? ????????? ?????? ????? ?????? ??? ?????-???????? ???????? ??????? ???? ???, ????????? ??????? ????????? ?????????? ???????? ???? ???????????? ???? ??? ??? ??? ??????? ??? ???????? ?????? ??? ?????-???????? ?????? ??????????????? ????? ??? ?????? ???? ?????? ??? ?????-???????? ????????????? ????? ??? ?????